./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:32:04,552 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:32:04,657 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 04:32:04,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:32:04,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:32:04,694 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:32:04,695 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:32:04,696 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:32:04,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:32:04,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:32:04,698 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:32:04,699 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:32:04,699 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:32:04,700 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:32:04,700 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:32:04,701 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:32:04,701 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:32:04,702 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:32:04,702 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:32:04,703 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:32:04,704 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:32:04,709 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:32:04,710 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:32:04,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:32:04,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:32:04,711 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:32:04,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:32:04,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:32:04,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:32:04,712 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 04:32:04,712 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 04:32:04,716 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 04:32:04,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:32:04,717 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:32:04,717 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:32:04,718 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:32:04,718 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:32:04,718 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:32:04,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:32:04,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:32:04,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:32:04,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:32:04,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:32:04,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:32:04,722 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:32:04,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:32:04,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:32:04,723 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:32:04,723 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:32:04,724 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a [2024-11-09 04:32:05,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:32:05,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:32:05,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:32:05,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:32:05,152 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:32:05,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c Unable to find full path for "g++" [2024-11-09 04:32:07,289 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:32:07,506 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:32:07,506 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2024-11-09 04:32:07,515 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/data/85a1ef167/d70ba171346945de83bb613da7bb0ad0/FLAGd6bfa2348 [2024-11-09 04:32:07,532 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/data/85a1ef167/d70ba171346945de83bb613da7bb0ad0 [2024-11-09 04:32:07,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:32:07,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:32:07,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:32:07,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:32:07,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:32:07,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:32:07" (1/1) ... [2024-11-09 04:32:07,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f645eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:07, skipping insertion in model container [2024-11-09 04:32:07,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:32:07" (1/1) ... [2024-11-09 04:32:07,573 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:32:07,921 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:32:07,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:32:07,943 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:32:07,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:32:08,005 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:32:08,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08 WrapperNode [2024-11-09 04:32:08,006 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:32:08,007 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:32:08,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:32:08,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:32:08,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (1/1) ... [2024-11-09 04:32:08,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (1/1) ... [2024-11-09 04:32:08,069 INFO L138 Inliner]: procedures = 23, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 167 [2024-11-09 04:32:08,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:32:08,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:32:08,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:32:08,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:32:08,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (1/1) ... [2024-11-09 04:32:08,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (1/1) ... [2024-11-09 04:32:08,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (1/1) ... [2024-11-09 04:32:08,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (1/1) ... [2024-11-09 04:32:08,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (1/1) ... [2024-11-09 04:32:08,132 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (1/1) ... [2024-11-09 04:32:08,138 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (1/1) ... [2024-11-09 04:32:08,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (1/1) ... [2024-11-09 04:32:08,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:32:08,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:32:08,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:32:08,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:32:08,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (1/1) ... [2024-11-09 04:32:08,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:32:08,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:08,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:32:08,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:32:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:32:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 04:32:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 04:32:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 04:32:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 04:32:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:32:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:32:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:32:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:32:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:32:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:32:08,245 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 04:32:08,363 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:32:08,365 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:32:08,918 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 04:32:08,918 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:32:09,261 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:32:09,262 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:32:09,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:32:09 BoogieIcfgContainer [2024-11-09 04:32:09,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:32:09,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:32:09,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:32:09,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:32:09,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:32:07" (1/3) ... [2024-11-09 04:32:09,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38749849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:32:09, skipping insertion in model container [2024-11-09 04:32:09,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:08" (2/3) ... [2024-11-09 04:32:09,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38749849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:32:09, skipping insertion in model container [2024-11-09 04:32:09,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:32:09" (3/3) ... [2024-11-09 04:32:09,280 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2024-11-09 04:32:09,303 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:32:09,303 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-09 04:32:09,303 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 04:32:09,470 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 04:32:09,514 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 76 transitions, 166 flow [2024-11-09 04:32:09,665 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 879 states, 793 states have (on average 3.0163934426229506) internal successors, (2392), 878 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:09,698 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:32:09,705 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66afa458, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:32:09,706 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-09 04:32:09,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 879 states, 793 states have (on average 3.0163934426229506) internal successors, (2392), 878 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:09,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 04:32:09,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:09,719 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 04:32:09,719 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:09,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:09,727 INFO L85 PathProgramCache]: Analyzing trace with hash 16471344, now seen corresponding path program 1 times [2024-11-09 04:32:09,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:09,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550345447] [2024-11-09 04:32:09,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:09,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:32:10,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:10,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550345447] [2024-11-09 04:32:10,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550345447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:10,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:10,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 04:32:10,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472197869] [2024-11-09 04:32:10,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:10,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:32:10,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:10,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:32:10,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:32:10,128 INFO L87 Difference]: Start difference. First operand has 879 states, 793 states have (on average 3.0163934426229506) internal successors, (2392), 878 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:10,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:10,331 INFO L93 Difference]: Finished difference Result 879 states and 2392 transitions. [2024-11-09 04:32:10,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:32:10,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 04:32:10,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:10,357 INFO L225 Difference]: With dead ends: 879 [2024-11-09 04:32:10,357 INFO L226 Difference]: Without dead ends: 875 [2024-11-09 04:32:10,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:32:10,365 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 10 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:10,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 58 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:10,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-11-09 04:32:10,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 875. [2024-11-09 04:32:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 792 states have (on average 3.015151515151515) internal successors, (2388), 874 states have internal predecessors, (2388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 2388 transitions. [2024-11-09 04:32:10,536 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 2388 transitions. Word has length 4 [2024-11-09 04:32:10,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:10,537 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 2388 transitions. [2024-11-09 04:32:10,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:10,537 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 2388 transitions. [2024-11-09 04:32:10,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 04:32:10,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:10,540 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 04:32:10,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:32:10,541 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:10,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:10,542 INFO L85 PathProgramCache]: Analyzing trace with hash 16471345, now seen corresponding path program 1 times [2024-11-09 04:32:10,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:10,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446448610] [2024-11-09 04:32:10,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:10,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:10,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:32:10,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:10,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446448610] [2024-11-09 04:32:10,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446448610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:10,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:10,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:32:10,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767651477] [2024-11-09 04:32:10,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:10,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:32:10,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:10,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:32:10,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:10,888 INFO L87 Difference]: Start difference. First operand 875 states and 2388 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:11,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:11,108 INFO L93 Difference]: Finished difference Result 885 states and 2402 transitions. [2024-11-09 04:32:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:32:11,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 04:32:11,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:11,127 INFO L225 Difference]: With dead ends: 885 [2024-11-09 04:32:11,128 INFO L226 Difference]: Without dead ends: 883 [2024-11-09 04:32:11,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:11,131 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 13 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:11,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 54 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:32:11,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-09 04:32:11,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 881. [2024-11-09 04:32:11,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 798 states have (on average 3.0050125313283207) internal successors, (2398), 880 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 2398 transitions. [2024-11-09 04:32:11,204 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 2398 transitions. Word has length 4 [2024-11-09 04:32:11,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:11,205 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 2398 transitions. [2024-11-09 04:32:11,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 2398 transitions. [2024-11-09 04:32:11,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 04:32:11,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:11,207 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 04:32:11,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:32:11,207 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:11,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:11,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1072100311, now seen corresponding path program 1 times [2024-11-09 04:32:11,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:11,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783427711] [2024-11-09 04:32:11,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:11,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:11,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:32:11,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:11,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783427711] [2024-11-09 04:32:11,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783427711] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:11,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536233689] [2024-11-09 04:32:11,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:11,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:11,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:11,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:11,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:32:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:11,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 04:32:11,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:11,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 04:32:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:32:12,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:12,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:32:12,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536233689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:32:12,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2041103119] [2024-11-09 04:32:12,157 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:259) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:32:12,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:32:12,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 2] total 7 [2024-11-09 04:32:12,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566842373] [2024-11-09 04:32:12,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:32:12,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 04:32:12,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:12,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 04:32:12,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-09 04:32:12,163 INFO L87 Difference]: Start difference. First operand 881 states and 2398 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:12,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:12,767 INFO L93 Difference]: Finished difference Result 1777 states and 4824 transitions. [2024-11-09 04:32:12,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:32:12,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 04:32:12,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:12,779 INFO L225 Difference]: With dead ends: 1777 [2024-11-09 04:32:12,780 INFO L226 Difference]: Without dead ends: 903 [2024-11-09 04:32:12,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:32:12,790 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 29 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:12,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 130 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:32:12,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-09 04:32:12,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 899. [2024-11-09 04:32:12,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 816 states have (on average 2.965686274509804) internal successors, (2420), 898 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 2420 transitions. [2024-11-09 04:32:12,840 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 2420 transitions. Word has length 7 [2024-11-09 04:32:12,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:12,841 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 2420 transitions. [2024-11-09 04:32:12,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:12,841 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 2420 transitions. [2024-11-09 04:32:12,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 04:32:12,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:12,843 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1] [2024-11-09 04:32:12,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:32:13,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:13,051 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:13,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:13,051 INFO L85 PathProgramCache]: Analyzing trace with hash -89714255, now seen corresponding path program 2 times [2024-11-09 04:32:13,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:13,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493552460] [2024-11-09 04:32:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:13,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:32:13,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:13,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493552460] [2024-11-09 04:32:13,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493552460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:13,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093949278] [2024-11-09 04:32:13,653 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:32:13,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:13,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:13,658 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:13,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:32:13,768 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:32:13,768 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:32:13,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 04:32:13,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:13,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 04:32:14,077 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 04:32:14,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:14,343 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 04:32:14,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093949278] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:32:14,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1819909329] [2024-11-09 04:32:14,344 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:259) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:32:14,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:32:14,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 12 [2024-11-09 04:32:14,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844257696] [2024-11-09 04:32:14,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:32:14,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 04:32:14,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:14,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 04:32:14,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-09 04:32:14,351 INFO L87 Difference]: Start difference. First operand 899 states and 2420 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:15,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:15,211 INFO L93 Difference]: Finished difference Result 1786 states and 4829 transitions. [2024-11-09 04:32:15,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 04:32:15,212 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-09 04:32:15,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:15,221 INFO L225 Difference]: With dead ends: 1786 [2024-11-09 04:32:15,221 INFO L226 Difference]: Without dead ends: 903 [2024-11-09 04:32:15,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:32:15,225 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 85 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:15,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 166 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:32:15,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-09 04:32:15,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 899. [2024-11-09 04:32:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 818 states have (on average 2.946210268948655) internal successors, (2410), 898 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:15,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 2410 transitions. [2024-11-09 04:32:15,266 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 2410 transitions. Word has length 16 [2024-11-09 04:32:15,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:15,267 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 2410 transitions. [2024-11-09 04:32:15,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:15,268 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 2410 transitions. [2024-11-09 04:32:15,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 04:32:15,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:15,269 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:15,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 04:32:15,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:15,474 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:15,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:15,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1698633364, now seen corresponding path program 1 times [2024-11-09 04:32:15,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:15,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628876861] [2024-11-09 04:32:15,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:15,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-09 04:32:15,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:15,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628876861] [2024-11-09 04:32:15,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628876861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:15,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:15,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:32:15,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694913128] [2024-11-09 04:32:15,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:15,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:32:15,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:15,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:32:15,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:32:15,867 INFO L87 Difference]: Start difference. First operand 899 states and 2410 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:16,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:16,010 INFO L93 Difference]: Finished difference Result 899 states and 2410 transitions. [2024-11-09 04:32:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:32:16,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-09 04:32:16,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:16,020 INFO L225 Difference]: With dead ends: 899 [2024-11-09 04:32:16,020 INFO L226 Difference]: Without dead ends: 741 [2024-11-09 04:32:16,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:32:16,025 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 50 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:16,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 38 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:16,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-11-09 04:32:16,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 741. [2024-11-09 04:32:16,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 692 states have (on average 2.8815028901734103) internal successors, (1994), 740 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:16,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1994 transitions. [2024-11-09 04:32:16,066 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1994 transitions. Word has length 40 [2024-11-09 04:32:16,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:16,067 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 1994 transitions. [2024-11-09 04:32:16,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:16,067 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1994 transitions. [2024-11-09 04:32:16,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 04:32:16,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:16,070 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:16,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:32:16,070 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:16,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:16,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1698633363, now seen corresponding path program 1 times [2024-11-09 04:32:16,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:16,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382352294] [2024-11-09 04:32:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:16,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:16,885 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-09 04:32:16,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:16,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382352294] [2024-11-09 04:32:16,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382352294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:16,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83160054] [2024-11-09 04:32:16,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:16,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:16,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:16,892 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:16,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 04:32:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:17,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 04:32:17,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:17,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 04:32:17,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 04:32:17,248 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 04:32:17,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2024-11-09 04:32:17,274 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 04:32:17,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 04:32:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:17,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:18,684 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:18,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83160054] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:18,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:32:18,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 8] total 22 [2024-11-09 04:32:18,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934512073] [2024-11-09 04:32:18,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:18,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:32:18,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:18,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:32:18,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2024-11-09 04:32:18,687 INFO L87 Difference]: Start difference. First operand 741 states and 1994 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:18,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:18,979 INFO L93 Difference]: Finished difference Result 990 states and 2674 transitions. [2024-11-09 04:32:18,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:32:18,980 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-09 04:32:18,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:18,989 INFO L225 Difference]: With dead ends: 990 [2024-11-09 04:32:18,989 INFO L226 Difference]: Without dead ends: 914 [2024-11-09 04:32:18,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2024-11-09 04:32:18,991 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 223 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:18,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 46 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:32:18,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-11-09 04:32:19,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 817. [2024-11-09 04:32:19,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 775 states have (on average 2.9290322580645163) internal successors, (2270), 816 states have internal predecessors, (2270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:19,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 2270 transitions. [2024-11-09 04:32:19,030 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 2270 transitions. Word has length 40 [2024-11-09 04:32:19,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:19,030 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 2270 transitions. [2024-11-09 04:32:19,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:19,031 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 2270 transitions. [2024-11-09 04:32:19,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 04:32:19,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:19,032 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:19,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 04:32:19,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:19,237 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:19,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:19,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1118026200, now seen corresponding path program 1 times [2024-11-09 04:32:19,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:19,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235016702] [2024-11-09 04:32:19,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:19,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:19,423 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-09 04:32:19,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:19,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235016702] [2024-11-09 04:32:19,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235016702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:19,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:19,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:32:19,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209774745] [2024-11-09 04:32:19,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:19,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:32:19,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:19,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:32:19,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:19,425 INFO L87 Difference]: Start difference. First operand 817 states and 2270 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:19,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:19,527 INFO L93 Difference]: Finished difference Result 817 states and 2270 transitions. [2024-11-09 04:32:19,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:32:19,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-09 04:32:19,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:19,537 INFO L225 Difference]: With dead ends: 817 [2024-11-09 04:32:19,538 INFO L226 Difference]: Without dead ends: 667 [2024-11-09 04:32:19,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:19,540 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 44 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:19,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 36 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:19,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-09 04:32:19,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2024-11-09 04:32:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 647 states have (on average 2.884080370942813) internal successors, (1866), 666 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:19,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1866 transitions. [2024-11-09 04:32:19,572 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1866 transitions. Word has length 41 [2024-11-09 04:32:19,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:19,573 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 1866 transitions. [2024-11-09 04:32:19,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:19,574 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1866 transitions. [2024-11-09 04:32:19,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 04:32:19,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:19,578 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:19,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 04:32:19,578 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:19,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:19,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1118026199, now seen corresponding path program 1 times [2024-11-09 04:32:19,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:19,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580383842] [2024-11-09 04:32:19,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:19,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:20,220 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:20,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:20,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580383842] [2024-11-09 04:32:20,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580383842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:20,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210797621] [2024-11-09 04:32:20,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:20,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:20,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:20,224 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:20,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 04:32:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:20,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 04:32:20,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:20,629 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:20,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2024-11-09 04:32:20,942 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:20,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210797621] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:32:20,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1437125762] [2024-11-09 04:32:20,944 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:32:20,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:32:20,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-09 04:32:20,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232266516] [2024-11-09 04:32:20,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:32:20,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 04:32:20,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:20,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 04:32:20,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2024-11-09 04:32:20,948 INFO L87 Difference]: Start difference. First operand 667 states and 1866 transitions. Second operand has 25 states, 24 states have (on average 3.125) internal successors, (75), 25 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:21,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:21,721 INFO L93 Difference]: Finished difference Result 1249 states and 3518 transitions. [2024-11-09 04:32:21,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 04:32:21,722 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.125) internal successors, (75), 25 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-09 04:32:21,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:21,733 INFO L225 Difference]: With dead ends: 1249 [2024-11-09 04:32:21,733 INFO L226 Difference]: Without dead ends: 1181 [2024-11-09 04:32:21,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2024-11-09 04:32:21,735 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 268 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:21,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 85 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:32:21,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2024-11-09 04:32:21,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 973. [2024-11-09 04:32:21,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 958 states have (on average 2.9707724425887263) internal successors, (2846), 972 states have internal predecessors, (2846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:21,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 2846 transitions. [2024-11-09 04:32:21,782 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 2846 transitions. Word has length 41 [2024-11-09 04:32:21,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:21,783 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 2846 transitions. [2024-11-09 04:32:21,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.125) internal successors, (75), 25 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:21,783 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 2846 transitions. [2024-11-09 04:32:21,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 04:32:21,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:21,785 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:21,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 04:32:21,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:21,989 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:21,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:21,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1543424501, now seen corresponding path program 1 times [2024-11-09 04:32:21,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:21,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930460060] [2024-11-09 04:32:21,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:21,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:22,727 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:22,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:22,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930460060] [2024-11-09 04:32:22,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930460060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:22,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741573175] [2024-11-09 04:32:22,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:22,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:22,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:22,731 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:22,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 04:32:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:22,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 04:32:22,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:23,162 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:23,162 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:23,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2024-11-09 04:32:23,514 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:23,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741573175] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:32:23,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [868849247] [2024-11-09 04:32:23,515 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:32:23,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:32:23,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 25 [2024-11-09 04:32:23,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034967113] [2024-11-09 04:32:23,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:32:23,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 04:32:23,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:23,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 04:32:23,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2024-11-09 04:32:23,518 INFO L87 Difference]: Start difference. First operand 973 states and 2846 transitions. Second operand has 26 states, 25 states have (on average 3.12) internal successors, (78), 26 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:24,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:24,495 INFO L93 Difference]: Finished difference Result 2024 states and 6165 transitions. [2024-11-09 04:32:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 04:32:24,496 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.12) internal successors, (78), 26 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-09 04:32:24,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:24,512 INFO L225 Difference]: With dead ends: 2024 [2024-11-09 04:32:24,512 INFO L226 Difference]: Without dead ends: 1914 [2024-11-09 04:32:24,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=232, Invalid=760, Unknown=0, NotChecked=0, Total=992 [2024-11-09 04:32:24,517 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 286 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:24,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 128 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:32:24,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2024-11-09 04:32:24,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1578. [2024-11-09 04:32:24,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1566 states have (on average 3.2011494252873565) internal successors, (5013), 1577 states have internal predecessors, (5013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:24,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5013 transitions. [2024-11-09 04:32:24,597 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5013 transitions. Word has length 42 [2024-11-09 04:32:24,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:24,601 INFO L471 AbstractCegarLoop]: Abstraction has 1578 states and 5013 transitions. [2024-11-09 04:32:24,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.12) internal successors, (78), 26 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:24,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5013 transitions. [2024-11-09 04:32:24,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 04:32:24,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:24,603 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:24,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 04:32:24,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:24,804 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:24,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash -601518750, now seen corresponding path program 1 times [2024-11-09 04:32:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:24,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955901172] [2024-11-09 04:32:24,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:24,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:25,364 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-09 04:32:25,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:25,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955901172] [2024-11-09 04:32:25,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955901172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:25,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907734738] [2024-11-09 04:32:25,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:25,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:25,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:25,368 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:25,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 04:32:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:25,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 04:32:25,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:25,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 04:32:25,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 04:32:25,745 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 04:32:25,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 04:32:25,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 04:32:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:26,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:27,145 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:27,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907734738] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:27,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:32:27,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 8] total 22 [2024-11-09 04:32:27,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767720347] [2024-11-09 04:32:27,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:27,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:32:27,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:27,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:32:27,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2024-11-09 04:32:27,148 INFO L87 Difference]: Start difference. First operand 1578 states and 5013 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:27,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:27,468 INFO L93 Difference]: Finished difference Result 1746 states and 5377 transitions. [2024-11-09 04:32:27,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:32:27,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-09 04:32:27,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:27,484 INFO L225 Difference]: With dead ends: 1746 [2024-11-09 04:32:27,485 INFO L226 Difference]: Without dead ends: 1636 [2024-11-09 04:32:27,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2024-11-09 04:32:27,487 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 283 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:27,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 38 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:32:27,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2024-11-09 04:32:27,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1523. [2024-11-09 04:32:27,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1514 states have (on average 3.1347424042272127) internal successors, (4746), 1522 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:27,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 4746 transitions. [2024-11-09 04:32:27,558 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 4746 transitions. Word has length 43 [2024-11-09 04:32:27,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:27,559 INFO L471 AbstractCegarLoop]: Abstraction has 1523 states and 4746 transitions. [2024-11-09 04:32:27,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:27,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 4746 transitions. [2024-11-09 04:32:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 04:32:27,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:27,561 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:27,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 04:32:27,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 04:32:27,762 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:27,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:27,763 INFO L85 PathProgramCache]: Analyzing trace with hash 837248987, now seen corresponding path program 1 times [2024-11-09 04:32:27,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:27,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760077852] [2024-11-09 04:32:27,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:27,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:27,857 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:27,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:27,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760077852] [2024-11-09 04:32:27,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760077852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:27,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:27,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:32:27,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894148927] [2024-11-09 04:32:27,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:27,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:32:27,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:27,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:32:27,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:27,859 INFO L87 Difference]: Start difference. First operand 1523 states and 4746 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:28,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:28,014 INFO L93 Difference]: Finished difference Result 2823 states and 8748 transitions. [2024-11-09 04:32:28,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:32:28,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-09 04:32:28,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:28,031 INFO L225 Difference]: With dead ends: 2823 [2024-11-09 04:32:28,032 INFO L226 Difference]: Without dead ends: 1876 [2024-11-09 04:32:28,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:28,035 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 46 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:28,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 117 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:28,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2024-11-09 04:32:28,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1631. [2024-11-09 04:32:28,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1622 states have (on average 3.1134401972872996) internal successors, (5050), 1630 states have internal predecessors, (5050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:28,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 5050 transitions. [2024-11-09 04:32:28,109 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 5050 transitions. Word has length 47 [2024-11-09 04:32:28,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:28,109 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 5050 transitions. [2024-11-09 04:32:28,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 5050 transitions. [2024-11-09 04:32:28,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 04:32:28,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:28,111 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:28,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 04:32:28,112 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:28,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:28,112 INFO L85 PathProgramCache]: Analyzing trace with hash 763746318, now seen corresponding path program 1 times [2024-11-09 04:32:28,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:28,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283837871] [2024-11-09 04:32:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:28,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:28,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:28,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283837871] [2024-11-09 04:32:28,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283837871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:28,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:28,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:32:28,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512532002] [2024-11-09 04:32:28,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:28,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:32:28,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:28,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:32:28,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:28,252 INFO L87 Difference]: Start difference. First operand 1631 states and 5050 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:28,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:28,424 INFO L93 Difference]: Finished difference Result 2141 states and 6280 transitions. [2024-11-09 04:32:28,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:32:28,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-09 04:32:28,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:28,478 INFO L225 Difference]: With dead ends: 2141 [2024-11-09 04:32:28,479 INFO L226 Difference]: Without dead ends: 2004 [2024-11-09 04:32:28,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:32:28,481 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 72 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:28,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 78 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:28,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2024-11-09 04:32:28,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1631. [2024-11-09 04:32:28,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1622 states have (on average 3.1085080147965476) internal successors, (5042), 1630 states have internal predecessors, (5042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:28,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 5042 transitions. [2024-11-09 04:32:28,575 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 5042 transitions. Word has length 49 [2024-11-09 04:32:28,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:28,576 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 5042 transitions. [2024-11-09 04:32:28,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:28,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 5042 transitions. [2024-11-09 04:32:28,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 04:32:28,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:28,580 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:28,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 04:32:28,580 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:28,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:28,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1312750486, now seen corresponding path program 1 times [2024-11-09 04:32:28,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:28,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43393077] [2024-11-09 04:32:28,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:28,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:29,199 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-09 04:32:29,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:29,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43393077] [2024-11-09 04:32:29,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43393077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:29,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394685001] [2024-11-09 04:32:29,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:29,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:29,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:29,203 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:29,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 04:32:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:29,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-09 04:32:29,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:29,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 04:32:29,495 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-09 04:32:29,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-09 04:32:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:30,177 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:30,824 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:30,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394685001] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:32:30,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [827167838] [2024-11-09 04:32:30,826 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:32:30,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:32:30,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 25 [2024-11-09 04:32:30,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782925533] [2024-11-09 04:32:30,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:32:30,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 04:32:30,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:30,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 04:32:30,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2024-11-09 04:32:30,830 INFO L87 Difference]: Start difference. First operand 1631 states and 5042 transitions. Second operand has 27 states, 26 states have (on average 3.9615384615384617) internal successors, (103), 26 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:32,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:32,970 INFO L93 Difference]: Finished difference Result 3537 states and 10593 transitions. [2024-11-09 04:32:32,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 04:32:32,972 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.9615384615384617) internal successors, (103), 26 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-09 04:32:32,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:33,013 INFO L225 Difference]: With dead ends: 3537 [2024-11-09 04:32:33,013 INFO L226 Difference]: Without dead ends: 3483 [2024-11-09 04:32:33,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=438, Invalid=1284, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:32:33,017 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 640 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:33,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 241 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:32:33,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2024-11-09 04:32:33,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 2549. [2024-11-09 04:32:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 2540 states have (on average 3.1724409448818895) internal successors, (8058), 2548 states have internal predecessors, (8058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:33,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 8058 transitions. [2024-11-09 04:32:33,138 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 8058 transitions. Word has length 49 [2024-11-09 04:32:33,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:33,139 INFO L471 AbstractCegarLoop]: Abstraction has 2549 states and 8058 transitions. [2024-11-09 04:32:33,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.9615384615384617) internal successors, (103), 26 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 8058 transitions. [2024-11-09 04:32:33,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 04:32:33,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:33,141 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:33,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 04:32:33,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:33,346 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:33,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:33,347 INFO L85 PathProgramCache]: Analyzing trace with hash -805063218, now seen corresponding path program 2 times [2024-11-09 04:32:33,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:33,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762882456] [2024-11-09 04:32:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:33,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:33,498 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:33,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:33,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762882456] [2024-11-09 04:32:33,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762882456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:33,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:33,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:32:33,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323651335] [2024-11-09 04:32:33,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:33,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:32:33,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:33,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:32:33,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:32:33,501 INFO L87 Difference]: Start difference. First operand 2549 states and 8058 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:33,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:33,599 INFO L93 Difference]: Finished difference Result 2862 states and 8800 transitions. [2024-11-09 04:32:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:32:33,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-09 04:32:33,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:33,619 INFO L225 Difference]: With dead ends: 2862 [2024-11-09 04:32:33,619 INFO L226 Difference]: Without dead ends: 2849 [2024-11-09 04:32:33,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:32:33,622 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 26 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:33,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 46 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:33,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2024-11-09 04:32:33,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2823. [2024-11-09 04:32:33,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2823 states, 2814 states have (on average 3.083866382373845) internal successors, (8678), 2822 states have internal predecessors, (8678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:33,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2823 states to 2823 states and 8678 transitions. [2024-11-09 04:32:33,729 INFO L78 Accepts]: Start accepts. Automaton has 2823 states and 8678 transitions. Word has length 49 [2024-11-09 04:32:33,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:33,729 INFO L471 AbstractCegarLoop]: Abstraction has 2823 states and 8678 transitions. [2024-11-09 04:32:33,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2823 states and 8678 transitions. [2024-11-09 04:32:33,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 04:32:33,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:33,732 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:33,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 04:32:33,734 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:33,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:33,734 INFO L85 PathProgramCache]: Analyzing trace with hash -436390118, now seen corresponding path program 1 times [2024-11-09 04:32:33,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:33,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527662406] [2024-11-09 04:32:33,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:33,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:33,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:33,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527662406] [2024-11-09 04:32:33,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527662406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:33,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:33,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:32:33,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630218814] [2024-11-09 04:32:33,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:33,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:32:33,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:33,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:32:33,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:33,892 INFO L87 Difference]: Start difference. First operand 2823 states and 8678 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:34,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:34,050 INFO L93 Difference]: Finished difference Result 5115 states and 15692 transitions. [2024-11-09 04:32:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:32:34,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-09 04:32:34,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:34,074 INFO L225 Difference]: With dead ends: 5115 [2024-11-09 04:32:34,074 INFO L226 Difference]: Without dead ends: 3404 [2024-11-09 04:32:34,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:34,081 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 43 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:34,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 117 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:34,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2024-11-09 04:32:34,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3009. [2024-11-09 04:32:34,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3009 states, 3000 states have (on average 3.0713333333333335) internal successors, (9214), 3008 states have internal predecessors, (9214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:34,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3009 states to 3009 states and 9214 transitions. [2024-11-09 04:32:34,213 INFO L78 Accepts]: Start accepts. Automaton has 3009 states and 9214 transitions. Word has length 50 [2024-11-09 04:32:34,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:34,213 INFO L471 AbstractCegarLoop]: Abstraction has 3009 states and 9214 transitions. [2024-11-09 04:32:34,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:34,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3009 states and 9214 transitions. [2024-11-09 04:32:34,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 04:32:34,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:34,216 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:34,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 04:32:34,217 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:34,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:34,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1079905823, now seen corresponding path program 1 times [2024-11-09 04:32:34,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:34,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076544738] [2024-11-09 04:32:34,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:34,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:34,702 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-09 04:32:34,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:34,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076544738] [2024-11-09 04:32:34,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076544738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:34,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525376000] [2024-11-09 04:32:34,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:34,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:34,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:34,705 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:34,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 04:32:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:34,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 04:32:34,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:34,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 04:32:34,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 04:32:35,048 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 04:32:35,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2024-11-09 04:32:35,067 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 04:32:35,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 04:32:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:35,840 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:36,644 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 35 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:36,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525376000] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:32:36,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2046339955] [2024-11-09 04:32:36,645 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:32:36,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:32:36,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 25 [2024-11-09 04:32:36,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868649974] [2024-11-09 04:32:36,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:32:36,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 04:32:36,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:36,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 04:32:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2024-11-09 04:32:36,649 INFO L87 Difference]: Start difference. First operand 3009 states and 9214 transitions. Second operand has 27 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 26 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:37,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:37,866 INFO L93 Difference]: Finished difference Result 6944 states and 20719 transitions. [2024-11-09 04:32:37,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:32:37,867 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 26 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-09 04:32:37,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:37,910 INFO L225 Difference]: With dead ends: 6944 [2024-11-09 04:32:37,910 INFO L226 Difference]: Without dead ends: 6851 [2024-11-09 04:32:37,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=307, Invalid=883, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 04:32:37,916 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 533 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:37,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 175 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:32:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2024-11-09 04:32:38,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 4871. [2024-11-09 04:32:38,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4871 states, 4862 states have (on average 3.178938708350473) internal successors, (15456), 4870 states have internal predecessors, (15456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4871 states to 4871 states and 15456 transitions. [2024-11-09 04:32:38,133 INFO L78 Accepts]: Start accepts. Automaton has 4871 states and 15456 transitions. Word has length 52 [2024-11-09 04:32:38,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:38,133 INFO L471 AbstractCegarLoop]: Abstraction has 4871 states and 15456 transitions. [2024-11-09 04:32:38,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 26 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:38,134 INFO L276 IsEmpty]: Start isEmpty. Operand 4871 states and 15456 transitions. [2024-11-09 04:32:38,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 04:32:38,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:38,136 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:38,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 04:32:38,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:38,341 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:38,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1099794747, now seen corresponding path program 1 times [2024-11-09 04:32:38,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:38,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249938008] [2024-11-09 04:32:38,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:38,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:38,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:38,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249938008] [2024-11-09 04:32:38,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249938008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:38,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:38,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:32:38,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156999554] [2024-11-09 04:32:38,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:38,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:32:38,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:38,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:32:38,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:38,479 INFO L87 Difference]: Start difference. First operand 4871 states and 15456 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:38,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:38,650 INFO L93 Difference]: Finished difference Result 6291 states and 19657 transitions. [2024-11-09 04:32:38,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:32:38,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-09 04:32:38,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:38,688 INFO L225 Difference]: With dead ends: 6291 [2024-11-09 04:32:38,689 INFO L226 Difference]: Without dead ends: 6106 [2024-11-09 04:32:38,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:38,693 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 67 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:38,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 52 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:38,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6106 states. [2024-11-09 04:32:38,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6106 to 5053. [2024-11-09 04:32:38,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5053 states, 5044 states have (on average 3.1685170499603488) internal successors, (15982), 5052 states have internal predecessors, (15982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:38,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5053 states to 5053 states and 15982 transitions. [2024-11-09 04:32:38,929 INFO L78 Accepts]: Start accepts. Automaton has 5053 states and 15982 transitions. Word has length 55 [2024-11-09 04:32:38,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:38,929 INFO L471 AbstractCegarLoop]: Abstraction has 5053 states and 15982 transitions. [2024-11-09 04:32:38,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:38,930 INFO L276 IsEmpty]: Start isEmpty. Operand 5053 states and 15982 transitions. [2024-11-09 04:32:38,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 04:32:38,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:38,933 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:38,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 04:32:38,933 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:38,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:38,934 INFO L85 PathProgramCache]: Analyzing trace with hash 166121058, now seen corresponding path program 1 times [2024-11-09 04:32:38,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:38,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950456183] [2024-11-09 04:32:38,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:38,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:39,051 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:39,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:39,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950456183] [2024-11-09 04:32:39,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950456183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:39,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:39,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:32:39,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969195117] [2024-11-09 04:32:39,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:39,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:32:39,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:39,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:32:39,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:39,054 INFO L87 Difference]: Start difference. First operand 5053 states and 15982 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:39,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:39,242 INFO L93 Difference]: Finished difference Result 6063 states and 18516 transitions. [2024-11-09 04:32:39,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:32:39,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-09 04:32:39,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:39,278 INFO L225 Difference]: With dead ends: 6063 [2024-11-09 04:32:39,278 INFO L226 Difference]: Without dead ends: 5830 [2024-11-09 04:32:39,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:39,283 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 51 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:39,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 73 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:39,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5830 states. [2024-11-09 04:32:39,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5830 to 5141. [2024-11-09 04:32:39,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5132 states have (on average 3.1441932969602493) internal successors, (16136), 5140 states have internal predecessors, (16136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:39,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 16136 transitions. [2024-11-09 04:32:39,451 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 16136 transitions. Word has length 55 [2024-11-09 04:32:39,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:39,452 INFO L471 AbstractCegarLoop]: Abstraction has 5141 states and 16136 transitions. [2024-11-09 04:32:39,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:39,452 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 16136 transitions. [2024-11-09 04:32:39,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 04:32:39,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:39,460 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:39,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 04:32:39,460 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:39,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:39,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1376044795, now seen corresponding path program 2 times [2024-11-09 04:32:39,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:39,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816317664] [2024-11-09 04:32:39,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:39,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:39,560 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:39,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:39,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816317664] [2024-11-09 04:32:39,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816317664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:39,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:39,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:32:39,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483288245] [2024-11-09 04:32:39,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:39,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:32:39,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:39,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:32:39,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:39,566 INFO L87 Difference]: Start difference. First operand 5141 states and 16136 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:39,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:39,758 INFO L93 Difference]: Finished difference Result 5898 states and 17932 transitions. [2024-11-09 04:32:39,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:32:39,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-09 04:32:39,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:39,795 INFO L225 Difference]: With dead ends: 5898 [2024-11-09 04:32:39,795 INFO L226 Difference]: Without dead ends: 5709 [2024-11-09 04:32:39,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:32:39,800 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 63 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:39,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 75 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:39,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5709 states. [2024-11-09 04:32:39,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5709 to 5141. [2024-11-09 04:32:39,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5132 states have (on average 3.1434138737334374) internal successors, (16132), 5140 states have internal predecessors, (16132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:40,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 16132 transitions. [2024-11-09 04:32:40,009 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 16132 transitions. Word has length 55 [2024-11-09 04:32:40,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:40,010 INFO L471 AbstractCegarLoop]: Abstraction has 5141 states and 16132 transitions. [2024-11-09 04:32:40,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:40,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 16132 transitions. [2024-11-09 04:32:40,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 04:32:40,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:40,014 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:40,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 04:32:40,014 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:40,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:40,015 INFO L85 PathProgramCache]: Analyzing trace with hash 692870712, now seen corresponding path program 2 times [2024-11-09 04:32:40,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:40,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100460727] [2024-11-09 04:32:40,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:40,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:40,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:40,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100460727] [2024-11-09 04:32:40,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100460727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:40,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:40,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:32:40,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741285507] [2024-11-09 04:32:40,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:40,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:32:40,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:40,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:32:40,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:40,121 INFO L87 Difference]: Start difference. First operand 5141 states and 16132 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:40,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:40,286 INFO L93 Difference]: Finished difference Result 6531 states and 20022 transitions. [2024-11-09 04:32:40,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:32:40,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-09 04:32:40,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:40,322 INFO L225 Difference]: With dead ends: 6531 [2024-11-09 04:32:40,322 INFO L226 Difference]: Without dead ends: 6298 [2024-11-09 04:32:40,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:40,327 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 65 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:40,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 51 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:40,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6298 states. [2024-11-09 04:32:40,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6298 to 5053. [2024-11-09 04:32:40,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5053 states, 5044 states have (on average 3.1296590007930214) internal successors, (15786), 5052 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:40,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5053 states to 5053 states and 15786 transitions. [2024-11-09 04:32:40,486 INFO L78 Accepts]: Start accepts. Automaton has 5053 states and 15786 transitions. Word has length 55 [2024-11-09 04:32:40,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:40,487 INFO L471 AbstractCegarLoop]: Abstraction has 5053 states and 15786 transitions. [2024-11-09 04:32:40,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:40,487 INFO L276 IsEmpty]: Start isEmpty. Operand 5053 states and 15786 transitions. [2024-11-09 04:32:40,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 04:32:40,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:40,493 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:40,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 04:32:40,494 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:40,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:40,494 INFO L85 PathProgramCache]: Analyzing trace with hash -806963195, now seen corresponding path program 3 times [2024-11-09 04:32:40,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:40,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84006337] [2024-11-09 04:32:40,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:40,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:40,600 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:40,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:40,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84006337] [2024-11-09 04:32:40,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84006337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:40,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:40,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:32:40,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403725898] [2024-11-09 04:32:40,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:40,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:32:40,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:40,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:32:40,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:40,603 INFO L87 Difference]: Start difference. First operand 5053 states and 15786 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:40,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:40,791 INFO L93 Difference]: Finished difference Result 5618 states and 17160 transitions. [2024-11-09 04:32:40,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:32:40,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-09 04:32:40,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:40,825 INFO L225 Difference]: With dead ends: 5618 [2024-11-09 04:32:40,825 INFO L226 Difference]: Without dead ends: 5433 [2024-11-09 04:32:40,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:32:40,829 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:40,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 82 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:40,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5433 states. [2024-11-09 04:32:41,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5433 to 4871. [2024-11-09 04:32:41,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4871 states, 4862 states have (on average 3.1028383381324556) internal successors, (15086), 4870 states have internal predecessors, (15086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:41,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4871 states to 4871 states and 15086 transitions. [2024-11-09 04:32:41,110 INFO L78 Accepts]: Start accepts. Automaton has 4871 states and 15086 transitions. Word has length 55 [2024-11-09 04:32:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:41,111 INFO L471 AbstractCegarLoop]: Abstraction has 4871 states and 15086 transitions. [2024-11-09 04:32:41,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 4871 states and 15086 transitions. [2024-11-09 04:32:41,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 04:32:41,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:41,117 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:41,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 04:32:41,117 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:41,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:41,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1422961673, now seen corresponding path program 1 times [2024-11-09 04:32:41,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:41,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659878073] [2024-11-09 04:32:41,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:41,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:41,828 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 34 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:41,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:41,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659878073] [2024-11-09 04:32:41,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659878073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:41,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340091595] [2024-11-09 04:32:41,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:41,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:41,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:41,831 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:41,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 04:32:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:41,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:32:41,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:42,439 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 30 proven. 22 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:42,440 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:42,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2024-11-09 04:32:42,950 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 30 proven. 22 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:42,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340091595] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:32:42,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [232014933] [2024-11-09 04:32:42,952 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:32:42,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:32:42,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 32 [2024-11-09 04:32:42,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834813835] [2024-11-09 04:32:42,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:32:42,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 04:32:42,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:42,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 04:32:42,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=865, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 04:32:42,956 INFO L87 Difference]: Start difference. First operand 4871 states and 15086 transitions. Second operand has 33 states, 32 states have (on average 4.09375) internal successors, (131), 33 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:44,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:44,431 INFO L93 Difference]: Finished difference Result 8668 states and 25334 transitions. [2024-11-09 04:32:44,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:32:44,432 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 4.09375) internal successors, (131), 33 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-09 04:32:44,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:44,475 INFO L225 Difference]: With dead ends: 8668 [2024-11-09 04:32:44,475 INFO L226 Difference]: Without dead ends: 8572 [2024-11-09 04:32:44,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=319, Invalid=1403, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:32:44,482 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 585 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:44,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 285 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 04:32:44,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8572 states. [2024-11-09 04:32:44,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8572 to 5871. [2024-11-09 04:32:44,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5871 states, 5862 states have (on average 3.1197543500511773) internal successors, (18288), 5870 states have internal predecessors, (18288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:44,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5871 states to 5871 states and 18288 transitions. [2024-11-09 04:32:44,681 INFO L78 Accepts]: Start accepts. Automaton has 5871 states and 18288 transitions. Word has length 59 [2024-11-09 04:32:44,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:44,682 INFO L471 AbstractCegarLoop]: Abstraction has 5871 states and 18288 transitions. [2024-11-09 04:32:44,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.09375) internal successors, (131), 33 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:44,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5871 states and 18288 transitions. [2024-11-09 04:32:44,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 04:32:44,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:44,686 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:44,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 04:32:44,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:44,887 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:44,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:44,888 INFO L85 PathProgramCache]: Analyzing trace with hash 717593963, now seen corresponding path program 1 times [2024-11-09 04:32:44,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:44,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550744627] [2024-11-09 04:32:44,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:44,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 18 proven. 32 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:45,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:45,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550744627] [2024-11-09 04:32:45,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550744627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:45,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003360450] [2024-11-09 04:32:45,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:45,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:45,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:45,590 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:45,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 04:32:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:45,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:32:45,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:46,156 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:46,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:46,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2024-11-09 04:32:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:32:46,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003360450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:32:46,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1244180278] [2024-11-09 04:32:46,601 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:32:46,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:32:46,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 32 [2024-11-09 04:32:46,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230126470] [2024-11-09 04:32:46,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:32:46,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 04:32:46,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:46,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 04:32:46,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=865, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 04:32:46,605 INFO L87 Difference]: Start difference. First operand 5871 states and 18288 transitions. Second operand has 33 states, 32 states have (on average 4.1875) internal successors, (134), 33 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:47,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:47,774 INFO L93 Difference]: Finished difference Result 9577 states and 28295 transitions. [2024-11-09 04:32:47,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:32:47,775 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 4.1875) internal successors, (134), 33 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-09 04:32:47,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:47,816 INFO L225 Difference]: With dead ends: 9577 [2024-11-09 04:32:47,816 INFO L226 Difference]: Without dead ends: 9464 [2024-11-09 04:32:47,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=319, Invalid=1403, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:32:47,823 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 605 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:47,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 230 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 04:32:47,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9464 states. [2024-11-09 04:32:48,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9464 to 6815. [2024-11-09 04:32:48,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6815 states, 6806 states have (on average 3.1104907434616513) internal successors, (21170), 6814 states have internal predecessors, (21170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:48,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6815 states to 6815 states and 21170 transitions. [2024-11-09 04:32:48,108 INFO L78 Accepts]: Start accepts. Automaton has 6815 states and 21170 transitions. Word has length 60 [2024-11-09 04:32:48,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:48,108 INFO L471 AbstractCegarLoop]: Abstraction has 6815 states and 21170 transitions. [2024-11-09 04:32:48,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.1875) internal successors, (134), 33 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:48,109 INFO L276 IsEmpty]: Start isEmpty. Operand 6815 states and 21170 transitions. [2024-11-09 04:32:48,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:32:48,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:48,113 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:48,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 04:32:48,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:48,314 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:48,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:48,315 INFO L85 PathProgramCache]: Analyzing trace with hash -731887027, now seen corresponding path program 1 times [2024-11-09 04:32:48,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:48,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535358842] [2024-11-09 04:32:48,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:48,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:49,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:49,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535358842] [2024-11-09 04:32:49,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535358842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:49,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:49,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:32:49,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439626402] [2024-11-09 04:32:49,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:49,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:32:49,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:49,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:32:49,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:32:49,180 INFO L87 Difference]: Start difference. First operand 6815 states and 21170 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:50,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:50,245 INFO L93 Difference]: Finished difference Result 7811 states and 23671 transitions. [2024-11-09 04:32:50,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:32:50,247 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:32:50,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:50,289 INFO L225 Difference]: With dead ends: 7811 [2024-11-09 04:32:50,289 INFO L226 Difference]: Without dead ends: 7772 [2024-11-09 04:32:50,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:32:50,295 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 203 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:50,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 106 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:32:50,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7772 states. [2024-11-09 04:32:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7772 to 6885. [2024-11-09 04:32:50,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6885 states, 6876 states have (on average 3.10369400814427) internal successors, (21341), 6884 states have internal predecessors, (21341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:50,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 21341 transitions. [2024-11-09 04:32:50,559 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 21341 transitions. Word has length 61 [2024-11-09 04:32:50,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:50,560 INFO L471 AbstractCegarLoop]: Abstraction has 6885 states and 21341 transitions. [2024-11-09 04:32:50,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:50,560 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 21341 transitions. [2024-11-09 04:32:50,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:32:50,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:50,564 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:50,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 04:32:50,565 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:50,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:50,565 INFO L85 PathProgramCache]: Analyzing trace with hash -211553295, now seen corresponding path program 2 times [2024-11-09 04:32:50,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:50,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093123023] [2024-11-09 04:32:50,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:50,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:51,344 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:51,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:51,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093123023] [2024-11-09 04:32:51,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093123023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:51,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:51,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:32:51,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603016608] [2024-11-09 04:32:51,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:51,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:32:51,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:51,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:32:51,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:32:51,347 INFO L87 Difference]: Start difference. First operand 6885 states and 21341 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:52,164 INFO L93 Difference]: Finished difference Result 7837 states and 23773 transitions. [2024-11-09 04:32:52,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:32:52,164 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:32:52,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:52,193 INFO L225 Difference]: With dead ends: 7837 [2024-11-09 04:32:52,193 INFO L226 Difference]: Without dead ends: 7798 [2024-11-09 04:32:52,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:32:52,198 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 176 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:52,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 110 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:32:52,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7798 states. [2024-11-09 04:32:52,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7798 to 6898. [2024-11-09 04:32:52,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6898 states, 6889 states have (on average 3.1030628538249383) internal successors, (21377), 6897 states have internal predecessors, (21377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:52,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6898 states to 6898 states and 21377 transitions. [2024-11-09 04:32:52,390 INFO L78 Accepts]: Start accepts. Automaton has 6898 states and 21377 transitions. Word has length 61 [2024-11-09 04:32:52,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:52,391 INFO L471 AbstractCegarLoop]: Abstraction has 6898 states and 21377 transitions. [2024-11-09 04:32:52,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:52,391 INFO L276 IsEmpty]: Start isEmpty. Operand 6898 states and 21377 transitions. [2024-11-09 04:32:52,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:32:52,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:52,395 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:52,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 04:32:52,396 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:52,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:52,396 INFO L85 PathProgramCache]: Analyzing trace with hash 454480241, now seen corresponding path program 3 times [2024-11-09 04:32:52,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:52,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148592853] [2024-11-09 04:32:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:52,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:53,068 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:53,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:53,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148592853] [2024-11-09 04:32:53,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148592853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:53,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:53,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:32:53,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416046787] [2024-11-09 04:32:53,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:53,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:32:53,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:53,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:32:53,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:32:53,071 INFO L87 Difference]: Start difference. First operand 6898 states and 21377 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:53,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:53,740 INFO L93 Difference]: Finished difference Result 7841 states and 23784 transitions. [2024-11-09 04:32:53,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:32:53,742 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:32:53,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:53,769 INFO L225 Difference]: With dead ends: 7841 [2024-11-09 04:32:53,769 INFO L226 Difference]: Without dead ends: 7802 [2024-11-09 04:32:53,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:32:53,772 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 184 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:53,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 108 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:32:53,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7802 states. [2024-11-09 04:32:53,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7802 to 6898. [2024-11-09 04:32:53,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6898 states, 6889 states have (on average 3.1030628538249383) internal successors, (21377), 6897 states have internal predecessors, (21377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:53,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6898 states to 6898 states and 21377 transitions. [2024-11-09 04:32:53,951 INFO L78 Accepts]: Start accepts. Automaton has 6898 states and 21377 transitions. Word has length 61 [2024-11-09 04:32:53,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:53,952 INFO L471 AbstractCegarLoop]: Abstraction has 6898 states and 21377 transitions. [2024-11-09 04:32:53,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:53,952 INFO L276 IsEmpty]: Start isEmpty. Operand 6898 states and 21377 transitions. [2024-11-09 04:32:53,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:32:53,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:53,956 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:53,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 04:32:53,957 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:53,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:53,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1509781801, now seen corresponding path program 4 times [2024-11-09 04:32:53,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:53,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73952778] [2024-11-09 04:32:53,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:53,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:54,772 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:54,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:54,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73952778] [2024-11-09 04:32:54,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73952778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:54,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:54,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:32:54,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650721988] [2024-11-09 04:32:54,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:54,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:32:54,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:54,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:32:54,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:32:54,775 INFO L87 Difference]: Start difference. First operand 6898 states and 21377 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:55,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:55,937 INFO L93 Difference]: Finished difference Result 7851 states and 23803 transitions. [2024-11-09 04:32:55,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 04:32:55,939 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:32:55,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:55,970 INFO L225 Difference]: With dead ends: 7851 [2024-11-09 04:32:55,970 INFO L226 Difference]: Without dead ends: 7812 [2024-11-09 04:32:55,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2024-11-09 04:32:55,974 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 240 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:55,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 110 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:32:55,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7812 states. [2024-11-09 04:32:56,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7812 to 6898. [2024-11-09 04:32:56,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6898 states, 6889 states have (on average 3.1030628538249383) internal successors, (21377), 6897 states have internal predecessors, (21377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:56,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6898 states to 6898 states and 21377 transitions. [2024-11-09 04:32:56,175 INFO L78 Accepts]: Start accepts. Automaton has 6898 states and 21377 transitions. Word has length 61 [2024-11-09 04:32:56,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:56,175 INFO L471 AbstractCegarLoop]: Abstraction has 6898 states and 21377 transitions. [2024-11-09 04:32:56,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:56,176 INFO L276 IsEmpty]: Start isEmpty. Operand 6898 states and 21377 transitions. [2024-11-09 04:32:56,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:32:56,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:56,180 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:56,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 04:32:56,180 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:56,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:56,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1957803163, now seen corresponding path program 5 times [2024-11-09 04:32:56,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:56,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307167559] [2024-11-09 04:32:56,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:56,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:56,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:56,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307167559] [2024-11-09 04:32:56,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307167559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:56,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:56,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:32:56,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381326197] [2024-11-09 04:32:56,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:56,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:32:56,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:56,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:32:56,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:32:56,893 INFO L87 Difference]: Start difference. First operand 6898 states and 21377 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:57,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:57,693 INFO L93 Difference]: Finished difference Result 7905 states and 23945 transitions. [2024-11-09 04:32:57,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:32:57,694 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:32:57,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:57,718 INFO L225 Difference]: With dead ends: 7905 [2024-11-09 04:32:57,718 INFO L226 Difference]: Without dead ends: 7866 [2024-11-09 04:32:57,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:32:57,722 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 199 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:57,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 93 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:32:57,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7866 states. [2024-11-09 04:32:57,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7866 to 6911. [2024-11-09 04:32:57,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6911 states, 6902 states have (on average 3.101854534917415) internal successors, (21409), 6910 states have internal predecessors, (21409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:58,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6911 states to 6911 states and 21409 transitions. [2024-11-09 04:32:58,045 INFO L78 Accepts]: Start accepts. Automaton has 6911 states and 21409 transitions. Word has length 61 [2024-11-09 04:32:58,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:58,046 INFO L471 AbstractCegarLoop]: Abstraction has 6911 states and 21409 transitions. [2024-11-09 04:32:58,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:58,046 INFO L276 IsEmpty]: Start isEmpty. Operand 6911 states and 21409 transitions. [2024-11-09 04:32:58,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:32:58,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:58,053 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:58,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 04:32:58,054 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:58,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:58,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1774458335, now seen corresponding path program 6 times [2024-11-09 04:32:58,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:58,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848675044] [2024-11-09 04:32:58,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:58,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:58,796 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:32:58,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:58,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848675044] [2024-11-09 04:32:58,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848675044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:58,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:58,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:32:58,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378698714] [2024-11-09 04:32:58,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:58,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:32:58,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:58,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:32:58,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:32:58,799 INFO L87 Difference]: Start difference. First operand 6911 states and 21409 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:59,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:59,621 INFO L93 Difference]: Finished difference Result 7927 states and 24021 transitions. [2024-11-09 04:32:59,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:32:59,623 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:32:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:59,656 INFO L225 Difference]: With dead ends: 7927 [2024-11-09 04:32:59,657 INFO L226 Difference]: Without dead ends: 7888 [2024-11-09 04:32:59,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:32:59,662 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 172 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:59,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 84 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:32:59,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7888 states. [2024-11-09 04:32:59,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7888 to 6913. [2024-11-09 04:32:59,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6913 states, 6904 states have (on average 3.1022595596755504) internal successors, (21418), 6912 states have internal predecessors, (21418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:59,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6913 states to 6913 states and 21418 transitions. [2024-11-09 04:32:59,864 INFO L78 Accepts]: Start accepts. Automaton has 6913 states and 21418 transitions. Word has length 61 [2024-11-09 04:32:59,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:59,865 INFO L471 AbstractCegarLoop]: Abstraction has 6913 states and 21418 transitions. [2024-11-09 04:32:59,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:32:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6913 states and 21418 transitions. [2024-11-09 04:32:59,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:32:59,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:59,870 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:59,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 04:32:59,871 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:32:59,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:59,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1108424799, now seen corresponding path program 7 times [2024-11-09 04:32:59,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:59,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547282428] [2024-11-09 04:32:59,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:59,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:00,544 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:00,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:00,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547282428] [2024-11-09 04:33:00,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547282428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:00,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:00,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:00,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410857279] [2024-11-09 04:33:00,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:00,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:00,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:00,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:00,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:00,547 INFO L87 Difference]: Start difference. First operand 6913 states and 21418 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:01,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:01,337 INFO L93 Difference]: Finished difference Result 7906 states and 23970 transitions. [2024-11-09 04:33:01,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:01,337 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:01,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:01,360 INFO L225 Difference]: With dead ends: 7906 [2024-11-09 04:33:01,360 INFO L226 Difference]: Without dead ends: 7867 [2024-11-09 04:33:01,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:33:01,363 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 169 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:01,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 83 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:01,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7867 states. [2024-11-09 04:33:01,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7867 to 6911. [2024-11-09 04:33:01,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6911 states, 6902 states have (on average 3.101854534917415) internal successors, (21409), 6910 states have internal predecessors, (21409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6911 states to 6911 states and 21409 transitions. [2024-11-09 04:33:01,545 INFO L78 Accepts]: Start accepts. Automaton has 6911 states and 21409 transitions. Word has length 61 [2024-11-09 04:33:01,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:01,546 INFO L471 AbstractCegarLoop]: Abstraction has 6911 states and 21409 transitions. [2024-11-09 04:33:01,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:01,546 INFO L276 IsEmpty]: Start isEmpty. Operand 6911 states and 21409 transitions. [2024-11-09 04:33:01,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:01,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:01,551 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:01,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 04:33:01,551 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:01,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:01,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1935897043, now seen corresponding path program 8 times [2024-11-09 04:33:01,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:01,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177871449] [2024-11-09 04:33:01,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:01,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:02,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:02,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177871449] [2024-11-09 04:33:02,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177871449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:02,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:02,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:02,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566443440] [2024-11-09 04:33:02,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:02,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:02,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:02,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:02,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:02,264 INFO L87 Difference]: Start difference. First operand 6911 states and 21409 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:03,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:03,054 INFO L93 Difference]: Finished difference Result 7965 states and 24124 transitions. [2024-11-09 04:33:03,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:03,054 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:03,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:03,077 INFO L225 Difference]: With dead ends: 7965 [2024-11-09 04:33:03,077 INFO L226 Difference]: Without dead ends: 7926 [2024-11-09 04:33:03,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:33:03,081 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 194 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:03,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 84 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:03,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7926 states. [2024-11-09 04:33:03,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7926 to 6915. [2024-11-09 04:33:03,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6915 states, 6906 states have (on average 3.102374746597162) internal successors, (21425), 6914 states have internal predecessors, (21425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:03,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6915 states to 6915 states and 21425 transitions. [2024-11-09 04:33:03,251 INFO L78 Accepts]: Start accepts. Automaton has 6915 states and 21425 transitions. Word has length 61 [2024-11-09 04:33:03,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:03,252 INFO L471 AbstractCegarLoop]: Abstraction has 6915 states and 21425 transitions. [2024-11-09 04:33:03,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:03,252 INFO L276 IsEmpty]: Start isEmpty. Operand 6915 states and 21425 transitions. [2024-11-09 04:33:03,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:03,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:03,256 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:03,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 04:33:03,257 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:03,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:03,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1693036717, now seen corresponding path program 9 times [2024-11-09 04:33:03,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:03,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138006929] [2024-11-09 04:33:03,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:03,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:03,904 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:03,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:03,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138006929] [2024-11-09 04:33:03,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138006929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:03,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:03,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:03,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583158638] [2024-11-09 04:33:03,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:03,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:03,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:03,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:03,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:03,907 INFO L87 Difference]: Start difference. First operand 6915 states and 21425 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:04,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:04,734 INFO L93 Difference]: Finished difference Result 7962 states and 24120 transitions. [2024-11-09 04:33:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:04,734 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:04,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:04,759 INFO L225 Difference]: With dead ends: 7962 [2024-11-09 04:33:04,759 INFO L226 Difference]: Without dead ends: 7923 [2024-11-09 04:33:04,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:33:04,763 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 169 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:04,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 100 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7923 states. [2024-11-09 04:33:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7923 to 6913. [2024-11-09 04:33:04,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6913 states, 6904 states have (on average 3.1019698725376594) internal successors, (21416), 6912 states have internal predecessors, (21416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:04,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6913 states to 6913 states and 21416 transitions. [2024-11-09 04:33:04,960 INFO L78 Accepts]: Start accepts. Automaton has 6913 states and 21416 transitions. Word has length 61 [2024-11-09 04:33:04,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:04,960 INFO L471 AbstractCegarLoop]: Abstraction has 6913 states and 21416 transitions. [2024-11-09 04:33:04,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:04,960 INFO L276 IsEmpty]: Start isEmpty. Operand 6913 states and 21416 transitions. [2024-11-09 04:33:04,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:04,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:04,963 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:04,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-09 04:33:04,963 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:04,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:04,964 INFO L85 PathProgramCache]: Analyzing trace with hash -637735157, now seen corresponding path program 10 times [2024-11-09 04:33:04,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:04,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426800750] [2024-11-09 04:33:04,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:04,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:05,617 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:05,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:05,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426800750] [2024-11-09 04:33:05,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426800750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:05,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:05,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261427945] [2024-11-09 04:33:05,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:05,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:05,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:05,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:05,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:05,620 INFO L87 Difference]: Start difference. First operand 6913 states and 21416 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:06,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:06,495 INFO L93 Difference]: Finished difference Result 7942 states and 24042 transitions. [2024-11-09 04:33:06,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:33:06,496 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:06,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:06,531 INFO L225 Difference]: With dead ends: 7942 [2024-11-09 04:33:06,532 INFO L226 Difference]: Without dead ends: 7903 [2024-11-09 04:33:06,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:33:06,537 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 181 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:06,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 87 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:06,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7903 states. [2024-11-09 04:33:06,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7903 to 6911. [2024-11-09 04:33:06,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6911 states, 6902 states have (on average 3.101854534917415) internal successors, (21409), 6910 states have internal predecessors, (21409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6911 states to 6911 states and 21409 transitions. [2024-11-09 04:33:06,717 INFO L78 Accepts]: Start accepts. Automaton has 6911 states and 21409 transitions. Word has length 61 [2024-11-09 04:33:06,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:06,717 INFO L471 AbstractCegarLoop]: Abstraction has 6911 states and 21409 transitions. [2024-11-09 04:33:06,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:06,718 INFO L276 IsEmpty]: Start isEmpty. Operand 6911 states and 21409 transitions. [2024-11-09 04:33:06,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:06,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:06,721 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:06,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-09 04:33:06,721 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:06,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:06,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1133547441, now seen corresponding path program 11 times [2024-11-09 04:33:06,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:06,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970535279] [2024-11-09 04:33:06,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:06,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:07,586 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:07,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:07,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970535279] [2024-11-09 04:33:07,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970535279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:07,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:07,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:07,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452878042] [2024-11-09 04:33:07,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:07,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:07,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:07,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:07,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:07,589 INFO L87 Difference]: Start difference. First operand 6911 states and 21409 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:08,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:08,647 INFO L93 Difference]: Finished difference Result 8063 states and 24329 transitions. [2024-11-09 04:33:08,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:33:08,648 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:08,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:08,671 INFO L225 Difference]: With dead ends: 8063 [2024-11-09 04:33:08,671 INFO L226 Difference]: Without dead ends: 8024 [2024-11-09 04:33:08,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:33:08,674 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 223 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:08,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 96 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:33:08,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8024 states. [2024-11-09 04:33:08,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8024 to 6950. [2024-11-09 04:33:08,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6950 states, 6941 states have (on average 3.098256735340729) internal successors, (21505), 6949 states have internal predecessors, (21505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:08,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 21505 transitions. [2024-11-09 04:33:08,818 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 21505 transitions. Word has length 61 [2024-11-09 04:33:08,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:08,819 INFO L471 AbstractCegarLoop]: Abstraction has 6950 states and 21505 transitions. [2024-11-09 04:33:08,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:08,819 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 21505 transitions. [2024-11-09 04:33:08,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:08,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:08,821 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:08,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-09 04:33:08,821 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:08,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:08,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2034024849, now seen corresponding path program 12 times [2024-11-09 04:33:08,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:08,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906416597] [2024-11-09 04:33:08,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:08,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:09,460 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:09,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:09,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906416597] [2024-11-09 04:33:09,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906416597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:09,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:09,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:09,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119979548] [2024-11-09 04:33:09,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:09,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:09,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:09,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:09,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:09,465 INFO L87 Difference]: Start difference. First operand 6950 states and 21505 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:10,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:10,391 INFO L93 Difference]: Finished difference Result 8093 states and 24443 transitions. [2024-11-09 04:33:10,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:33:10,392 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:10,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:10,415 INFO L225 Difference]: With dead ends: 8093 [2024-11-09 04:33:10,415 INFO L226 Difference]: Without dead ends: 8054 [2024-11-09 04:33:10,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:33:10,418 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 196 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:10,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 87 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:10,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8054 states. [2024-11-09 04:33:10,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8054 to 6952. [2024-11-09 04:33:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6952 states, 6943 states have (on average 3.0983724614719863) internal successors, (21512), 6951 states have internal predecessors, (21512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:10,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6952 states to 6952 states and 21512 transitions. [2024-11-09 04:33:10,556 INFO L78 Accepts]: Start accepts. Automaton has 6952 states and 21512 transitions. Word has length 61 [2024-11-09 04:33:10,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:10,557 INFO L471 AbstractCegarLoop]: Abstraction has 6952 states and 21512 transitions. [2024-11-09 04:33:10,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:10,557 INFO L276 IsEmpty]: Start isEmpty. Operand 6952 states and 21512 transitions. [2024-11-09 04:33:10,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:10,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:10,559 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:10,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-09 04:33:10,560 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:10,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:10,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1698236649, now seen corresponding path program 13 times [2024-11-09 04:33:10,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:10,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511327776] [2024-11-09 04:33:10,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:10,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:11,224 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:11,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:11,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511327776] [2024-11-09 04:33:11,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511327776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:11,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:11,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:11,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895333803] [2024-11-09 04:33:11,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:11,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:11,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:11,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:11,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:11,227 INFO L87 Difference]: Start difference. First operand 6952 states and 21512 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:12,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:12,129 INFO L93 Difference]: Finished difference Result 8048 states and 24334 transitions. [2024-11-09 04:33:12,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:12,130 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:12,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:12,168 INFO L225 Difference]: With dead ends: 8048 [2024-11-09 04:33:12,168 INFO L226 Difference]: Without dead ends: 8009 [2024-11-09 04:33:12,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:33:12,173 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 176 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:12,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 97 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:12,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8009 states. [2024-11-09 04:33:12,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8009 to 6954. [2024-11-09 04:33:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6954 states, 6945 states have (on average 3.0987760979121672) internal successors, (21521), 6953 states have internal predecessors, (21521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:12,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6954 states to 6954 states and 21521 transitions. [2024-11-09 04:33:12,323 INFO L78 Accepts]: Start accepts. Automaton has 6954 states and 21521 transitions. Word has length 61 [2024-11-09 04:33:12,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:12,323 INFO L471 AbstractCegarLoop]: Abstraction has 6954 states and 21521 transitions. [2024-11-09 04:33:12,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:12,323 INFO L276 IsEmpty]: Start isEmpty. Operand 6954 states and 21521 transitions. [2024-11-09 04:33:12,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:12,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:12,326 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:12,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-09 04:33:12,326 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:12,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:12,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1032203113, now seen corresponding path program 14 times [2024-11-09 04:33:12,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:12,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446539445] [2024-11-09 04:33:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:12,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:13,003 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:13,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:13,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446539445] [2024-11-09 04:33:13,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446539445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:13,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:13,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:13,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517690188] [2024-11-09 04:33:13,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:13,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:13,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:13,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:13,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:13,005 INFO L87 Difference]: Start difference. First operand 6954 states and 21521 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:13,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:13,822 INFO L93 Difference]: Finished difference Result 8027 states and 24283 transitions. [2024-11-09 04:33:13,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:13,822 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:13,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:13,844 INFO L225 Difference]: With dead ends: 8027 [2024-11-09 04:33:13,844 INFO L226 Difference]: Without dead ends: 7988 [2024-11-09 04:33:13,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:33:13,848 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 185 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:13,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 105 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:13,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7988 states. [2024-11-09 04:33:13,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7988 to 6950. [2024-11-09 04:33:13,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6950 states, 6941 states have (on average 3.098256735340729) internal successors, (21505), 6949 states have internal predecessors, (21505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:13,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 21505 transitions. [2024-11-09 04:33:13,985 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 21505 transitions. Word has length 61 [2024-11-09 04:33:13,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:13,986 INFO L471 AbstractCegarLoop]: Abstraction has 6950 states and 21505 transitions. [2024-11-09 04:33:13,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:13,986 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 21505 transitions. [2024-11-09 04:33:13,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:13,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:13,989 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:13,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-09 04:33:13,989 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:13,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:13,989 INFO L85 PathProgramCache]: Analyzing trace with hash -653439431, now seen corresponding path program 15 times [2024-11-09 04:33:13,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:13,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028866895] [2024-11-09 04:33:13,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:13,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:14,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:14,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028866895] [2024-11-09 04:33:14,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028866895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:14,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:14,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:14,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970782509] [2024-11-09 04:33:14,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:14,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:14,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:14,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:14,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:14,597 INFO L87 Difference]: Start difference. First operand 6950 states and 21505 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:15,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:15,378 INFO L93 Difference]: Finished difference Result 8135 states and 24556 transitions. [2024-11-09 04:33:15,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:33:15,378 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:15,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:15,403 INFO L225 Difference]: With dead ends: 8135 [2024-11-09 04:33:15,403 INFO L226 Difference]: Without dead ends: 8096 [2024-11-09 04:33:15,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:33:15,406 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 200 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:15,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 85 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:15,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2024-11-09 04:33:15,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 6954. [2024-11-09 04:33:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6954 states, 6945 states have (on average 3.098200143988481) internal successors, (21517), 6953 states have internal predecessors, (21517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:15,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6954 states to 6954 states and 21517 transitions. [2024-11-09 04:33:15,589 INFO L78 Accepts]: Start accepts. Automaton has 6954 states and 21517 transitions. Word has length 61 [2024-11-09 04:33:15,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:15,590 INFO L471 AbstractCegarLoop]: Abstraction has 6954 states and 21517 transitions. [2024-11-09 04:33:15,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:15,590 INFO L276 IsEmpty]: Start isEmpty. Operand 6954 states and 21517 transitions. [2024-11-09 04:33:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:15,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:15,593 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:15,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-09 04:33:15,594 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:15,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:15,595 INFO L85 PathProgramCache]: Analyzing trace with hash -90733633, now seen corresponding path program 16 times [2024-11-09 04:33:15,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:15,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873102926] [2024-11-09 04:33:15,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:15,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:16,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:16,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873102926] [2024-11-09 04:33:16,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873102926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:16,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:16,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:16,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495869398] [2024-11-09 04:33:16,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:16,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:16,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:16,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:16,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:16,226 INFO L87 Difference]: Start difference. First operand 6954 states and 21517 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:16,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:16,928 INFO L93 Difference]: Finished difference Result 8150 states and 24617 transitions. [2024-11-09 04:33:16,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:16,929 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:16,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:16,954 INFO L225 Difference]: With dead ends: 8150 [2024-11-09 04:33:16,954 INFO L226 Difference]: Without dead ends: 8111 [2024-11-09 04:33:16,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:33:16,958 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 169 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:16,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 90 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:16,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8111 states. [2024-11-09 04:33:17,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8111 to 6956. [2024-11-09 04:33:17,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6947 states have (on average 3.098603713833309) internal successors, (21526), 6955 states have internal predecessors, (21526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:17,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 21526 transitions. [2024-11-09 04:33:17,094 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 21526 transitions. Word has length 61 [2024-11-09 04:33:17,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:17,095 INFO L471 AbstractCegarLoop]: Abstraction has 6956 states and 21526 transitions. [2024-11-09 04:33:17,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 21526 transitions. [2024-11-09 04:33:17,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:17,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:17,099 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:17,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-09 04:33:17,100 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:17,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:17,100 INFO L85 PathProgramCache]: Analyzing trace with hash 575299903, now seen corresponding path program 17 times [2024-11-09 04:33:17,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:17,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623188289] [2024-11-09 04:33:17,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:17,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:17,642 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:17,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:17,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623188289] [2024-11-09 04:33:17,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623188289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:17,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:17,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:17,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028841402] [2024-11-09 04:33:17,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:17,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:17,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:17,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:17,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:17,648 INFO L87 Difference]: Start difference. First operand 6956 states and 21526 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:18,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:18,447 INFO L93 Difference]: Finished difference Result 8129 states and 24566 transitions. [2024-11-09 04:33:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:18,448 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:18,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:18,479 INFO L225 Difference]: With dead ends: 8129 [2024-11-09 04:33:18,479 INFO L226 Difference]: Without dead ends: 8090 [2024-11-09 04:33:18,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:33:18,483 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 183 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:18,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 96 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:18,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8090 states. [2024-11-09 04:33:18,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8090 to 6952. [2024-11-09 04:33:18,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6952 states, 6943 states have (on average 3.0980844015555236) internal successors, (21510), 6951 states have internal predecessors, (21510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:18,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6952 states to 6952 states and 21510 transitions. [2024-11-09 04:33:18,683 INFO L78 Accepts]: Start accepts. Automaton has 6952 states and 21510 transitions. Word has length 61 [2024-11-09 04:33:18,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:18,684 INFO L471 AbstractCegarLoop]: Abstraction has 6952 states and 21510 transitions. [2024-11-09 04:33:18,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:18,684 INFO L276 IsEmpty]: Start isEmpty. Operand 6952 states and 21510 transitions. [2024-11-09 04:33:18,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:18,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:18,687 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:18,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-09 04:33:18,688 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:18,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:18,688 INFO L85 PathProgramCache]: Analyzing trace with hash -675345551, now seen corresponding path program 18 times [2024-11-09 04:33:18,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:18,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624400314] [2024-11-09 04:33:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:18,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:19,271 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:19,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:19,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624400314] [2024-11-09 04:33:19,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624400314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:19,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:19,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:19,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904262972] [2024-11-09 04:33:19,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:19,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:19,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:19,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:19,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:19,273 INFO L87 Difference]: Start difference. First operand 6952 states and 21510 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:19,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:19,919 INFO L93 Difference]: Finished difference Result 8082 states and 24425 transitions. [2024-11-09 04:33:19,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:19,919 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:19,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:19,943 INFO L225 Difference]: With dead ends: 8082 [2024-11-09 04:33:19,943 INFO L226 Difference]: Without dead ends: 8043 [2024-11-09 04:33:19,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:33:19,947 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 182 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:19,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 85 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:33:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8043 states. [2024-11-09 04:33:20,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8043 to 6956. [2024-11-09 04:33:20,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6947 states have (on average 3.098603713833309) internal successors, (21526), 6955 states have internal predecessors, (21526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:20,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 21526 transitions. [2024-11-09 04:33:20,079 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 21526 transitions. Word has length 61 [2024-11-09 04:33:20,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:20,079 INFO L471 AbstractCegarLoop]: Abstraction has 6956 states and 21526 transitions. [2024-11-09 04:33:20,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:20,079 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 21526 transitions. [2024-11-09 04:33:20,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:20,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:20,082 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:20,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-09 04:33:20,083 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:20,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:20,083 INFO L85 PathProgramCache]: Analyzing trace with hash -9312015, now seen corresponding path program 19 times [2024-11-09 04:33:20,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:20,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845999562] [2024-11-09 04:33:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:20,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:20,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:20,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845999562] [2024-11-09 04:33:20,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845999562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:20,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:20,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:20,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527850171] [2024-11-09 04:33:20,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:20,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:20,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:20,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:20,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:20,529 INFO L87 Difference]: Start difference. First operand 6956 states and 21526 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:21,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:21,182 INFO L93 Difference]: Finished difference Result 8079 states and 24421 transitions. [2024-11-09 04:33:21,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:21,183 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:21,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:21,208 INFO L225 Difference]: With dead ends: 8079 [2024-11-09 04:33:21,208 INFO L226 Difference]: Without dead ends: 8040 [2024-11-09 04:33:21,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:33:21,212 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 179 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:21,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 87 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:33:21,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8040 states. [2024-11-09 04:33:21,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8040 to 6954. [2024-11-09 04:33:21,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6954 states, 6945 states have (on average 3.098200143988481) internal successors, (21517), 6953 states have internal predecessors, (21517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:21,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6954 states to 6954 states and 21517 transitions. [2024-11-09 04:33:21,355 INFO L78 Accepts]: Start accepts. Automaton has 6954 states and 21517 transitions. Word has length 61 [2024-11-09 04:33:21,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:21,356 INFO L471 AbstractCegarLoop]: Abstraction has 6954 states and 21517 transitions. [2024-11-09 04:33:21,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:21,356 INFO L276 IsEmpty]: Start isEmpty. Operand 6954 states and 21517 transitions. [2024-11-09 04:33:21,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:21,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:21,359 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:21,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-09 04:33:21,359 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:21,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:21,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1045989545, now seen corresponding path program 20 times [2024-11-09 04:33:21,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:21,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115334653] [2024-11-09 04:33:21,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:21,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:21,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:21,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115334653] [2024-11-09 04:33:21,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115334653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:21,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:21,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:21,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896746071] [2024-11-09 04:33:21,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:21,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:21,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:21,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:21,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:21,870 INFO L87 Difference]: Start difference. First operand 6954 states and 21517 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:22,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:22,644 INFO L93 Difference]: Finished difference Result 8053 states and 24326 transitions. [2024-11-09 04:33:22,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:33:22,645 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:22,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:22,682 INFO L225 Difference]: With dead ends: 8053 [2024-11-09 04:33:22,683 INFO L226 Difference]: Without dead ends: 8014 [2024-11-09 04:33:22,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:33:22,692 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 188 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:22,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 106 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:22,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8014 states. [2024-11-09 04:33:22,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8014 to 6950. [2024-11-09 04:33:22,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6950 states, 6941 states have (on average 3.098256735340729) internal successors, (21505), 6949 states have internal predecessors, (21505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:22,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 21505 transitions. [2024-11-09 04:33:22,850 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 21505 transitions. Word has length 61 [2024-11-09 04:33:22,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:22,851 INFO L471 AbstractCegarLoop]: Abstraction has 6950 states and 21505 transitions. [2024-11-09 04:33:22,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:22,851 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 21505 transitions. [2024-11-09 04:33:22,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:22,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:22,854 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:22,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-09 04:33:22,855 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:22,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:22,855 INFO L85 PathProgramCache]: Analyzing trace with hash 914292093, now seen corresponding path program 21 times [2024-11-09 04:33:22,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:22,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048070543] [2024-11-09 04:33:22,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:22,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:23,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:23,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048070543] [2024-11-09 04:33:23,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048070543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:23,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:23,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:23,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954671744] [2024-11-09 04:33:23,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:23,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:23,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:23,456 INFO L87 Difference]: Start difference. First operand 6950 states and 21505 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:24,465 INFO L93 Difference]: Finished difference Result 7920 states and 23970 transitions. [2024-11-09 04:33:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:33:24,466 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:24,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:24,488 INFO L225 Difference]: With dead ends: 7920 [2024-11-09 04:33:24,488 INFO L226 Difference]: Without dead ends: 7881 [2024-11-09 04:33:24,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:33:24,492 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 213 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:24,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 120 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:24,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7881 states. [2024-11-09 04:33:24,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7881 to 6962. [2024-11-09 04:33:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6953 states have (on average 3.0980871566230404) internal successors, (21541), 6961 states have internal predecessors, (21541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:24,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 21541 transitions. [2024-11-09 04:33:24,626 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 21541 transitions. Word has length 61 [2024-11-09 04:33:24,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:24,626 INFO L471 AbstractCegarLoop]: Abstraction has 6962 states and 21541 transitions. [2024-11-09 04:33:24,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:24,626 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 21541 transitions. [2024-11-09 04:33:24,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:24,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:24,628 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:24,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-09 04:33:24,629 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:24,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:24,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1814769501, now seen corresponding path program 22 times [2024-11-09 04:33:24,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:24,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874545379] [2024-11-09 04:33:24,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:24,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:25,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:25,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874545379] [2024-11-09 04:33:25,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874545379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:25,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:25,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:25,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663782855] [2024-11-09 04:33:25,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:25,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:25,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:25,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:25,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:25,221 INFO L87 Difference]: Start difference. First operand 6962 states and 21541 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:26,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:26,159 INFO L93 Difference]: Finished difference Result 7929 states and 24039 transitions. [2024-11-09 04:33:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:33:26,160 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:26,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:26,185 INFO L225 Difference]: With dead ends: 7929 [2024-11-09 04:33:26,185 INFO L226 Difference]: Without dead ends: 7890 [2024-11-09 04:33:26,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:33:26,188 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 191 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:26,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 106 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:26,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7890 states. [2024-11-09 04:33:26,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7890 to 6964. [2024-11-09 04:33:26,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6964 states, 6955 states have (on average 3.0982027318475915) internal successors, (21548), 6963 states have internal predecessors, (21548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6964 states to 6964 states and 21548 transitions. [2024-11-09 04:33:26,318 INFO L78 Accepts]: Start accepts. Automaton has 6964 states and 21548 transitions. Word has length 61 [2024-11-09 04:33:26,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:26,319 INFO L471 AbstractCegarLoop]: Abstraction has 6964 states and 21548 transitions. [2024-11-09 04:33:26,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:26,319 INFO L276 IsEmpty]: Start isEmpty. Operand 6964 states and 21548 transitions. [2024-11-09 04:33:26,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:26,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:26,322 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:26,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-09 04:33:26,322 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:26,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:26,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1917491997, now seen corresponding path program 23 times [2024-11-09 04:33:26,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:26,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905850400] [2024-11-09 04:33:26,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:26,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:26,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:26,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905850400] [2024-11-09 04:33:26,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905850400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:26,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:26,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:26,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988486161] [2024-11-09 04:33:26,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:26,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:26,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:26,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:26,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:26,991 INFO L87 Difference]: Start difference. First operand 6964 states and 21548 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:27,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:27,786 INFO L93 Difference]: Finished difference Result 7884 states and 23930 transitions. [2024-11-09 04:33:27,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:27,787 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:27,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:27,814 INFO L225 Difference]: With dead ends: 7884 [2024-11-09 04:33:27,814 INFO L226 Difference]: Without dead ends: 7845 [2024-11-09 04:33:27,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:33:27,818 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 172 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:27,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 144 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:27,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7845 states. [2024-11-09 04:33:27,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7845 to 6966. [2024-11-09 04:33:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6966 states, 6957 states have (on average 3.0986057208566913) internal successors, (21557), 6965 states have internal predecessors, (21557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6966 states to 6966 states and 21557 transitions. [2024-11-09 04:33:27,948 INFO L78 Accepts]: Start accepts. Automaton has 6966 states and 21557 transitions. Word has length 61 [2024-11-09 04:33:27,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:27,948 INFO L471 AbstractCegarLoop]: Abstraction has 6966 states and 21557 transitions. [2024-11-09 04:33:27,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:27,948 INFO L276 IsEmpty]: Start isEmpty. Operand 6966 states and 21557 transitions. [2024-11-09 04:33:27,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:27,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:27,950 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:27,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-09 04:33:27,951 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:27,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:27,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1251458461, now seen corresponding path program 24 times [2024-11-09 04:33:27,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:27,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843120666] [2024-11-09 04:33:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:27,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:28,474 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:28,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:28,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843120666] [2024-11-09 04:33:28,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843120666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:28,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:28,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:28,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939006185] [2024-11-09 04:33:28,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:28,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:28,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:28,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:28,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:28,477 INFO L87 Difference]: Start difference. First operand 6966 states and 21557 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:29,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:29,262 INFO L93 Difference]: Finished difference Result 7863 states and 23879 transitions. [2024-11-09 04:33:29,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:29,263 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:29,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:29,288 INFO L225 Difference]: With dead ends: 7863 [2024-11-09 04:33:29,288 INFO L226 Difference]: Without dead ends: 7824 [2024-11-09 04:33:29,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:33:29,292 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 183 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:29,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 136 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:29,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7824 states. [2024-11-09 04:33:29,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7824 to 6956. [2024-11-09 04:33:29,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6947 states have (on average 3.097740031668346) internal successors, (21520), 6955 states have internal predecessors, (21520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:29,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 21520 transitions. [2024-11-09 04:33:29,422 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 21520 transitions. Word has length 61 [2024-11-09 04:33:29,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:29,423 INFO L471 AbstractCegarLoop]: Abstraction has 6956 states and 21520 transitions. [2024-11-09 04:33:29,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:29,423 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 21520 transitions. [2024-11-09 04:33:29,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:29,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:29,425 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:29,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-09 04:33:29,426 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:29,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:29,426 INFO L85 PathProgramCache]: Analyzing trace with hash -804891937, now seen corresponding path program 25 times [2024-11-09 04:33:29,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:29,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501915131] [2024-11-09 04:33:29,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:29,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:30,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:30,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501915131] [2024-11-09 04:33:30,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501915131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:30,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:30,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:30,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775362436] [2024-11-09 04:33:30,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:30,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:30,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:30,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:30,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:30,146 INFO L87 Difference]: Start difference. First operand 6956 states and 21520 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:31,071 INFO L93 Difference]: Finished difference Result 7817 states and 23733 transitions. [2024-11-09 04:33:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:33:31,072 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:31,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:31,103 INFO L225 Difference]: With dead ends: 7817 [2024-11-09 04:33:31,103 INFO L226 Difference]: Without dead ends: 7778 [2024-11-09 04:33:31,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:33:31,107 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 169 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:31,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 112 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:31,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7778 states. [2024-11-09 04:33:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7778 to 6960. [2024-11-09 04:33:31,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6960 states, 6951 states have (on average 3.097683786505539) internal successors, (21532), 6959 states have internal predecessors, (21532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 21532 transitions. [2024-11-09 04:33:31,301 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 21532 transitions. Word has length 61 [2024-11-09 04:33:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:31,302 INFO L471 AbstractCegarLoop]: Abstraction has 6960 states and 21532 transitions. [2024-11-09 04:33:31,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 21532 transitions. [2024-11-09 04:33:31,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:31,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:31,305 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:31,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-09 04:33:31,305 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:31,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:31,306 INFO L85 PathProgramCache]: Analyzing trace with hash -242186139, now seen corresponding path program 26 times [2024-11-09 04:33:31,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:31,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775305675] [2024-11-09 04:33:31,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:31,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:31,776 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:31,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:31,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775305675] [2024-11-09 04:33:31,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775305675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:31,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:31,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:31,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118007090] [2024-11-09 04:33:31,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:31,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:31,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:31,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:31,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:31,778 INFO L87 Difference]: Start difference. First operand 6960 states and 21532 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:32,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:32,679 INFO L93 Difference]: Finished difference Result 7832 states and 23794 transitions. [2024-11-09 04:33:32,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:32,680 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:32,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:32,715 INFO L225 Difference]: With dead ends: 7832 [2024-11-09 04:33:32,716 INFO L226 Difference]: Without dead ends: 7793 [2024-11-09 04:33:32,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:33:32,721 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 161 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:32,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 128 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:32,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7793 states. [2024-11-09 04:33:32,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7793 to 6962. [2024-11-09 04:33:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6953 states have (on average 3.0980871566230404) internal successors, (21541), 6961 states have internal predecessors, (21541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:32,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 21541 transitions. [2024-11-09 04:33:32,918 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 21541 transitions. Word has length 61 [2024-11-09 04:33:32,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:32,918 INFO L471 AbstractCegarLoop]: Abstraction has 6962 states and 21541 transitions. [2024-11-09 04:33:32,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:32,919 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 21541 transitions. [2024-11-09 04:33:32,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:32,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:32,922 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:32,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-09 04:33:32,922 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:32,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:32,923 INFO L85 PathProgramCache]: Analyzing trace with hash 423847397, now seen corresponding path program 27 times [2024-11-09 04:33:32,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:32,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999285359] [2024-11-09 04:33:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:32,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:33,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:33,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999285359] [2024-11-09 04:33:33,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999285359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:33,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:33,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:33,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228715061] [2024-11-09 04:33:33,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:33,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:33,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:33,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:33,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:33,518 INFO L87 Difference]: Start difference. First operand 6962 states and 21541 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:34,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:34,439 INFO L93 Difference]: Finished difference Result 7811 states and 23743 transitions. [2024-11-09 04:33:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:34,439 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:34,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:34,460 INFO L225 Difference]: With dead ends: 7811 [2024-11-09 04:33:34,460 INFO L226 Difference]: Without dead ends: 7772 [2024-11-09 04:33:34,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:33:34,463 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 169 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:34,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 129 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:34,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7772 states. [2024-11-09 04:33:34,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7772 to 6958. [2024-11-09 04:33:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6958 states, 6949 states have (on average 3.097567995395021) internal successors, (21525), 6957 states have internal predecessors, (21525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:34,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6958 states to 6958 states and 21525 transitions. [2024-11-09 04:33:34,588 INFO L78 Accepts]: Start accepts. Automaton has 6958 states and 21525 transitions. Word has length 61 [2024-11-09 04:33:34,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:34,588 INFO L471 AbstractCegarLoop]: Abstraction has 6958 states and 21525 transitions. [2024-11-09 04:33:34,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:34,588 INFO L276 IsEmpty]: Start isEmpty. Operand 6958 states and 21525 transitions. [2024-11-09 04:33:34,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:34,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:34,591 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:34,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-09 04:33:34,591 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:34,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:34,591 INFO L85 PathProgramCache]: Analyzing trace with hash -826798057, now seen corresponding path program 28 times [2024-11-09 04:33:34,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:34,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933207886] [2024-11-09 04:33:34,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:34,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:35,077 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:35,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:35,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933207886] [2024-11-09 04:33:35,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933207886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:35,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:35,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:35,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918863434] [2024-11-09 04:33:35,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:35,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:35,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:35,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:35,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:35,080 INFO L87 Difference]: Start difference. First operand 6958 states and 21525 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:35,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:35,985 INFO L93 Difference]: Finished difference Result 7743 states and 23557 transitions. [2024-11-09 04:33:35,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 04:33:35,986 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:35,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:36,010 INFO L225 Difference]: With dead ends: 7743 [2024-11-09 04:33:36,010 INFO L226 Difference]: Without dead ends: 7704 [2024-11-09 04:33:36,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-09 04:33:36,013 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 195 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:36,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 147 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:36,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7704 states. [2024-11-09 04:33:36,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7704 to 6962. [2024-11-09 04:33:36,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6953 states have (on average 3.0980871566230404) internal successors, (21541), 6961 states have internal predecessors, (21541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:36,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 21541 transitions. [2024-11-09 04:33:36,144 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 21541 transitions. Word has length 61 [2024-11-09 04:33:36,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:36,145 INFO L471 AbstractCegarLoop]: Abstraction has 6962 states and 21541 transitions. [2024-11-09 04:33:36,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 21541 transitions. [2024-11-09 04:33:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:36,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:36,148 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:36,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-09 04:33:36,148 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:36,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:36,148 INFO L85 PathProgramCache]: Analyzing trace with hash -160764521, now seen corresponding path program 29 times [2024-11-09 04:33:36,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:36,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775279964] [2024-11-09 04:33:36,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:36,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:36,733 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:36,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:36,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775279964] [2024-11-09 04:33:36,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775279964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:36,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:36,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:36,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103549945] [2024-11-09 04:33:36,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:36,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:36,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:36,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:36,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:36,736 INFO L87 Difference]: Start difference. First operand 6962 states and 21541 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:37,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:37,421 INFO L93 Difference]: Finished difference Result 7761 states and 23598 transitions. [2024-11-09 04:33:37,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:37,422 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:37,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:37,442 INFO L225 Difference]: With dead ends: 7761 [2024-11-09 04:33:37,443 INFO L226 Difference]: Without dead ends: 7722 [2024-11-09 04:33:37,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:33:37,446 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 165 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:37,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 116 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:33:37,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7722 states. [2024-11-09 04:33:37,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7722 to 6960. [2024-11-09 04:33:37,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6960 states, 6951 states have (on average 3.097683786505539) internal successors, (21532), 6959 states have internal predecessors, (21532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 21532 transitions. [2024-11-09 04:33:37,559 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 21532 transitions. Word has length 61 [2024-11-09 04:33:37,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:37,560 INFO L471 AbstractCegarLoop]: Abstraction has 6960 states and 21532 transitions. [2024-11-09 04:33:37,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:37,560 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 21532 transitions. [2024-11-09 04:33:37,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:37,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:37,562 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:37,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-09 04:33:37,563 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:37,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:37,563 INFO L85 PathProgramCache]: Analyzing trace with hash 894537039, now seen corresponding path program 30 times [2024-11-09 04:33:37,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:37,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217193957] [2024-11-09 04:33:37,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:37,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:38,148 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:38,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:38,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217193957] [2024-11-09 04:33:38,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217193957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:38,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:38,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:38,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549490597] [2024-11-09 04:33:38,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:38,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:38,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:38,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:38,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:38,151 INFO L87 Difference]: Start difference. First operand 6960 states and 21532 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:39,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:39,119 INFO L93 Difference]: Finished difference Result 7711 states and 23453 transitions. [2024-11-09 04:33:39,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 04:33:39,119 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:39,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:39,142 INFO L225 Difference]: With dead ends: 7711 [2024-11-09 04:33:39,142 INFO L226 Difference]: Without dead ends: 7672 [2024-11-09 04:33:39,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2024-11-09 04:33:39,146 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 195 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:39,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 163 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:39,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2024-11-09 04:33:39,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 6950. [2024-11-09 04:33:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6950 states, 6941 states have (on average 3.098256735340729) internal successors, (21505), 6949 states have internal predecessors, (21505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:39,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 21505 transitions. [2024-11-09 04:33:39,272 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 21505 transitions. Word has length 61 [2024-11-09 04:33:39,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:39,272 INFO L471 AbstractCegarLoop]: Abstraction has 6950 states and 21505 transitions. [2024-11-09 04:33:39,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:39,273 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 21505 transitions. [2024-11-09 04:33:39,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:39,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:39,275 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:39,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-09 04:33:39,275 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:39,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:39,275 INFO L85 PathProgramCache]: Analyzing trace with hash -540097575, now seen corresponding path program 31 times [2024-11-09 04:33:39,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:39,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110160169] [2024-11-09 04:33:39,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:39,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:39,825 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:39,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:39,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110160169] [2024-11-09 04:33:39,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110160169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:39,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:39,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:39,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669215730] [2024-11-09 04:33:39,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:39,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:39,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:39,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:39,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:39,827 INFO L87 Difference]: Start difference. First operand 6950 states and 21505 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:40,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:40,905 INFO L93 Difference]: Finished difference Result 7790 states and 23609 transitions. [2024-11-09 04:33:40,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:33:40,906 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:40,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:40,929 INFO L225 Difference]: With dead ends: 7790 [2024-11-09 04:33:40,929 INFO L226 Difference]: Without dead ends: 7751 [2024-11-09 04:33:40,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:33:40,933 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 223 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:40,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 168 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:33:40,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7751 states. [2024-11-09 04:33:41,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7751 to 6956. [2024-11-09 04:33:41,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6947 states have (on average 3.098603713833309) internal successors, (21526), 6955 states have internal predecessors, (21526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:41,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 21526 transitions. [2024-11-09 04:33:41,062 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 21526 transitions. Word has length 61 [2024-11-09 04:33:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:41,063 INFO L471 AbstractCegarLoop]: Abstraction has 6956 states and 21526 transitions. [2024-11-09 04:33:41,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 21526 transitions. [2024-11-09 04:33:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:41,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:41,065 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:41,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-09 04:33:41,065 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:41,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:41,066 INFO L85 PathProgramCache]: Analyzing trace with hash 360379833, now seen corresponding path program 32 times [2024-11-09 04:33:41,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:41,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395836510] [2024-11-09 04:33:41,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:41,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:41,644 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:41,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:41,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395836510] [2024-11-09 04:33:41,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395836510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:41,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:41,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:41,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988488280] [2024-11-09 04:33:41,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:41,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:41,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:41,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:41,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:41,646 INFO L87 Difference]: Start difference. First operand 6956 states and 21526 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:42,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:42,473 INFO L93 Difference]: Finished difference Result 7725 states and 23471 transitions. [2024-11-09 04:33:42,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:33:42,474 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:42,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:42,496 INFO L225 Difference]: With dead ends: 7725 [2024-11-09 04:33:42,496 INFO L226 Difference]: Without dead ends: 7686 [2024-11-09 04:33:42,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:33:42,500 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 199 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:42,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 137 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:42,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7686 states. [2024-11-09 04:33:42,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7686 to 6958. [2024-11-09 04:33:42,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6958 states, 6949 states have (on average 3.098719240178443) internal successors, (21533), 6957 states have internal predecessors, (21533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:42,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6958 states to 6958 states and 21533 transitions. [2024-11-09 04:33:42,692 INFO L78 Accepts]: Start accepts. Automaton has 6958 states and 21533 transitions. Word has length 61 [2024-11-09 04:33:42,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:42,692 INFO L471 AbstractCegarLoop]: Abstraction has 6958 states and 21533 transitions. [2024-11-09 04:33:42,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:42,692 INFO L276 IsEmpty]: Start isEmpty. Operand 6958 states and 21533 transitions. [2024-11-09 04:33:42,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:42,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:42,695 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:42,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-09 04:33:42,695 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:42,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:42,696 INFO L85 PathProgramCache]: Analyzing trace with hash 923085631, now seen corresponding path program 33 times [2024-11-09 04:33:42,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:42,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210630683] [2024-11-09 04:33:42,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:42,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:43,161 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:43,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:43,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210630683] [2024-11-09 04:33:43,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210630683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:43,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:43,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:43,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611364353] [2024-11-09 04:33:43,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:43,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:43,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:43,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:43,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:43,163 INFO L87 Difference]: Start difference. First operand 6958 states and 21533 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:43,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:43,922 INFO L93 Difference]: Finished difference Result 7680 states and 23362 transitions. [2024-11-09 04:33:43,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:43,923 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:43,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:43,946 INFO L225 Difference]: With dead ends: 7680 [2024-11-09 04:33:43,946 INFO L226 Difference]: Without dead ends: 7641 [2024-11-09 04:33:43,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:33:43,949 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 182 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:43,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 153 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:43,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7641 states. [2024-11-09 04:33:44,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7641 to 6960. [2024-11-09 04:33:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6960 states, 6951 states have (on average 3.0991224284275645) internal successors, (21542), 6959 states have internal predecessors, (21542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 21542 transitions. [2024-11-09 04:33:44,074 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 21542 transitions. Word has length 61 [2024-11-09 04:33:44,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:44,074 INFO L471 AbstractCegarLoop]: Abstraction has 6960 states and 21542 transitions. [2024-11-09 04:33:44,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:44,074 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 21542 transitions. [2024-11-09 04:33:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:44,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:44,077 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:44,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-09 04:33:44,077 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:44,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:44,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1589119167, now seen corresponding path program 34 times [2024-11-09 04:33:44,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:44,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590485192] [2024-11-09 04:33:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:44,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:44,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:44,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590485192] [2024-11-09 04:33:44,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590485192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:44,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:44,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:44,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491323664] [2024-11-09 04:33:44,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:44,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:44,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:44,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:44,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:44,650 INFO L87 Difference]: Start difference. First operand 6960 states and 21542 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:45,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:45,640 INFO L93 Difference]: Finished difference Result 7655 states and 23297 transitions. [2024-11-09 04:33:45,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:45,641 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:45,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:45,662 INFO L225 Difference]: With dead ends: 7655 [2024-11-09 04:33:45,662 INFO L226 Difference]: Without dead ends: 7616 [2024-11-09 04:33:45,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:33:45,665 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 181 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:45,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 189 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:45,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7616 states. [2024-11-09 04:33:45,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7616 to 6950. [2024-11-09 04:33:45,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6950 states, 6941 states have (on average 3.098256735340729) internal successors, (21505), 6949 states have internal predecessors, (21505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:45,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 21505 transitions. [2024-11-09 04:33:45,788 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 21505 transitions. Word has length 61 [2024-11-09 04:33:45,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:45,788 INFO L471 AbstractCegarLoop]: Abstraction has 6950 states and 21505 transitions. [2024-11-09 04:33:45,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:45,788 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 21505 transitions. [2024-11-09 04:33:45,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:45,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:45,790 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:45,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-09 04:33:45,791 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:45,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:45,791 INFO L85 PathProgramCache]: Analyzing trace with hash 611642783, now seen corresponding path program 35 times [2024-11-09 04:33:45,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:45,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628925598] [2024-11-09 04:33:45,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:45,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:46,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:46,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628925598] [2024-11-09 04:33:46,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628925598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:46,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:46,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:46,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628932473] [2024-11-09 04:33:46,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:46,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:46,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:46,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:46,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:46,315 INFO L87 Difference]: Start difference. First operand 6950 states and 21505 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:47,226 INFO L93 Difference]: Finished difference Result 7879 states and 23753 transitions. [2024-11-09 04:33:47,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 04:33:47,227 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:47,249 INFO L225 Difference]: With dead ends: 7879 [2024-11-09 04:33:47,249 INFO L226 Difference]: Without dead ends: 7840 [2024-11-09 04:33:47,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-11-09 04:33:47,252 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 237 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:47,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 226 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7840 states. [2024-11-09 04:33:47,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7840 to 6967. [2024-11-09 04:33:47,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6967 states, 6958 states have (on average 3.095573440643863) internal successors, (21539), 6966 states have internal predecessors, (21539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:47,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6967 states to 6967 states and 21539 transitions. [2024-11-09 04:33:47,384 INFO L78 Accepts]: Start accepts. Automaton has 6967 states and 21539 transitions. Word has length 61 [2024-11-09 04:33:47,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:47,384 INFO L471 AbstractCegarLoop]: Abstraction has 6967 states and 21539 transitions. [2024-11-09 04:33:47,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:47,385 INFO L276 IsEmpty]: Start isEmpty. Operand 6967 states and 21539 transitions. [2024-11-09 04:33:47,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:47,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:47,387 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:47,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-09 04:33:47,387 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:47,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:47,387 INFO L85 PathProgramCache]: Analyzing trace with hash -593648243, now seen corresponding path program 36 times [2024-11-09 04:33:47,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:47,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819652802] [2024-11-09 04:33:47,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:47,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:47,928 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:47,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:47,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819652802] [2024-11-09 04:33:47,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819652802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:47,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:47,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:47,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178339264] [2024-11-09 04:33:47,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:47,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:47,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:47,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:47,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:47,931 INFO L87 Difference]: Start difference. First operand 6967 states and 21539 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:48,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:48,804 INFO L93 Difference]: Finished difference Result 7747 states and 23513 transitions. [2024-11-09 04:33:48,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:33:48,805 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:48,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:48,827 INFO L225 Difference]: With dead ends: 7747 [2024-11-09 04:33:48,827 INFO L226 Difference]: Without dead ends: 7708 [2024-11-09 04:33:48,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:33:48,830 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 215 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:48,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 168 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:48,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7708 states. [2024-11-09 04:33:48,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7708 to 6973. [2024-11-09 04:33:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6973 states, 6964 states have (on average 3.0959218839747273) internal successors, (21560), 6972 states have internal predecessors, (21560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:49,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6973 states to 6973 states and 21560 transitions. [2024-11-09 04:33:49,021 INFO L78 Accepts]: Start accepts. Automaton has 6973 states and 21560 transitions. Word has length 61 [2024-11-09 04:33:49,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:49,022 INFO L471 AbstractCegarLoop]: Abstraction has 6973 states and 21560 transitions. [2024-11-09 04:33:49,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:49,022 INFO L276 IsEmpty]: Start isEmpty. Operand 6973 states and 21560 transitions. [2024-11-09 04:33:49,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:49,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:49,024 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:49,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-09 04:33:49,024 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:49,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:49,025 INFO L85 PathProgramCache]: Analyzing trace with hash -73314511, now seen corresponding path program 37 times [2024-11-09 04:33:49,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:49,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298768498] [2024-11-09 04:33:49,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:49,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:49,549 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:49,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:49,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298768498] [2024-11-09 04:33:49,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298768498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:49,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:49,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:49,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804304146] [2024-11-09 04:33:49,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:49,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:49,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:49,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:49,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:49,551 INFO L87 Difference]: Start difference. First operand 6973 states and 21560 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:50,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:50,312 INFO L93 Difference]: Finished difference Result 7631 states and 23243 transitions. [2024-11-09 04:33:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:50,313 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:50,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:50,334 INFO L225 Difference]: With dead ends: 7631 [2024-11-09 04:33:50,334 INFO L226 Difference]: Without dead ends: 7592 [2024-11-09 04:33:50,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:33:50,337 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 182 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:50,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 180 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:50,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2024-11-09 04:33:50,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 6977. [2024-11-09 04:33:50,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6977 states, 6968 states have (on average 3.0964408725602754) internal successors, (21576), 6976 states have internal predecessors, (21576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:50,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6977 states to 6977 states and 21576 transitions. [2024-11-09 04:33:50,452 INFO L78 Accepts]: Start accepts. Automaton has 6977 states and 21576 transitions. Word has length 61 [2024-11-09 04:33:50,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:50,452 INFO L471 AbstractCegarLoop]: Abstraction has 6977 states and 21576 transitions. [2024-11-09 04:33:50,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:50,452 INFO L276 IsEmpty]: Start isEmpty. Operand 6977 states and 21576 transitions. [2024-11-09 04:33:50,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:50,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:50,454 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:50,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-09 04:33:50,454 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:50,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:50,455 INFO L85 PathProgramCache]: Analyzing trace with hash 592719025, now seen corresponding path program 38 times [2024-11-09 04:33:50,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:50,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112232241] [2024-11-09 04:33:50,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:50,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:50,921 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:50,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:50,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112232241] [2024-11-09 04:33:50,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112232241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:50,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:50,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:50,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589053866] [2024-11-09 04:33:50,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:50,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:50,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:50,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:50,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:50,922 INFO L87 Difference]: Start difference. First operand 6977 states and 21576 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:51,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:51,658 INFO L93 Difference]: Finished difference Result 7643 states and 23274 transitions. [2024-11-09 04:33:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:33:51,659 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:51,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:51,677 INFO L225 Difference]: With dead ends: 7643 [2024-11-09 04:33:51,677 INFO L226 Difference]: Without dead ends: 7604 [2024-11-09 04:33:51,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:33:51,680 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 174 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:51,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 185 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:51,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7604 states. [2024-11-09 04:33:51,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7604 to 6975. [2024-11-09 04:33:51,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6975 states, 6966 states have (on average 3.09603789836348) internal successors, (21567), 6974 states have internal predecessors, (21567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 21567 transitions. [2024-11-09 04:33:51,792 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 21567 transitions. Word has length 61 [2024-11-09 04:33:51,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:51,793 INFO L471 AbstractCegarLoop]: Abstraction has 6975 states and 21567 transitions. [2024-11-09 04:33:51,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:51,793 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 21567 transitions. [2024-11-09 04:33:51,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:51,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:51,795 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:51,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-09 04:33:51,796 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:51,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:51,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1648020585, now seen corresponding path program 39 times [2024-11-09 04:33:51,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:51,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612865081] [2024-11-09 04:33:51,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:51,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:52,300 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:52,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:52,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612865081] [2024-11-09 04:33:52,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612865081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:52,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:52,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:52,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919966201] [2024-11-09 04:33:52,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:52,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:52,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:52,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:52,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:52,303 INFO L87 Difference]: Start difference. First operand 6975 states and 21567 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:53,173 INFO L93 Difference]: Finished difference Result 7683 states and 23364 transitions. [2024-11-09 04:33:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:33:53,173 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:53,195 INFO L225 Difference]: With dead ends: 7683 [2024-11-09 04:33:53,195 INFO L226 Difference]: Without dead ends: 7644 [2024-11-09 04:33:53,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:33:53,198 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 178 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:53,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 146 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7644 states. [2024-11-09 04:33:53,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7644 to 6967. [2024-11-09 04:33:53,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6967 states, 6958 states have (on average 3.095573440643863) internal successors, (21539), 6966 states have internal predecessors, (21539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:53,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6967 states to 6967 states and 21539 transitions. [2024-11-09 04:33:53,325 INFO L78 Accepts]: Start accepts. Automaton has 6967 states and 21539 transitions. Word has length 61 [2024-11-09 04:33:53,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:53,325 INFO L471 AbstractCegarLoop]: Abstraction has 6967 states and 21539 transitions. [2024-11-09 04:33:53,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:53,325 INFO L276 IsEmpty]: Start isEmpty. Operand 6967 states and 21539 transitions. [2024-11-09 04:33:53,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:53,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:53,327 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:53,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-09 04:33:53,328 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:53,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:53,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1840609549, now seen corresponding path program 40 times [2024-11-09 04:33:53,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:53,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804834289] [2024-11-09 04:33:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:53,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:53,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:53,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804834289] [2024-11-09 04:33:53,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804834289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:53,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:53,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:53,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072549324] [2024-11-09 04:33:53,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:53,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:53,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:53,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:53,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:53,741 INFO L87 Difference]: Start difference. First operand 6967 states and 21539 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:54,758 INFO L93 Difference]: Finished difference Result 7785 states and 23541 transitions. [2024-11-09 04:33:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 04:33:54,758 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:54,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:54,781 INFO L225 Difference]: With dead ends: 7785 [2024-11-09 04:33:54,781 INFO L226 Difference]: Without dead ends: 7746 [2024-11-09 04:33:54,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2024-11-09 04:33:54,785 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 262 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:54,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 232 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:54,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7746 states. [2024-11-09 04:33:54,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7746 to 6975. [2024-11-09 04:33:54,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6975 states, 6966 states have (on average 3.094602354292277) internal successors, (21557), 6974 states have internal predecessors, (21557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:54,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 21557 transitions. [2024-11-09 04:33:54,917 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 21557 transitions. Word has length 61 [2024-11-09 04:33:54,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:54,917 INFO L471 AbstractCegarLoop]: Abstraction has 6975 states and 21557 transitions. [2024-11-09 04:33:54,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:54,918 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 21557 transitions. [2024-11-09 04:33:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:54,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:54,920 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:54,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-09 04:33:54,920 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:54,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:54,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1604133325, now seen corresponding path program 41 times [2024-11-09 04:33:54,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:54,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138592208] [2024-11-09 04:33:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:54,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:55,369 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:55,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:55,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138592208] [2024-11-09 04:33:55,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138592208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:55,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:55,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:55,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750643073] [2024-11-09 04:33:55,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:55,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:55,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:55,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:55,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:55,370 INFO L87 Difference]: Start difference. First operand 6975 states and 21557 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:56,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:56,295 INFO L93 Difference]: Finished difference Result 7887 states and 23887 transitions. [2024-11-09 04:33:56,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:33:56,296 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:56,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:56,318 INFO L225 Difference]: With dead ends: 7887 [2024-11-09 04:33:56,318 INFO L226 Difference]: Without dead ends: 7848 [2024-11-09 04:33:56,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:33:56,322 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 200 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:56,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 140 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:33:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7848 states. [2024-11-09 04:33:56,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7848 to 6987. [2024-11-09 04:33:56,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6978 states have (on average 3.094439667526512) internal successors, (21593), 6986 states have internal predecessors, (21593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:56,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 21593 transitions. [2024-11-09 04:33:56,459 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 21593 transitions. Word has length 61 [2024-11-09 04:33:56,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:56,459 INFO L471 AbstractCegarLoop]: Abstraction has 6987 states and 21593 transitions. [2024-11-09 04:33:56,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:56,459 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 21593 transitions. [2024-11-09 04:33:56,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:56,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:56,462 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:56,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-09 04:33:56,462 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:56,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:56,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2124467057, now seen corresponding path program 42 times [2024-11-09 04:33:56,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:56,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871381632] [2024-11-09 04:33:56,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:56,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:56,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:56,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871381632] [2024-11-09 04:33:56,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871381632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:56,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:56,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:56,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183421914] [2024-11-09 04:33:56,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:56,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:56,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:56,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:56,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:56,878 INFO L87 Difference]: Start difference. First operand 6987 states and 21593 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:57,808 INFO L93 Difference]: Finished difference Result 7841 states and 23825 transitions. [2024-11-09 04:33:57,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:33:57,808 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:57,832 INFO L225 Difference]: With dead ends: 7841 [2024-11-09 04:33:57,832 INFO L226 Difference]: Without dead ends: 7802 [2024-11-09 04:33:57,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2024-11-09 04:33:57,835 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 207 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:57,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 176 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:57,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7802 states. [2024-11-09 04:33:57,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7802 to 6991. [2024-11-09 04:33:57,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6991 states, 6982 states have (on average 3.0949584646233173) internal successors, (21609), 6990 states have internal predecessors, (21609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6991 states to 6991 states and 21609 transitions. [2024-11-09 04:33:57,964 INFO L78 Accepts]: Start accepts. Automaton has 6991 states and 21609 transitions. Word has length 61 [2024-11-09 04:33:57,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:57,965 INFO L471 AbstractCegarLoop]: Abstraction has 6991 states and 21609 transitions. [2024-11-09 04:33:57,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:57,965 INFO L276 IsEmpty]: Start isEmpty. Operand 6991 states and 21609 transitions. [2024-11-09 04:33:57,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:57,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:57,967 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:57,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-09 04:33:57,967 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:57,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:57,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1504466703, now seen corresponding path program 43 times [2024-11-09 04:33:57,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:57,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59494258] [2024-11-09 04:33:57,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:57,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:58,417 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:33:58,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:58,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59494258] [2024-11-09 04:33:58,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59494258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:58,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:58,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:33:58,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429069472] [2024-11-09 04:33:58,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:58,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:33:58,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:58,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:33:58,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:33:58,419 INFO L87 Difference]: Start difference. First operand 6991 states and 21609 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:59,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:59,346 INFO L93 Difference]: Finished difference Result 7842 states and 23827 transitions. [2024-11-09 04:33:59,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:33:59,346 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:33:59,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:59,419 INFO L225 Difference]: With dead ends: 7842 [2024-11-09 04:33:59,419 INFO L226 Difference]: Without dead ends: 7803 [2024-11-09 04:33:59,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2024-11-09 04:33:59,421 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 195 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:59,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 136 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:33:59,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7803 states. [2024-11-09 04:33:59,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7803 to 6989. [2024-11-09 04:33:59,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6989 states, 6980 states have (on average 3.0945558739255015) internal successors, (21600), 6988 states have internal predecessors, (21600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:59,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6989 states to 6989 states and 21600 transitions. [2024-11-09 04:33:59,540 INFO L78 Accepts]: Start accepts. Automaton has 6989 states and 21600 transitions. Word has length 61 [2024-11-09 04:33:59,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:59,541 INFO L471 AbstractCegarLoop]: Abstraction has 6989 states and 21600 transitions. [2024-11-09 04:33:59,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:59,541 INFO L276 IsEmpty]: Start isEmpty. Operand 6989 states and 21600 transitions. [2024-11-09 04:33:59,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:33:59,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:59,544 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:59,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-09 04:33:59,544 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:33:59,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:59,545 INFO L85 PathProgramCache]: Analyzing trace with hash -449165143, now seen corresponding path program 44 times [2024-11-09 04:33:59,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:59,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225499774] [2024-11-09 04:33:59,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:59,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:00,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:00,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225499774] [2024-11-09 04:34:00,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225499774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:00,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:00,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:00,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215620588] [2024-11-09 04:34:00,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:00,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:00,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:00,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:00,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:00,050 INFO L87 Difference]: Start difference. First operand 6989 states and 21600 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:00,856 INFO L93 Difference]: Finished difference Result 7900 states and 23954 transitions. [2024-11-09 04:34:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:00,857 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:00,882 INFO L225 Difference]: With dead ends: 7900 [2024-11-09 04:34:00,882 INFO L226 Difference]: Without dead ends: 7861 [2024-11-09 04:34:00,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:34:00,885 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 179 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:00,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 113 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:34:00,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2024-11-09 04:34:00,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 6981. [2024-11-09 04:34:00,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6981 states, 6972 states have (on average 3.0940906483075157) internal successors, (21572), 6980 states have internal predecessors, (21572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6981 states to 6981 states and 21572 transitions. [2024-11-09 04:34:01,017 INFO L78 Accepts]: Start accepts. Automaton has 6981 states and 21572 transitions. Word has length 61 [2024-11-09 04:34:01,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:01,017 INFO L471 AbstractCegarLoop]: Abstraction has 6981 states and 21572 transitions. [2024-11-09 04:34:01,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 6981 states and 21572 transitions. [2024-11-09 04:34:01,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:01,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:01,020 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:01,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-09 04:34:01,021 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:01,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:01,021 INFO L85 PathProgramCache]: Analyzing trace with hash -81885153, now seen corresponding path program 45 times [2024-11-09 04:34:01,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:01,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330282732] [2024-11-09 04:34:01,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:01,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:01,433 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:01,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:01,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330282732] [2024-11-09 04:34:01,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330282732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:01,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:01,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:01,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222855610] [2024-11-09 04:34:01,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:01,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:01,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:01,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:01,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:01,435 INFO L87 Difference]: Start difference. First operand 6981 states and 21572 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:02,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:02,162 INFO L93 Difference]: Finished difference Result 7710 states and 23440 transitions. [2024-11-09 04:34:02,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:02,163 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:02,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:02,187 INFO L225 Difference]: With dead ends: 7710 [2024-11-09 04:34:02,187 INFO L226 Difference]: Without dead ends: 7671 [2024-11-09 04:34:02,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:34:02,190 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 171 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:02,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 126 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:02,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7671 states. [2024-11-09 04:34:02,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7671 to 6985. [2024-11-09 04:34:02,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6985 states, 6976 states have (on average 3.0940366972477062) internal successors, (21584), 6984 states have internal predecessors, (21584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:02,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6985 states to 6985 states and 21584 transitions. [2024-11-09 04:34:02,320 INFO L78 Accepts]: Start accepts. Automaton has 6985 states and 21584 transitions. Word has length 61 [2024-11-09 04:34:02,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:02,321 INFO L471 AbstractCegarLoop]: Abstraction has 6985 states and 21584 transitions. [2024-11-09 04:34:02,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:02,321 INFO L276 IsEmpty]: Start isEmpty. Operand 6985 states and 21584 transitions. [2024-11-09 04:34:02,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:02,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:02,324 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:02,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-09 04:34:02,324 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:02,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:02,324 INFO L85 PathProgramCache]: Analyzing trace with hash 480820645, now seen corresponding path program 46 times [2024-11-09 04:34:02,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:02,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462548409] [2024-11-09 04:34:02,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:02,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:02,986 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:02,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:02,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462548409] [2024-11-09 04:34:02,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462548409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:02,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:02,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:02,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445352405] [2024-11-09 04:34:02,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:02,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:02,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:02,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:02,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:02,989 INFO L87 Difference]: Start difference. First operand 6985 states and 21584 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:03,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:03,683 INFO L93 Difference]: Finished difference Result 7742 states and 23543 transitions. [2024-11-09 04:34:03,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:03,684 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:03,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:03,711 INFO L225 Difference]: With dead ends: 7742 [2024-11-09 04:34:03,711 INFO L226 Difference]: Without dead ends: 7703 [2024-11-09 04:34:03,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:34:03,715 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 149 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:03,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 130 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:03,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7703 states. [2024-11-09 04:34:03,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7703 to 6987. [2024-11-09 04:34:03,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6978 states have (on average 3.094439667526512) internal successors, (21593), 6986 states have internal predecessors, (21593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:03,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 21593 transitions. [2024-11-09 04:34:03,882 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 21593 transitions. Word has length 61 [2024-11-09 04:34:03,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:03,883 INFO L471 AbstractCegarLoop]: Abstraction has 6987 states and 21593 transitions. [2024-11-09 04:34:03,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:03,883 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 21593 transitions. [2024-11-09 04:34:03,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:03,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:03,885 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:03,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-09 04:34:03,885 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:03,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:03,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1146854181, now seen corresponding path program 47 times [2024-11-09 04:34:03,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:03,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601376629] [2024-11-09 04:34:03,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:03,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:04,280 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:04,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:04,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601376629] [2024-11-09 04:34:04,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601376629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:04,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:04,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:04,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386621148] [2024-11-09 04:34:04,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:04,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:04,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:04,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:04,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:04,281 INFO L87 Difference]: Start difference. First operand 6987 states and 21593 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:04,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:04,929 INFO L93 Difference]: Finished difference Result 7721 states and 23492 transitions. [2024-11-09 04:34:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:04,929 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:04,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:04,954 INFO L225 Difference]: With dead ends: 7721 [2024-11-09 04:34:04,954 INFO L226 Difference]: Without dead ends: 7682 [2024-11-09 04:34:04,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:34:04,957 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 157 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:04,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 152 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:04,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7682 states. [2024-11-09 04:34:05,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7682 to 6983. [2024-11-09 04:34:05,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6983 states, 6974 states have (on average 3.093920275308288) internal successors, (21577), 6982 states have internal predecessors, (21577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:05,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6983 states to 6983 states and 21577 transitions. [2024-11-09 04:34:05,088 INFO L78 Accepts]: Start accepts. Automaton has 6983 states and 21577 transitions. Word has length 61 [2024-11-09 04:34:05,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:05,088 INFO L471 AbstractCegarLoop]: Abstraction has 6983 states and 21577 transitions. [2024-11-09 04:34:05,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:05,088 INFO L276 IsEmpty]: Start isEmpty. Operand 6983 states and 21577 transitions. [2024-11-09 04:34:05,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:05,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:05,090 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:05,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-11-09 04:34:05,091 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:05,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:05,091 INFO L85 PathProgramCache]: Analyzing trace with hash -103791273, now seen corresponding path program 48 times [2024-11-09 04:34:05,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:05,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484167011] [2024-11-09 04:34:05,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:05,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:05,643 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:05,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:05,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484167011] [2024-11-09 04:34:05,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484167011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:05,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:05,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:05,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771686689] [2024-11-09 04:34:05,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:05,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:05,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:05,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:05,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:05,645 INFO L87 Difference]: Start difference. First operand 6983 states and 21577 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:06,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:06,413 INFO L93 Difference]: Finished difference Result 7755 states and 23589 transitions. [2024-11-09 04:34:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:34:06,414 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:06,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:06,438 INFO L225 Difference]: With dead ends: 7755 [2024-11-09 04:34:06,438 INFO L226 Difference]: Without dead ends: 7716 [2024-11-09 04:34:06,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:34:06,441 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 191 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:06,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 126 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:34:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7716 states. [2024-11-09 04:34:06,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7716 to 6987. [2024-11-09 04:34:06,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6978 states have (on average 3.094439667526512) internal successors, (21593), 6986 states have internal predecessors, (21593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:06,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 21593 transitions. [2024-11-09 04:34:06,647 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 21593 transitions. Word has length 61 [2024-11-09 04:34:06,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:06,647 INFO L471 AbstractCegarLoop]: Abstraction has 6987 states and 21593 transitions. [2024-11-09 04:34:06,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:06,648 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 21593 transitions. [2024-11-09 04:34:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:06,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:06,650 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:06,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-09 04:34:06,650 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:06,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:06,651 INFO L85 PathProgramCache]: Analyzing trace with hash 562242263, now seen corresponding path program 49 times [2024-11-09 04:34:06,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:06,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847317050] [2024-11-09 04:34:06,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:06,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:07,111 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:07,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:07,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847317050] [2024-11-09 04:34:07,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847317050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:07,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:07,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:07,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7140154] [2024-11-09 04:34:07,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:07,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:07,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:07,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:07,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:07,113 INFO L87 Difference]: Start difference. First operand 6987 states and 21593 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:07,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:07,911 INFO L93 Difference]: Finished difference Result 7775 states and 23635 transitions. [2024-11-09 04:34:07,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:07,912 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:07,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:07,933 INFO L225 Difference]: With dead ends: 7775 [2024-11-09 04:34:07,933 INFO L226 Difference]: Without dead ends: 7736 [2024-11-09 04:34:07,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:34:07,936 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 157 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:07,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 142 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:34:07,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7736 states. [2024-11-09 04:34:08,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7736 to 6985. [2024-11-09 04:34:08,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6985 states, 6976 states have (on average 3.0940366972477062) internal successors, (21584), 6984 states have internal predecessors, (21584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:08,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6985 states to 6985 states and 21584 transitions. [2024-11-09 04:34:08,067 INFO L78 Accepts]: Start accepts. Automaton has 6985 states and 21584 transitions. Word has length 61 [2024-11-09 04:34:08,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:08,067 INFO L471 AbstractCegarLoop]: Abstraction has 6985 states and 21584 transitions. [2024-11-09 04:34:08,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:08,068 INFO L276 IsEmpty]: Start isEmpty. Operand 6985 states and 21584 transitions. [2024-11-09 04:34:08,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:08,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:08,070 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:08,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-09 04:34:08,070 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:08,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:08,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1617543823, now seen corresponding path program 50 times [2024-11-09 04:34:08,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:08,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918163099] [2024-11-09 04:34:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:08,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:08,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:08,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918163099] [2024-11-09 04:34:08,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918163099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:08,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:08,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:08,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899685850] [2024-11-09 04:34:08,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:08,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:08,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:08,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:08,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:08,490 INFO L87 Difference]: Start difference. First operand 6985 states and 21584 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:09,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:09,329 INFO L93 Difference]: Finished difference Result 7753 states and 23552 transitions. [2024-11-09 04:34:09,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:09,330 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:09,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:09,355 INFO L225 Difference]: With dead ends: 7753 [2024-11-09 04:34:09,355 INFO L226 Difference]: Without dead ends: 7714 [2024-11-09 04:34:09,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:34:09,358 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 150 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:09,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 130 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:34:09,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7714 states. [2024-11-09 04:34:09,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7714 to 6975. [2024-11-09 04:34:09,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6975 states, 6966 states have (on average 3.094602354292277) internal successors, (21557), 6974 states have internal predecessors, (21557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:09,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 21557 transitions. [2024-11-09 04:34:09,505 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 21557 transitions. Word has length 61 [2024-11-09 04:34:09,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:09,505 INFO L471 AbstractCegarLoop]: Abstraction has 6975 states and 21557 transitions. [2024-11-09 04:34:09,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:09,506 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 21557 transitions. [2024-11-09 04:34:09,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:09,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:09,508 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:09,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-11-09 04:34:09,508 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:09,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:09,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1473686643, now seen corresponding path program 51 times [2024-11-09 04:34:09,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:09,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102714196] [2024-11-09 04:34:09,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:09,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:10,016 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:10,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:10,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102714196] [2024-11-09 04:34:10,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102714196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:10,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:10,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:10,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338910678] [2024-11-09 04:34:10,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:10,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:10,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:10,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:10,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:10,018 INFO L87 Difference]: Start difference. First operand 6975 states and 21557 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:10,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:10,891 INFO L93 Difference]: Finished difference Result 8057 states and 24281 transitions. [2024-11-09 04:34:10,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:34:10,892 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:10,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:10,911 INFO L225 Difference]: With dead ends: 8057 [2024-11-09 04:34:10,911 INFO L226 Difference]: Without dead ends: 8018 [2024-11-09 04:34:10,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:34:10,913 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 205 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:10,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 109 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:34:10,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8018 states. [2024-11-09 04:34:11,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8018 to 6975. [2024-11-09 04:34:11,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6975 states, 6966 states have (on average 3.094602354292277) internal successors, (21557), 6974 states have internal predecessors, (21557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:11,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 21557 transitions. [2024-11-09 04:34:11,031 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 21557 transitions. Word has length 61 [2024-11-09 04:34:11,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:11,032 INFO L471 AbstractCegarLoop]: Abstraction has 6975 states and 21557 transitions. [2024-11-09 04:34:11,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 21557 transitions. [2024-11-09 04:34:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:11,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:11,034 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:11,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-11-09 04:34:11,034 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:11,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:11,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1994020375, now seen corresponding path program 52 times [2024-11-09 04:34:11,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:11,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929493339] [2024-11-09 04:34:11,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:11,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:11,414 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:11,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:11,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929493339] [2024-11-09 04:34:11,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929493339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:11,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:11,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:11,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223741549] [2024-11-09 04:34:11,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:11,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:11,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:11,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:11,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:11,415 INFO L87 Difference]: Start difference. First operand 6975 states and 21557 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:12,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:12,099 INFO L93 Difference]: Finished difference Result 8040 states and 24286 transitions. [2024-11-09 04:34:12,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:12,100 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:12,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:12,125 INFO L225 Difference]: With dead ends: 8040 [2024-11-09 04:34:12,125 INFO L226 Difference]: Without dead ends: 8001 [2024-11-09 04:34:12,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:34:12,128 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 181 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:12,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 106 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:12,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8001 states. [2024-11-09 04:34:12,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8001 to 6979. [2024-11-09 04:34:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6979 states, 6970 states have (on average 3.0951219512195123) internal successors, (21573), 6978 states have internal predecessors, (21573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:12,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6979 states to 6979 states and 21573 transitions. [2024-11-09 04:34:12,260 INFO L78 Accepts]: Start accepts. Automaton has 6979 states and 21573 transitions. Word has length 61 [2024-11-09 04:34:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:12,260 INFO L471 AbstractCegarLoop]: Abstraction has 6979 states and 21573 transitions. [2024-11-09 04:34:12,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand 6979 states and 21573 transitions. [2024-11-09 04:34:12,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:12,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:12,262 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:12,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-09 04:34:12,262 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:12,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:12,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1634913385, now seen corresponding path program 53 times [2024-11-09 04:34:12,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:12,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281998199] [2024-11-09 04:34:12,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:12,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:12,668 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:12,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:12,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281998199] [2024-11-09 04:34:12,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281998199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:12,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:12,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:12,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267281200] [2024-11-09 04:34:12,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:12,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:12,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:12,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:12,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:12,670 INFO L87 Difference]: Start difference. First operand 6979 states and 21573 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:13,679 INFO L93 Difference]: Finished difference Result 8020 states and 24243 transitions. [2024-11-09 04:34:13,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:34:13,680 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:13,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:13,703 INFO L225 Difference]: With dead ends: 8020 [2024-11-09 04:34:13,704 INFO L226 Difference]: Without dead ends: 7981 [2024-11-09 04:34:13,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2024-11-09 04:34:13,707 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 195 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:13,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 147 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:34:13,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7981 states. [2024-11-09 04:34:13,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7981 to 6977. [2024-11-09 04:34:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6977 states, 6968 states have (on average 3.0947187141216994) internal successors, (21564), 6976 states have internal predecessors, (21564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:13,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6977 states to 6977 states and 21564 transitions. [2024-11-09 04:34:13,847 INFO L78 Accepts]: Start accepts. Automaton has 6977 states and 21564 transitions. Word has length 61 [2024-11-09 04:34:13,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:13,848 INFO L471 AbstractCegarLoop]: Abstraction has 6977 states and 21564 transitions. [2024-11-09 04:34:13,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:13,848 INFO L276 IsEmpty]: Start isEmpty. Operand 6977 states and 21564 transitions. [2024-11-09 04:34:13,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:13,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:13,852 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:13,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-11-09 04:34:13,852 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:13,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:13,852 INFO L85 PathProgramCache]: Analyzing trace with hash -579611825, now seen corresponding path program 54 times [2024-11-09 04:34:13,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:13,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62405433] [2024-11-09 04:34:13,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:14,408 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:14,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:14,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62405433] [2024-11-09 04:34:14,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62405433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:14,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:14,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:14,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900853357] [2024-11-09 04:34:14,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:14,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:14,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:14,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:14,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:14,410 INFO L87 Difference]: Start difference. First operand 6977 states and 21564 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:15,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:15,131 INFO L93 Difference]: Finished difference Result 8078 states and 24370 transitions. [2024-11-09 04:34:15,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:15,132 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:15,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:15,152 INFO L225 Difference]: With dead ends: 8078 [2024-11-09 04:34:15,152 INFO L226 Difference]: Without dead ends: 8039 [2024-11-09 04:34:15,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:34:15,155 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 188 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:15,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 120 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:34:15,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8039 states. [2024-11-09 04:34:15,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8039 to 6969. [2024-11-09 04:34:15,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6969 states, 6960 states have (on average 3.094252873563218) internal successors, (21536), 6968 states have internal predecessors, (21536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6969 states to 6969 states and 21536 transitions. [2024-11-09 04:34:15,273 INFO L78 Accepts]: Start accepts. Automaton has 6969 states and 21536 transitions. Word has length 61 [2024-11-09 04:34:15,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:15,273 INFO L471 AbstractCegarLoop]: Abstraction has 6969 states and 21536 transitions. [2024-11-09 04:34:15,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:15,273 INFO L276 IsEmpty]: Start isEmpty. Operand 6969 states and 21536 transitions. [2024-11-09 04:34:15,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:15,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:15,275 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:15,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-11-09 04:34:15,276 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:15,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:15,276 INFO L85 PathProgramCache]: Analyzing trace with hash -212331835, now seen corresponding path program 55 times [2024-11-09 04:34:15,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:15,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889468662] [2024-11-09 04:34:15,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:15,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:15,609 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:15,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:15,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889468662] [2024-11-09 04:34:15,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889468662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:15,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:15,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:15,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145110038] [2024-11-09 04:34:15,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:15,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:15,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:15,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:15,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:15,610 INFO L87 Difference]: Start difference. First operand 6969 states and 21536 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:16,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:16,324 INFO L93 Difference]: Finished difference Result 8108 states and 24458 transitions. [2024-11-09 04:34:16,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:16,324 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:16,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:16,349 INFO L225 Difference]: With dead ends: 8108 [2024-11-09 04:34:16,349 INFO L226 Difference]: Without dead ends: 8069 [2024-11-09 04:34:16,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:34:16,352 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 190 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:16,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 126 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:34:16,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8069 states. [2024-11-09 04:34:16,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8069 to 6973. [2024-11-09 04:34:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6973 states, 6964 states have (on average 3.0941987363584147) internal successors, (21548), 6972 states have internal predecessors, (21548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:16,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6973 states to 6973 states and 21548 transitions. [2024-11-09 04:34:16,486 INFO L78 Accepts]: Start accepts. Automaton has 6973 states and 21548 transitions. Word has length 61 [2024-11-09 04:34:16,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:16,486 INFO L471 AbstractCegarLoop]: Abstraction has 6973 states and 21548 transitions. [2024-11-09 04:34:16,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:16,486 INFO L276 IsEmpty]: Start isEmpty. Operand 6973 states and 21548 transitions. [2024-11-09 04:34:16,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:16,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:16,488 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:16,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-11-09 04:34:16,489 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:16,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:16,489 INFO L85 PathProgramCache]: Analyzing trace with hash 350373963, now seen corresponding path program 56 times [2024-11-09 04:34:16,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:16,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230524764] [2024-11-09 04:34:16,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:16,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:16,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:16,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230524764] [2024-11-09 04:34:16,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230524764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:16,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:16,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:16,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096569157] [2024-11-09 04:34:16,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:16,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:16,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:16,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:16,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:16,906 INFO L87 Difference]: Start difference. First operand 6973 states and 21548 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:17,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:17,629 INFO L93 Difference]: Finished difference Result 8130 states and 24534 transitions. [2024-11-09 04:34:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:17,629 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:17,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:17,655 INFO L225 Difference]: With dead ends: 8130 [2024-11-09 04:34:17,655 INFO L226 Difference]: Without dead ends: 8091 [2024-11-09 04:34:17,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:34:17,658 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 166 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:17,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 99 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:34:17,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8091 states. [2024-11-09 04:34:17,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8091 to 6975. [2024-11-09 04:34:17,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6975 states, 6966 states have (on average 3.094602354292277) internal successors, (21557), 6974 states have internal predecessors, (21557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:17,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 21557 transitions. [2024-11-09 04:34:17,789 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 21557 transitions. Word has length 61 [2024-11-09 04:34:17,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:17,789 INFO L471 AbstractCegarLoop]: Abstraction has 6975 states and 21557 transitions. [2024-11-09 04:34:17,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:17,790 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 21557 transitions. [2024-11-09 04:34:17,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:17,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:17,792 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:17,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-11-09 04:34:17,792 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:17,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:17,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1016407499, now seen corresponding path program 57 times [2024-11-09 04:34:17,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:17,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008560078] [2024-11-09 04:34:17,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:17,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:18,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:18,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008560078] [2024-11-09 04:34:18,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008560078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:18,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:18,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:18,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551877004] [2024-11-09 04:34:18,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:18,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:18,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:18,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:18,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:18,182 INFO L87 Difference]: Start difference. First operand 6975 states and 21557 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:18,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:18,777 INFO L93 Difference]: Finished difference Result 8109 states and 24483 transitions. [2024-11-09 04:34:18,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:18,778 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:18,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:18,800 INFO L225 Difference]: With dead ends: 8109 [2024-11-09 04:34:18,800 INFO L226 Difference]: Without dead ends: 8070 [2024-11-09 04:34:18,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:34:18,803 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 168 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:18,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 103 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:18,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8070 states. [2024-11-09 04:34:18,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8070 to 6971. [2024-11-09 04:34:18,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6971 states, 6962 states have (on average 3.0940821602987647) internal successors, (21541), 6970 states have internal predecessors, (21541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:18,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6971 states to 6971 states and 21541 transitions. [2024-11-09 04:34:18,934 INFO L78 Accepts]: Start accepts. Automaton has 6971 states and 21541 transitions. Word has length 61 [2024-11-09 04:34:18,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:18,935 INFO L471 AbstractCegarLoop]: Abstraction has 6971 states and 21541 transitions. [2024-11-09 04:34:18,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:18,935 INFO L276 IsEmpty]: Start isEmpty. Operand 6971 states and 21541 transitions. [2024-11-09 04:34:18,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:18,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:18,937 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:18,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-11-09 04:34:18,937 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:18,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:18,938 INFO L85 PathProgramCache]: Analyzing trace with hash -234237955, now seen corresponding path program 58 times [2024-11-09 04:34:18,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:18,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063389213] [2024-11-09 04:34:18,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:18,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:19,315 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:19,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:19,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063389213] [2024-11-09 04:34:19,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063389213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:19,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:19,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:19,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236998180] [2024-11-09 04:34:19,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:19,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:19,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:19,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:19,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:19,316 INFO L87 Difference]: Start difference. First operand 6971 states and 21541 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:19,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:19,950 INFO L93 Difference]: Finished difference Result 8168 states and 24637 transitions. [2024-11-09 04:34:19,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:19,950 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:19,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:19,975 INFO L225 Difference]: With dead ends: 8168 [2024-11-09 04:34:19,975 INFO L226 Difference]: Without dead ends: 8129 [2024-11-09 04:34:19,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:34:19,978 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 168 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:19,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 97 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:19,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8129 states. [2024-11-09 04:34:20,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8129 to 6975. [2024-11-09 04:34:20,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6975 states, 6966 states have (on average 3.094602354292277) internal successors, (21557), 6974 states have internal predecessors, (21557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:20,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 21557 transitions. [2024-11-09 04:34:20,113 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 21557 transitions. Word has length 61 [2024-11-09 04:34:20,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:20,114 INFO L471 AbstractCegarLoop]: Abstraction has 6975 states and 21557 transitions. [2024-11-09 04:34:20,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:20,114 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 21557 transitions. [2024-11-09 04:34:20,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:20,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:20,116 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:20,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-11-09 04:34:20,116 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:20,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:20,116 INFO L85 PathProgramCache]: Analyzing trace with hash 431795581, now seen corresponding path program 59 times [2024-11-09 04:34:20,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:20,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122632943] [2024-11-09 04:34:20,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:20,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:20,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:20,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122632943] [2024-11-09 04:34:20,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122632943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:20,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:20,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:20,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751358565] [2024-11-09 04:34:20,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:20,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:20,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:20,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:20,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:20,560 INFO L87 Difference]: Start difference. First operand 6975 states and 21557 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:21,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:21,210 INFO L93 Difference]: Finished difference Result 8165 states and 24633 transitions. [2024-11-09 04:34:21,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:21,210 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:21,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:21,238 INFO L225 Difference]: With dead ends: 8165 [2024-11-09 04:34:21,238 INFO L226 Difference]: Without dead ends: 8126 [2024-11-09 04:34:21,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:34:21,241 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 160 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:21,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 101 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:21,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8126 states. [2024-11-09 04:34:21,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8126 to 6973. [2024-11-09 04:34:21,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6973 states, 6964 states have (on average 3.0941987363584147) internal successors, (21548), 6972 states have internal predecessors, (21548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:21,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6973 states to 6973 states and 21548 transitions. [2024-11-09 04:34:21,369 INFO L78 Accepts]: Start accepts. Automaton has 6973 states and 21548 transitions. Word has length 61 [2024-11-09 04:34:21,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:21,369 INFO L471 AbstractCegarLoop]: Abstraction has 6973 states and 21548 transitions. [2024-11-09 04:34:21,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:21,369 INFO L276 IsEmpty]: Start isEmpty. Operand 6973 states and 21548 transitions. [2024-11-09 04:34:21,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:21,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:21,371 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:21,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-09 04:34:21,371 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:21,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:21,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1487097141, now seen corresponding path program 60 times [2024-11-09 04:34:21,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:21,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740209229] [2024-11-09 04:34:21,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:21,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:21,766 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:21,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:21,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740209229] [2024-11-09 04:34:21,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740209229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:21,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:21,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:21,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876128859] [2024-11-09 04:34:21,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:21,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:21,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:21,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:21,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:21,769 INFO L87 Difference]: Start difference. First operand 6973 states and 21548 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:22,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:22,731 INFO L93 Difference]: Finished difference Result 8121 states and 24501 transitions. [2024-11-09 04:34:22,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 04:34:22,732 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:22,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:22,753 INFO L225 Difference]: With dead ends: 8121 [2024-11-09 04:34:22,753 INFO L226 Difference]: Without dead ends: 8082 [2024-11-09 04:34:22,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2024-11-09 04:34:22,756 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 201 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:22,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 127 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:34:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8082 states. [2024-11-09 04:34:22,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8082 to 6963. [2024-11-09 04:34:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6963 states, 6954 states have (on average 3.0947656025309174) internal successors, (21521), 6962 states have internal predecessors, (21521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:22,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6963 states to 6963 states and 21521 transitions. [2024-11-09 04:34:22,888 INFO L78 Accepts]: Start accepts. Automaton has 6963 states and 21521 transitions. Word has length 61 [2024-11-09 04:34:22,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:22,888 INFO L471 AbstractCegarLoop]: Abstraction has 6963 states and 21521 transitions. [2024-11-09 04:34:22,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6963 states and 21521 transitions. [2024-11-09 04:34:22,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:22,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:22,890 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:22,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-11-09 04:34:22,890 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:22,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:22,891 INFO L85 PathProgramCache]: Analyzing trace with hash -2000781647, now seen corresponding path program 61 times [2024-11-09 04:34:22,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:22,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454713944] [2024-11-09 04:34:22,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:22,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:23,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:23,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454713944] [2024-11-09 04:34:23,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454713944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:23,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:23,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:23,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181660725] [2024-11-09 04:34:23,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:23,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:23,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:23,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:23,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:23,285 INFO L87 Difference]: Start difference. First operand 6963 states and 21521 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:24,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:24,082 INFO L93 Difference]: Finished difference Result 7916 states and 23902 transitions. [2024-11-09 04:34:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:34:24,082 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:24,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:24,114 INFO L225 Difference]: With dead ends: 7916 [2024-11-09 04:34:24,114 INFO L226 Difference]: Without dead ends: 7877 [2024-11-09 04:34:24,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:34:24,118 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 200 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:24,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 131 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:34:24,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7877 states. [2024-11-09 04:34:24,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7877 to 6963. [2024-11-09 04:34:24,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6963 states, 6954 states have (on average 3.0947656025309174) internal successors, (21521), 6962 states have internal predecessors, (21521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:24,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6963 states to 6963 states and 21521 transitions. [2024-11-09 04:34:24,244 INFO L78 Accepts]: Start accepts. Automaton has 6963 states and 21521 transitions. Word has length 61 [2024-11-09 04:34:24,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:24,244 INFO L471 AbstractCegarLoop]: Abstraction has 6963 states and 21521 transitions. [2024-11-09 04:34:24,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 6963 states and 21521 transitions. [2024-11-09 04:34:24,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:24,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:24,246 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:24,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-11-09 04:34:24,246 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:24,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:24,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1100304239, now seen corresponding path program 62 times [2024-11-09 04:34:24,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:24,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309973197] [2024-11-09 04:34:24,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:24,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:24,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:24,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309973197] [2024-11-09 04:34:24,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309973197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:24,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:24,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:24,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641523579] [2024-11-09 04:34:24,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:24,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:24,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:24,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:24,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:24,565 INFO L87 Difference]: Start difference. First operand 6963 states and 21521 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:25,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:25,272 INFO L93 Difference]: Finished difference Result 7966 states and 24068 transitions. [2024-11-09 04:34:25,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:25,272 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:25,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:25,297 INFO L225 Difference]: With dead ends: 7966 [2024-11-09 04:34:25,297 INFO L226 Difference]: Without dead ends: 7927 [2024-11-09 04:34:25,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:34:25,300 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 192 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:25,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 137 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:25,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7927 states. [2024-11-09 04:34:25,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7927 to 6965. [2024-11-09 04:34:25,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6956 states have (on average 3.094882116158712) internal successors, (21528), 6964 states have internal predecessors, (21528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:25,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 21528 transitions. [2024-11-09 04:34:25,477 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 21528 transitions. Word has length 61 [2024-11-09 04:34:25,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:25,478 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 21528 transitions. [2024-11-09 04:34:25,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:25,478 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 21528 transitions. [2024-11-09 04:34:25,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:25,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:25,481 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:25,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2024-11-09 04:34:25,481 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:25,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:25,481 INFO L85 PathProgramCache]: Analyzing trace with hash -537598441, now seen corresponding path program 63 times [2024-11-09 04:34:25,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:25,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602953896] [2024-11-09 04:34:25,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:25,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:25,838 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:25,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:25,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602953896] [2024-11-09 04:34:25,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602953896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:25,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:25,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:25,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911378512] [2024-11-09 04:34:25,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:25,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:25,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:25,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:25,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:25,840 INFO L87 Difference]: Start difference. First operand 6965 states and 21528 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:26,518 INFO L93 Difference]: Finished difference Result 7921 states and 23959 transitions. [2024-11-09 04:34:26,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:26,519 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:26,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:26,543 INFO L225 Difference]: With dead ends: 7921 [2024-11-09 04:34:26,543 INFO L226 Difference]: Without dead ends: 7882 [2024-11-09 04:34:26,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:34:26,547 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 165 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:26,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 108 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7882 states. [2024-11-09 04:34:26,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7882 to 6967. [2024-11-09 04:34:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6967 states, 6958 states have (on average 3.0952860017246335) internal successors, (21537), 6966 states have internal predecessors, (21537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:26,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6967 states to 6967 states and 21537 transitions. [2024-11-09 04:34:26,680 INFO L78 Accepts]: Start accepts. Automaton has 6967 states and 21537 transitions. Word has length 61 [2024-11-09 04:34:26,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:26,680 INFO L471 AbstractCegarLoop]: Abstraction has 6967 states and 21537 transitions. [2024-11-09 04:34:26,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:26,680 INFO L276 IsEmpty]: Start isEmpty. Operand 6967 states and 21537 transitions. [2024-11-09 04:34:26,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:26,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:26,683 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:26,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-11-09 04:34:26,683 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:26,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:26,683 INFO L85 PathProgramCache]: Analyzing trace with hash 128435095, now seen corresponding path program 64 times [2024-11-09 04:34:26,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:26,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345656217] [2024-11-09 04:34:26,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:26,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:27,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:27,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345656217] [2024-11-09 04:34:27,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345656217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:27,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:27,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:27,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562743857] [2024-11-09 04:34:27,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:27,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:27,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:27,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:27,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:27,047 INFO L87 Difference]: Start difference. First operand 6967 states and 21537 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:27,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:27,739 INFO L93 Difference]: Finished difference Result 7900 states and 23908 transitions. [2024-11-09 04:34:27,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:27,739 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:27,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:27,762 INFO L225 Difference]: With dead ends: 7900 [2024-11-09 04:34:27,762 INFO L226 Difference]: Without dead ends: 7861 [2024-11-09 04:34:27,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:34:27,765 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 174 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:27,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 144 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:27,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2024-11-09 04:34:27,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 6957. [2024-11-09 04:34:27,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6957 states, 6948 states have (on average 3.0944156591824985) internal successors, (21500), 6956 states have internal predecessors, (21500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:27,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6957 states to 6957 states and 21500 transitions. [2024-11-09 04:34:27,894 INFO L78 Accepts]: Start accepts. Automaton has 6957 states and 21500 transitions. Word has length 61 [2024-11-09 04:34:27,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:27,895 INFO L471 AbstractCegarLoop]: Abstraction has 6957 states and 21500 transitions. [2024-11-09 04:34:27,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:27,895 INFO L276 IsEmpty]: Start isEmpty. Operand 6957 states and 21500 transitions. [2024-11-09 04:34:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:27,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:27,897 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:27,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-11-09 04:34:27,897 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:27,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:27,897 INFO L85 PathProgramCache]: Analyzing trace with hash 507198777, now seen corresponding path program 65 times [2024-11-09 04:34:27,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:27,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042849534] [2024-11-09 04:34:27,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:27,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:28,330 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:28,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:28,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042849534] [2024-11-09 04:34:28,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042849534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:28,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:28,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:28,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562215358] [2024-11-09 04:34:28,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:28,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:28,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:28,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:28,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:28,332 INFO L87 Difference]: Start difference. First operand 6957 states and 21500 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:28,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:28,984 INFO L93 Difference]: Finished difference Result 8002 states and 24164 transitions. [2024-11-09 04:34:28,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:28,984 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:28,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:29,005 INFO L225 Difference]: With dead ends: 8002 [2024-11-09 04:34:29,005 INFO L226 Difference]: Without dead ends: 7963 [2024-11-09 04:34:29,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:34:29,008 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 187 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:29,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 98 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:29,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7963 states. [2024-11-09 04:34:29,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7963 to 6957. [2024-11-09 04:34:29,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6957 states, 6948 states have (on average 3.0944156591824985) internal successors, (21500), 6956 states have internal predecessors, (21500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:29,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6957 states to 6957 states and 21500 transitions. [2024-11-09 04:34:29,150 INFO L78 Accepts]: Start accepts. Automaton has 6957 states and 21500 transitions. Word has length 61 [2024-11-09 04:34:29,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:29,150 INFO L471 AbstractCegarLoop]: Abstraction has 6957 states and 21500 transitions. [2024-11-09 04:34:29,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:29,151 INFO L276 IsEmpty]: Start isEmpty. Operand 6957 states and 21500 transitions. [2024-11-09 04:34:29,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:29,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:29,153 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:29,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-11-09 04:34:29,154 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:29,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:29,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1069904575, now seen corresponding path program 66 times [2024-11-09 04:34:29,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:29,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385782514] [2024-11-09 04:34:29,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:29,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:29,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:29,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385782514] [2024-11-09 04:34:29,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385782514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:29,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:29,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:29,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180259507] [2024-11-09 04:34:29,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:29,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:29,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:29,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:29,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:29,551 INFO L87 Difference]: Start difference. First operand 6957 states and 21500 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:30,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:30,241 INFO L93 Difference]: Finished difference Result 8021 states and 24237 transitions. [2024-11-09 04:34:30,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:30,242 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:30,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:30,272 INFO L225 Difference]: With dead ends: 8021 [2024-11-09 04:34:30,272 INFO L226 Difference]: Without dead ends: 7982 [2024-11-09 04:34:30,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:34:30,282 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 177 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:30,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 119 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:34:30,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7982 states. [2024-11-09 04:34:30,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7982 to 6959. [2024-11-09 04:34:30,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6959 states, 6950 states have (on average 3.094820143884892) internal successors, (21509), 6958 states have internal predecessors, (21509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:30,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 21509 transitions. [2024-11-09 04:34:30,443 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 21509 transitions. Word has length 61 [2024-11-09 04:34:30,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:30,443 INFO L471 AbstractCegarLoop]: Abstraction has 6959 states and 21509 transitions. [2024-11-09 04:34:30,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:30,443 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 21509 transitions. [2024-11-09 04:34:30,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:30,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:30,445 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:30,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-11-09 04:34:30,445 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:30,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:30,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1735938111, now seen corresponding path program 67 times [2024-11-09 04:34:30,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:30,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213708318] [2024-11-09 04:34:30,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:30,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:30,856 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:30,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:30,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213708318] [2024-11-09 04:34:30,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213708318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:30,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:30,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:30,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207299597] [2024-11-09 04:34:30,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:30,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:30,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:30,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:30,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:30,858 INFO L87 Difference]: Start difference. First operand 6959 states and 21509 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:31,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:31,511 INFO L93 Difference]: Finished difference Result 8000 states and 24186 transitions. [2024-11-09 04:34:31,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:34:31,511 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:31,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:31,534 INFO L225 Difference]: With dead ends: 8000 [2024-11-09 04:34:31,534 INFO L226 Difference]: Without dead ends: 7961 [2024-11-09 04:34:31,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:34:31,538 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 162 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:31,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 124 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:31,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7961 states. [2024-11-09 04:34:31,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7961 to 6955. [2024-11-09 04:34:31,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 6946 states have (on average 3.0942988770515405) internal successors, (21493), 6954 states have internal predecessors, (21493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:31,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 21493 transitions. [2024-11-09 04:34:31,671 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 21493 transitions. Word has length 61 [2024-11-09 04:34:31,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:31,671 INFO L471 AbstractCegarLoop]: Abstraction has 6955 states and 21493 transitions. [2024-11-09 04:34:31,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:31,672 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 21493 transitions. [2024-11-09 04:34:31,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:31,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:31,674 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:31,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-11-09 04:34:31,674 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:31,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:31,674 INFO L85 PathProgramCache]: Analyzing trace with hash 485292657, now seen corresponding path program 68 times [2024-11-09 04:34:31,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:31,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425763116] [2024-11-09 04:34:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:31,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:32,197 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:32,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:32,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425763116] [2024-11-09 04:34:32,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425763116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:32,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:32,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:32,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127407009] [2024-11-09 04:34:32,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:32,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:32,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:32,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:32,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:32,199 INFO L87 Difference]: Start difference. First operand 6955 states and 21493 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:33,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:33,033 INFO L93 Difference]: Finished difference Result 7928 states and 23988 transitions. [2024-11-09 04:34:33,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:34:33,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:33,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:33,057 INFO L225 Difference]: With dead ends: 7928 [2024-11-09 04:34:33,057 INFO L226 Difference]: Without dead ends: 7889 [2024-11-09 04:34:33,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:34:33,060 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 206 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:33,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 133 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:34:33,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7889 states. [2024-11-09 04:34:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7889 to 6955. [2024-11-09 04:34:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 6946 states have (on average 3.0942988770515405) internal successors, (21493), 6954 states have internal predecessors, (21493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:33,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 21493 transitions. [2024-11-09 04:34:33,195 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 21493 transitions. Word has length 61 [2024-11-09 04:34:33,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:33,195 INFO L471 AbstractCegarLoop]: Abstraction has 6955 states and 21493 transitions. [2024-11-09 04:34:33,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:33,195 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 21493 transitions. [2024-11-09 04:34:33,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:33,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:33,197 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:33,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2024-11-09 04:34:33,198 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:33,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:33,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1151326193, now seen corresponding path program 69 times [2024-11-09 04:34:33,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:33,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309339605] [2024-11-09 04:34:33,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:33,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:33,761 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:33,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:33,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309339605] [2024-11-09 04:34:33,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309339605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:33,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:33,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:33,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572388727] [2024-11-09 04:34:33,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:33,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:33,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:33,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:33,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:33,764 INFO L87 Difference]: Start difference. First operand 6955 states and 21493 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:34,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:34,702 INFO L93 Difference]: Finished difference Result 7924 states and 23980 transitions. [2024-11-09 04:34:34,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:34:34,702 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:34,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:34,725 INFO L225 Difference]: With dead ends: 7924 [2024-11-09 04:34:34,726 INFO L226 Difference]: Without dead ends: 7885 [2024-11-09 04:34:34,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:34:34,729 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 181 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:34,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 107 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:34:34,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7885 states. [2024-11-09 04:34:34,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7885 to 6953. [2024-11-09 04:34:34,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6953 states, 6944 states have (on average 3.09389400921659) internal successors, (21484), 6952 states have internal predecessors, (21484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:34,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6953 states to 6953 states and 21484 transitions. [2024-11-09 04:34:34,862 INFO L78 Accepts]: Start accepts. Automaton has 6953 states and 21484 transitions. Word has length 61 [2024-11-09 04:34:34,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:34,863 INFO L471 AbstractCegarLoop]: Abstraction has 6953 states and 21484 transitions. [2024-11-09 04:34:34,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:34,863 INFO L276 IsEmpty]: Start isEmpty. Operand 6953 states and 21484 transitions. [2024-11-09 04:34:34,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:34:34,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:34,865 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:34,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2024-11-09 04:34:34,865 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:34,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:34,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2088339543, now seen corresponding path program 70 times [2024-11-09 04:34:34,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:34,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725628377] [2024-11-09 04:34:34,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:34,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:35,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:35,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725628377] [2024-11-09 04:34:35,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725628377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:35,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:35,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:34:35,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684539134] [2024-11-09 04:34:35,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:35,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:35,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:35,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:35,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:35,246 INFO L87 Difference]: Start difference. First operand 6953 states and 21484 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:35,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:35,979 INFO L93 Difference]: Finished difference Result 7918 states and 23929 transitions. [2024-11-09 04:34:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:35,979 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-09 04:34:35,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:36,004 INFO L225 Difference]: With dead ends: 7918 [2024-11-09 04:34:36,004 INFO L226 Difference]: Without dead ends: 7879 [2024-11-09 04:34:36,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:34:36,008 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 169 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:36,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 104 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:34:36,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7879 states. [2024-11-09 04:34:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7879 to 6925. [2024-11-09 04:34:36,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6925 states, 6916 states have (on average 3.0960092539039907) internal successors, (21412), 6924 states have internal predecessors, (21412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:36,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6925 states to 6925 states and 21412 transitions. [2024-11-09 04:34:36,146 INFO L78 Accepts]: Start accepts. Automaton has 6925 states and 21412 transitions. Word has length 61 [2024-11-09 04:34:36,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:36,147 INFO L471 AbstractCegarLoop]: Abstraction has 6925 states and 21412 transitions. [2024-11-09 04:34:36,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:36,147 INFO L276 IsEmpty]: Start isEmpty. Operand 6925 states and 21412 transitions. [2024-11-09 04:34:36,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:36,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:36,149 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:36,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2024-11-09 04:34:36,149 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:36,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:36,150 INFO L85 PathProgramCache]: Analyzing trace with hash -11773944, now seen corresponding path program 1 times [2024-11-09 04:34:36,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:36,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777012634] [2024-11-09 04:34:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:36,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:36,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:36,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777012634] [2024-11-09 04:34:36,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777012634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:36,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:36,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:36,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035667536] [2024-11-09 04:34:36,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:36,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:36,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:36,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:36,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:36,325 INFO L87 Difference]: Start difference. First operand 6925 states and 21412 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:36,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:36,752 INFO L93 Difference]: Finished difference Result 7330 states and 22352 transitions. [2024-11-09 04:34:36,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:36,753 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:36,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:36,775 INFO L225 Difference]: With dead ends: 7330 [2024-11-09 04:34:36,776 INFO L226 Difference]: Without dead ends: 7309 [2024-11-09 04:34:36,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:34:36,779 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 175 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:36,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 394 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:36,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7309 states. [2024-11-09 04:34:36,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7309 to 7125. [2024-11-09 04:34:36,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7125 states, 7116 states have (on average 3.0753232152894885) internal successors, (21884), 7124 states have internal predecessors, (21884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:36,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7125 states to 7125 states and 21884 transitions. [2024-11-09 04:34:36,914 INFO L78 Accepts]: Start accepts. Automaton has 7125 states and 21884 transitions. Word has length 63 [2024-11-09 04:34:36,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:36,914 INFO L471 AbstractCegarLoop]: Abstraction has 7125 states and 21884 transitions. [2024-11-09 04:34:36,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:36,915 INFO L276 IsEmpty]: Start isEmpty. Operand 7125 states and 21884 transitions. [2024-11-09 04:34:36,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:36,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:36,917 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:36,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2024-11-09 04:34:36,917 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:36,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:36,917 INFO L85 PathProgramCache]: Analyzing trace with hash 831158636, now seen corresponding path program 2 times [2024-11-09 04:34:36,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:36,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105064763] [2024-11-09 04:34:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:36,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:37,162 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:37,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:37,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105064763] [2024-11-09 04:34:37,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105064763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:37,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:37,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:37,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576630010] [2024-11-09 04:34:37,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:37,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:37,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:37,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:37,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:37,163 INFO L87 Difference]: Start difference. First operand 7125 states and 21884 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:37,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:37,702 INFO L93 Difference]: Finished difference Result 11320 states and 34947 transitions. [2024-11-09 04:34:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:34:37,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:37,738 INFO L225 Difference]: With dead ends: 11320 [2024-11-09 04:34:37,738 INFO L226 Difference]: Without dead ends: 11299 [2024-11-09 04:34:37,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:34:37,742 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 205 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:37,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 420 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:37,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11299 states. [2024-11-09 04:34:37,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11299 to 7135. [2024-11-09 04:34:37,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7135 states, 7126 states have (on average 3.0745158574235196) internal successors, (21909), 7134 states have internal predecessors, (21909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:37,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7135 states to 7135 states and 21909 transitions. [2024-11-09 04:34:37,909 INFO L78 Accepts]: Start accepts. Automaton has 7135 states and 21909 transitions. Word has length 63 [2024-11-09 04:34:37,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:37,909 INFO L471 AbstractCegarLoop]: Abstraction has 7135 states and 21909 transitions. [2024-11-09 04:34:37,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:37,909 INFO L276 IsEmpty]: Start isEmpty. Operand 7135 states and 21909 transitions. [2024-11-09 04:34:37,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:37,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:37,913 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:37,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2024-11-09 04:34:37,913 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:37,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:37,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1203764920, now seen corresponding path program 3 times [2024-11-09 04:34:37,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:37,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137170108] [2024-11-09 04:34:37,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:37,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:38,091 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:38,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:38,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137170108] [2024-11-09 04:34:38,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137170108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:38,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:38,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:38,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284328884] [2024-11-09 04:34:38,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:38,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:38,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:38,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:38,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:38,093 INFO L87 Difference]: Start difference. First operand 7135 states and 21909 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:38,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:38,754 INFO L93 Difference]: Finished difference Result 13007 states and 40073 transitions. [2024-11-09 04:34:38,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 04:34:38,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:38,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:38,796 INFO L225 Difference]: With dead ends: 13007 [2024-11-09 04:34:38,796 INFO L226 Difference]: Without dead ends: 12990 [2024-11-09 04:34:38,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2024-11-09 04:34:38,801 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 348 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:38,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 412 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:34:38,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12990 states. [2024-11-09 04:34:38,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12990 to 7145. [2024-11-09 04:34:38,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7145 states, 7136 states have (on average 3.0737107623318387) internal successors, (21934), 7144 states have internal predecessors, (21934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:38,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7145 states to 7145 states and 21934 transitions. [2024-11-09 04:34:38,983 INFO L78 Accepts]: Start accepts. Automaton has 7145 states and 21934 transitions. Word has length 63 [2024-11-09 04:34:38,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:38,983 INFO L471 AbstractCegarLoop]: Abstraction has 7145 states and 21934 transitions. [2024-11-09 04:34:38,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:38,983 INFO L276 IsEmpty]: Start isEmpty. Operand 7145 states and 21934 transitions. [2024-11-09 04:34:38,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:38,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:38,985 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:38,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2024-11-09 04:34:38,986 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:38,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:38,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1981172948, now seen corresponding path program 4 times [2024-11-09 04:34:38,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:38,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814567502] [2024-11-09 04:34:38,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:38,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:39,219 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:39,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:39,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814567502] [2024-11-09 04:34:39,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814567502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:39,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:39,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:39,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574079450] [2024-11-09 04:34:39,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:39,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:39,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:39,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:39,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:39,221 INFO L87 Difference]: Start difference. First operand 7145 states and 21934 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:40,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:40,045 INFO L93 Difference]: Finished difference Result 12990 states and 40037 transitions. [2024-11-09 04:34:40,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 04:34:40,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:40,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:40,088 INFO L225 Difference]: With dead ends: 12990 [2024-11-09 04:34:40,088 INFO L226 Difference]: Without dead ends: 12977 [2024-11-09 04:34:40,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=172, Invalid=428, Unknown=0, NotChecked=0, Total=600 [2024-11-09 04:34:40,093 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 438 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:40,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 412 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:34:40,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12977 states. [2024-11-09 04:34:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12977 to 7170. [2024-11-09 04:34:40,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7161 states have (on average 3.0699622957687476) internal successors, (21984), 7169 states have internal predecessors, (21984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:40,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 21984 transitions. [2024-11-09 04:34:40,362 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 21984 transitions. Word has length 63 [2024-11-09 04:34:40,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:40,362 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 21984 transitions. [2024-11-09 04:34:40,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:40,362 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 21984 transitions. [2024-11-09 04:34:40,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:40,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:40,364 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:40,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2024-11-09 04:34:40,364 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:40,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:40,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1299561040, now seen corresponding path program 5 times [2024-11-09 04:34:40,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:40,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102637829] [2024-11-09 04:34:40,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:40,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:40,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:40,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102637829] [2024-11-09 04:34:40,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102637829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:40,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:40,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:40,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571878305] [2024-11-09 04:34:40,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:40,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:40,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:40,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:40,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:40,578 INFO L87 Difference]: Start difference. First operand 7170 states and 21984 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:40,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:40,982 INFO L93 Difference]: Finished difference Result 11324 states and 34966 transitions. [2024-11-09 04:34:40,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:40,982 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:40,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:41,014 INFO L225 Difference]: With dead ends: 11324 [2024-11-09 04:34:41,014 INFO L226 Difference]: Without dead ends: 11303 [2024-11-09 04:34:41,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-09 04:34:41,018 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 126 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:41,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 357 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:41,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11303 states. [2024-11-09 04:34:41,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11303 to 7190. [2024-11-09 04:34:41,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7190 states, 7181 states have (on average 3.0683748781506752) internal successors, (22034), 7189 states have internal predecessors, (22034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:41,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7190 states to 7190 states and 22034 transitions. [2024-11-09 04:34:41,168 INFO L78 Accepts]: Start accepts. Automaton has 7190 states and 22034 transitions. Word has length 63 [2024-11-09 04:34:41,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:41,168 INFO L471 AbstractCegarLoop]: Abstraction has 7190 states and 22034 transitions. [2024-11-09 04:34:41,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:41,169 INFO L276 IsEmpty]: Start isEmpty. Operand 7190 states and 22034 transitions. [2024-11-09 04:34:41,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:41,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:41,171 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:41,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2024-11-09 04:34:41,171 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:41,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:41,172 INFO L85 PathProgramCache]: Analyzing trace with hash 960482700, now seen corresponding path program 6 times [2024-11-09 04:34:41,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:41,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004889683] [2024-11-09 04:34:41,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:41,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:41,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:41,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004889683] [2024-11-09 04:34:41,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004889683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:41,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:41,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:41,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241868413] [2024-11-09 04:34:41,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:41,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:41,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:41,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:41,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:41,411 INFO L87 Difference]: Start difference. First operand 7190 states and 22034 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:42,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:42,206 INFO L93 Difference]: Finished difference Result 13099 states and 40338 transitions. [2024-11-09 04:34:42,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 04:34:42,207 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:42,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:42,248 INFO L225 Difference]: With dead ends: 13099 [2024-11-09 04:34:42,248 INFO L226 Difference]: Without dead ends: 13082 [2024-11-09 04:34:42,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2024-11-09 04:34:42,253 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 225 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:42,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 365 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:42,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13082 states. [2024-11-09 04:34:42,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13082 to 7200. [2024-11-09 04:34:42,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7200 states, 7191 states have (on average 3.067584480600751) internal successors, (22059), 7199 states have internal predecessors, (22059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:42,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7200 states to 7200 states and 22059 transitions. [2024-11-09 04:34:42,436 INFO L78 Accepts]: Start accepts. Automaton has 7200 states and 22059 transitions. Word has length 63 [2024-11-09 04:34:42,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:42,436 INFO L471 AbstractCegarLoop]: Abstraction has 7200 states and 22059 transitions. [2024-11-09 04:34:42,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:42,436 INFO L276 IsEmpty]: Start isEmpty. Operand 7200 states and 22059 transitions. [2024-11-09 04:34:42,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:42,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:42,439 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:42,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2024-11-09 04:34:42,439 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:42,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:42,439 INFO L85 PathProgramCache]: Analyzing trace with hash 183074672, now seen corresponding path program 7 times [2024-11-09 04:34:42,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:42,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405011521] [2024-11-09 04:34:42,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:42,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:42,634 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:42,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:42,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405011521] [2024-11-09 04:34:42,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405011521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:42,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:42,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:42,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982865307] [2024-11-09 04:34:42,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:42,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:42,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:42,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:42,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:42,635 INFO L87 Difference]: Start difference. First operand 7200 states and 22059 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:43,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:43,231 INFO L93 Difference]: Finished difference Result 13179 states and 40582 transitions. [2024-11-09 04:34:43,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 04:34:43,232 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:43,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:43,268 INFO L225 Difference]: With dead ends: 13179 [2024-11-09 04:34:43,268 INFO L226 Difference]: Without dead ends: 13166 [2024-11-09 04:34:43,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2024-11-09 04:34:43,273 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 317 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:43,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 390 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:43,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13166 states. [2024-11-09 04:34:43,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13166 to 7180. [2024-11-09 04:34:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7180 states, 7171 states have (on average 3.0691674801282947) internal successors, (22009), 7179 states have internal predecessors, (22009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7180 states to 7180 states and 22009 transitions. [2024-11-09 04:34:43,432 INFO L78 Accepts]: Start accepts. Automaton has 7180 states and 22009 transitions. Word has length 63 [2024-11-09 04:34:43,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:43,433 INFO L471 AbstractCegarLoop]: Abstraction has 7180 states and 22009 transitions. [2024-11-09 04:34:43,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:43,433 INFO L276 IsEmpty]: Start isEmpty. Operand 7180 states and 22009 transitions. [2024-11-09 04:34:43,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:43,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:43,435 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:43,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2024-11-09 04:34:43,435 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:43,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:43,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1731420966, now seen corresponding path program 8 times [2024-11-09 04:34:43,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:43,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528943620] [2024-11-09 04:34:43,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:43,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:43,709 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:43,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:43,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528943620] [2024-11-09 04:34:43,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528943620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:43,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:43,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:43,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582015540] [2024-11-09 04:34:43,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:43,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:43,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:43,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:43,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:43,711 INFO L87 Difference]: Start difference. First operand 7180 states and 22009 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:44,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:44,449 INFO L93 Difference]: Finished difference Result 11957 states and 36798 transitions. [2024-11-09 04:34:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 04:34:44,449 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:44,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:44,486 INFO L225 Difference]: With dead ends: 11957 [2024-11-09 04:34:44,486 INFO L226 Difference]: Without dead ends: 11940 [2024-11-09 04:34:44,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:34:44,491 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 145 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:44,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 352 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:34:44,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11940 states. [2024-11-09 04:34:44,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11940 to 7200. [2024-11-09 04:34:44,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7200 states, 7191 states have (on average 3.067584480600751) internal successors, (22059), 7199 states have internal predecessors, (22059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:44,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7200 states to 7200 states and 22059 transitions. [2024-11-09 04:34:44,673 INFO L78 Accepts]: Start accepts. Automaton has 7200 states and 22059 transitions. Word has length 63 [2024-11-09 04:34:44,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:44,673 INFO L471 AbstractCegarLoop]: Abstraction has 7200 states and 22059 transitions. [2024-11-09 04:34:44,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 7200 states and 22059 transitions. [2024-11-09 04:34:44,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:44,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:44,676 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:44,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2024-11-09 04:34:44,677 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:44,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:44,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1786138302, now seen corresponding path program 9 times [2024-11-09 04:34:44,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:44,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245417845] [2024-11-09 04:34:44,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:44,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:44,936 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:44,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:44,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245417845] [2024-11-09 04:34:44,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245417845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:44,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:44,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:44,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166153400] [2024-11-09 04:34:44,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:44,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:44,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:44,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:44,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:44,938 INFO L87 Difference]: Start difference. First operand 7200 states and 22059 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:45,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:45,577 INFO L93 Difference]: Finished difference Result 12079 states and 37145 transitions. [2024-11-09 04:34:45,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 04:34:45,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:45,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:45,617 INFO L225 Difference]: With dead ends: 12079 [2024-11-09 04:34:45,617 INFO L226 Difference]: Without dead ends: 12066 [2024-11-09 04:34:45,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2024-11-09 04:34:45,621 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 206 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:45,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 384 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:34:45,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12066 states. [2024-11-09 04:34:45,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12066 to 7190. [2024-11-09 04:34:45,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7190 states, 7181 states have (on average 3.0683748781506752) internal successors, (22034), 7189 states have internal predecessors, (22034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:45,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7190 states to 7190 states and 22034 transitions. [2024-11-09 04:34:45,804 INFO L78 Accepts]: Start accepts. Automaton has 7190 states and 22034 transitions. Word has length 63 [2024-11-09 04:34:45,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:45,804 INFO L471 AbstractCegarLoop]: Abstraction has 7190 states and 22034 transitions. [2024-11-09 04:34:45,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:45,804 INFO L276 IsEmpty]: Start isEmpty. Operand 7190 states and 22034 transitions. [2024-11-09 04:34:45,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:45,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:45,807 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:45,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2024-11-09 04:34:45,807 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:45,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:45,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1266395226, now seen corresponding path program 10 times [2024-11-09 04:34:45,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:45,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68518127] [2024-11-09 04:34:45,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:45,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:46,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:46,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68518127] [2024-11-09 04:34:46,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68518127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:46,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:46,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:46,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113743392] [2024-11-09 04:34:46,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:46,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:46,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:46,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:46,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:46,093 INFO L87 Difference]: Start difference. First operand 7190 states and 22034 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:46,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:46,598 INFO L93 Difference]: Finished difference Result 7593 states and 22989 transitions. [2024-11-09 04:34:46,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:34:46,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:46,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:46,621 INFO L225 Difference]: With dead ends: 7593 [2024-11-09 04:34:46,621 INFO L226 Difference]: Without dead ends: 7580 [2024-11-09 04:34:46,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:34:46,624 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 126 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:46,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 357 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:46,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7580 states. [2024-11-09 04:34:46,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7580 to 7215. [2024-11-09 04:34:46,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7215 states, 7206 states have (on average 3.064668331945601) internal successors, (22084), 7214 states have internal predecessors, (22084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:46,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7215 states to 7215 states and 22084 transitions. [2024-11-09 04:34:46,755 INFO L78 Accepts]: Start accepts. Automaton has 7215 states and 22084 transitions. Word has length 63 [2024-11-09 04:34:46,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:46,755 INFO L471 AbstractCegarLoop]: Abstraction has 7215 states and 22084 transitions. [2024-11-09 04:34:46,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:46,755 INFO L276 IsEmpty]: Start isEmpty. Operand 7215 states and 22084 transitions. [2024-11-09 04:34:46,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:46,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:46,757 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:46,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2024-11-09 04:34:46,758 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:46,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:46,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1788394834, now seen corresponding path program 11 times [2024-11-09 04:34:46,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:46,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060688641] [2024-11-09 04:34:46,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:46,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:46,992 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:46,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:46,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060688641] [2024-11-09 04:34:46,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060688641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:46,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:46,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:46,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271119953] [2024-11-09 04:34:46,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:46,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:46,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:46,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:46,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:46,994 INFO L87 Difference]: Start difference. First operand 7215 states and 22084 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:47,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:47,414 INFO L93 Difference]: Finished difference Result 11349 states and 35006 transitions. [2024-11-09 04:34:47,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:47,415 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:47,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:47,457 INFO L225 Difference]: With dead ends: 11349 [2024-11-09 04:34:47,457 INFO L226 Difference]: Without dead ends: 11328 [2024-11-09 04:34:47,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-09 04:34:47,461 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 138 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:47,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 353 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:47,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11328 states. [2024-11-09 04:34:47,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11328 to 7215. [2024-11-09 04:34:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7215 states, 7206 states have (on average 3.063280599500416) internal successors, (22074), 7214 states have internal predecessors, (22074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7215 states to 7215 states and 22074 transitions. [2024-11-09 04:34:47,618 INFO L78 Accepts]: Start accepts. Automaton has 7215 states and 22074 transitions. Word has length 63 [2024-11-09 04:34:47,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:47,619 INFO L471 AbstractCegarLoop]: Abstraction has 7215 states and 22074 transitions. [2024-11-09 04:34:47,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:47,619 INFO L276 IsEmpty]: Start isEmpty. Operand 7215 states and 22074 transitions. [2024-11-09 04:34:47,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:47,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:47,622 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:47,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2024-11-09 04:34:47,622 INFO L396 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:47,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:47,623 INFO L85 PathProgramCache]: Analyzing trace with hash -246528722, now seen corresponding path program 12 times [2024-11-09 04:34:47,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:47,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356784511] [2024-11-09 04:34:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:47,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:47,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:47,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356784511] [2024-11-09 04:34:47,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356784511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:47,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:47,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:47,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210268912] [2024-11-09 04:34:47,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:47,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:47,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:47,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:47,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:47,830 INFO L87 Difference]: Start difference. First operand 7215 states and 22074 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:48,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:48,312 INFO L93 Difference]: Finished difference Result 13124 states and 40378 transitions. [2024-11-09 04:34:48,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 04:34:48,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:48,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:48,352 INFO L225 Difference]: With dead ends: 13124 [2024-11-09 04:34:48,352 INFO L226 Difference]: Without dead ends: 13107 [2024-11-09 04:34:48,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:34:48,357 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 254 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:48,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 373 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13107 states. [2024-11-09 04:34:48,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13107 to 7225. [2024-11-09 04:34:48,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7225 states, 7216 states have (on average 3.0625) internal successors, (22099), 7224 states have internal predecessors, (22099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:48,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7225 states to 7225 states and 22099 transitions. [2024-11-09 04:34:48,524 INFO L78 Accepts]: Start accepts. Automaton has 7225 states and 22099 transitions. Word has length 63 [2024-11-09 04:34:48,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:48,524 INFO L471 AbstractCegarLoop]: Abstraction has 7225 states and 22099 transitions. [2024-11-09 04:34:48,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:48,525 INFO L276 IsEmpty]: Start isEmpty. Operand 7225 states and 22099 transitions. [2024-11-09 04:34:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:48,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:48,527 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:48,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2024-11-09 04:34:48,527 INFO L396 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:48,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:48,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1023936750, now seen corresponding path program 13 times [2024-11-09 04:34:48,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:48,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037741889] [2024-11-09 04:34:48,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:48,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:48,786 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:48,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:48,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037741889] [2024-11-09 04:34:48,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037741889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:48,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:48,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:48,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909278051] [2024-11-09 04:34:48,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:48,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:48,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:48,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:48,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:48,788 INFO L87 Difference]: Start difference. First operand 7225 states and 22099 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:49,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:49,467 INFO L93 Difference]: Finished difference Result 13204 states and 40622 transitions. [2024-11-09 04:34:49,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 04:34:49,467 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:49,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:49,508 INFO L225 Difference]: With dead ends: 13204 [2024-11-09 04:34:49,508 INFO L226 Difference]: Without dead ends: 13191 [2024-11-09 04:34:49,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2024-11-09 04:34:49,513 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 360 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:49,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 372 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:34:49,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13191 states. [2024-11-09 04:34:49,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13191 to 7205. [2024-11-09 04:34:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7205 states, 7196 states have (on average 3.064063368538077) internal successors, (22049), 7204 states have internal predecessors, (22049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:49,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7205 states to 7205 states and 22049 transitions. [2024-11-09 04:34:49,690 INFO L78 Accepts]: Start accepts. Automaton has 7205 states and 22049 transitions. Word has length 63 [2024-11-09 04:34:49,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:49,691 INFO L471 AbstractCegarLoop]: Abstraction has 7205 states and 22049 transitions. [2024-11-09 04:34:49,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:49,691 INFO L276 IsEmpty]: Start isEmpty. Operand 7205 states and 22049 transitions. [2024-11-09 04:34:49,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:49,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:49,694 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:49,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2024-11-09 04:34:49,694 INFO L396 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:49,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:49,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1356534908, now seen corresponding path program 14 times [2024-11-09 04:34:49,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:49,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343809679] [2024-11-09 04:34:49,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:49,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:49,979 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:49,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:49,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343809679] [2024-11-09 04:34:49,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343809679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:49,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:49,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:49,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159949825] [2024-11-09 04:34:49,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:49,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:49,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:49,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:49,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:49,981 INFO L87 Difference]: Start difference. First operand 7205 states and 22049 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:50,477 INFO L93 Difference]: Finished difference Result 11982 states and 36838 transitions. [2024-11-09 04:34:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:34:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:50,526 INFO L225 Difference]: With dead ends: 11982 [2024-11-09 04:34:50,526 INFO L226 Difference]: Without dead ends: 11965 [2024-11-09 04:34:50,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:34:50,532 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 151 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:50,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 336 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:50,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11965 states. [2024-11-09 04:34:50,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11965 to 7225. [2024-11-09 04:34:50,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7225 states, 7216 states have (on average 3.0625) internal successors, (22099), 7224 states have internal predecessors, (22099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:50,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7225 states to 7225 states and 22099 transitions. [2024-11-09 04:34:50,751 INFO L78 Accepts]: Start accepts. Automaton has 7225 states and 22099 transitions. Word has length 63 [2024-11-09 04:34:50,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:50,752 INFO L471 AbstractCegarLoop]: Abstraction has 7225 states and 22099 transitions. [2024-11-09 04:34:50,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 7225 states and 22099 transitions. [2024-11-09 04:34:50,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:50,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:50,758 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:50,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2024-11-09 04:34:50,758 INFO L396 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:50,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:50,758 INFO L85 PathProgramCache]: Analyzing trace with hash 579126880, now seen corresponding path program 15 times [2024-11-09 04:34:50,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:50,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98991101] [2024-11-09 04:34:50,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:50,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:51,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:51,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98991101] [2024-11-09 04:34:51,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98991101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:51,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:51,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:51,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104902316] [2024-11-09 04:34:51,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:51,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:51,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:51,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:51,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:51,023 INFO L87 Difference]: Start difference. First operand 7225 states and 22099 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:51,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:51,601 INFO L93 Difference]: Finished difference Result 12104 states and 37185 transitions. [2024-11-09 04:34:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 04:34:51,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:51,640 INFO L225 Difference]: With dead ends: 12104 [2024-11-09 04:34:51,640 INFO L226 Difference]: Without dead ends: 12091 [2024-11-09 04:34:51,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:34:51,645 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 214 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:51,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 352 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:51,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12091 states. [2024-11-09 04:34:51,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12091 to 7215. [2024-11-09 04:34:51,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7215 states, 7206 states have (on average 3.063280599500416) internal successors, (22074), 7214 states have internal predecessors, (22074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:51,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7215 states to 7215 states and 22074 transitions. [2024-11-09 04:34:51,867 INFO L78 Accepts]: Start accepts. Automaton has 7215 states and 22074 transitions. Word has length 63 [2024-11-09 04:34:51,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:51,867 INFO L471 AbstractCegarLoop]: Abstraction has 7215 states and 22074 transitions. [2024-11-09 04:34:51,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:51,867 INFO L276 IsEmpty]: Start isEmpty. Operand 7215 states and 22074 transitions. [2024-11-09 04:34:51,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:51,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:51,870 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:51,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2024-11-09 04:34:51,870 INFO L396 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:51,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:51,871 INFO L85 PathProgramCache]: Analyzing trace with hash 59383804, now seen corresponding path program 16 times [2024-11-09 04:34:51,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:51,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129039022] [2024-11-09 04:34:51,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:51,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:52,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:52,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129039022] [2024-11-09 04:34:52,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129039022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:52,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:52,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:52,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240251869] [2024-11-09 04:34:52,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:52,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:52,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:52,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:52,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:52,139 INFO L87 Difference]: Start difference. First operand 7215 states and 22074 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:52,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:52,657 INFO L93 Difference]: Finished difference Result 7618 states and 23029 transitions. [2024-11-09 04:34:52,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:34:52,658 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:52,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:52,702 INFO L225 Difference]: With dead ends: 7618 [2024-11-09 04:34:52,702 INFO L226 Difference]: Without dead ends: 7605 [2024-11-09 04:34:52,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:34:52,707 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 128 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:52,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 337 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:52,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7605 states. [2024-11-09 04:34:52,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7605 to 7195. [2024-11-09 04:34:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7195 states, 7186 states have (on average 3.0648483161703313) internal successors, (22024), 7194 states have internal predecessors, (22024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7195 states to 7195 states and 22024 transitions. [2024-11-09 04:34:52,913 INFO L78 Accepts]: Start accepts. Automaton has 7195 states and 22024 transitions. Word has length 63 [2024-11-09 04:34:52,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:52,913 INFO L471 AbstractCegarLoop]: Abstraction has 7195 states and 22024 transitions. [2024-11-09 04:34:52,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:52,914 INFO L276 IsEmpty]: Start isEmpty. Operand 7195 states and 22024 transitions. [2024-11-09 04:34:52,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:52,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:52,917 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:52,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2024-11-09 04:34:52,917 INFO L396 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:52,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:52,918 INFO L85 PathProgramCache]: Analyzing trace with hash 18246152, now seen corresponding path program 17 times [2024-11-09 04:34:52,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:52,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188067795] [2024-11-09 04:34:52,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:52,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:53,182 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:53,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:53,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188067795] [2024-11-09 04:34:53,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188067795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:53,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:53,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:53,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014173800] [2024-11-09 04:34:53,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:53,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:53,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:53,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:53,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:53,185 INFO L87 Difference]: Start difference. First operand 7195 states and 22024 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:53,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:53,857 INFO L93 Difference]: Finished difference Result 12379 states and 37730 transitions. [2024-11-09 04:34:53,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 04:34:53,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:53,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:53,913 INFO L225 Difference]: With dead ends: 12379 [2024-11-09 04:34:53,914 INFO L226 Difference]: Without dead ends: 12362 [2024-11-09 04:34:53,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:34:53,920 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 225 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:53,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 429 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:34:53,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12362 states. [2024-11-09 04:34:54,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12362 to 7195. [2024-11-09 04:34:54,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7195 states, 7186 states have (on average 3.0634567214027277) internal successors, (22014), 7194 states have internal predecessors, (22014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:54,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7195 states to 7195 states and 22014 transitions. [2024-11-09 04:34:54,106 INFO L78 Accepts]: Start accepts. Automaton has 7195 states and 22014 transitions. Word has length 63 [2024-11-09 04:34:54,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:54,107 INFO L471 AbstractCegarLoop]: Abstraction has 7195 states and 22014 transitions. [2024-11-09 04:34:54,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:54,107 INFO L276 IsEmpty]: Start isEmpty. Operand 7195 states and 22014 transitions. [2024-11-09 04:34:54,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:54,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:54,109 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:54,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2024-11-09 04:34:54,110 INFO L396 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:54,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:54,110 INFO L85 PathProgramCache]: Analyzing trace with hash -759161876, now seen corresponding path program 18 times [2024-11-09 04:34:54,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:54,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343929966] [2024-11-09 04:34:54,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:54,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:54,341 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:54,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:54,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343929966] [2024-11-09 04:34:54,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343929966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:54,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:54,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:54,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744530048] [2024-11-09 04:34:54,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:54,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:54,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:54,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:54,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:54,343 INFO L87 Difference]: Start difference. First operand 7195 states and 22014 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:54,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:54,976 INFO L93 Difference]: Finished difference Result 12501 states and 38077 transitions. [2024-11-09 04:34:54,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 04:34:54,976 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:54,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:55,016 INFO L225 Difference]: With dead ends: 12501 [2024-11-09 04:34:55,016 INFO L226 Difference]: Without dead ends: 12488 [2024-11-09 04:34:55,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2024-11-09 04:34:55,021 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 307 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:55,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 453 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:34:55,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12488 states. [2024-11-09 04:34:55,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12488 to 7185. [2024-11-09 04:34:55,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7185 states, 7176 states have (on average 3.064241917502787) internal successors, (21989), 7184 states have internal predecessors, (21989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:55,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7185 states to 7185 states and 21989 transitions. [2024-11-09 04:34:55,198 INFO L78 Accepts]: Start accepts. Automaton has 7185 states and 21989 transitions. Word has length 63 [2024-11-09 04:34:55,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:55,198 INFO L471 AbstractCegarLoop]: Abstraction has 7185 states and 21989 transitions. [2024-11-09 04:34:55,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:55,198 INFO L276 IsEmpty]: Start isEmpty. Operand 7185 states and 21989 transitions. [2024-11-09 04:34:55,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:55,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:55,200 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:55,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2024-11-09 04:34:55,201 INFO L396 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:55,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:55,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1278904952, now seen corresponding path program 19 times [2024-11-09 04:34:55,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:55,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097279227] [2024-11-09 04:34:55,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:55,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:55,402 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:55,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:55,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097279227] [2024-11-09 04:34:55,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097279227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:55,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:55,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:55,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295902565] [2024-11-09 04:34:55,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:55,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:55,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:55,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:55,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:55,405 INFO L87 Difference]: Start difference. First operand 7185 states and 21989 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:55,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:55,923 INFO L93 Difference]: Finished difference Result 8073 states and 24066 transitions. [2024-11-09 04:34:55,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 04:34:55,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:55,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:55,946 INFO L225 Difference]: With dead ends: 8073 [2024-11-09 04:34:55,946 INFO L226 Difference]: Without dead ends: 8060 [2024-11-09 04:34:55,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:34:55,949 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 198 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:55,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 407 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:55,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8060 states. [2024-11-09 04:34:56,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8060 to 7175. [2024-11-09 04:34:56,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7175 states, 7166 states have (on average 3.065029305051633) internal successors, (21964), 7174 states have internal predecessors, (21964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7175 states to 7175 states and 21964 transitions. [2024-11-09 04:34:56,080 INFO L78 Accepts]: Start accepts. Automaton has 7175 states and 21964 transitions. Word has length 63 [2024-11-09 04:34:56,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:56,080 INFO L471 AbstractCegarLoop]: Abstraction has 7175 states and 21964 transitions. [2024-11-09 04:34:56,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:56,080 INFO L276 IsEmpty]: Start isEmpty. Operand 7175 states and 21964 transitions. [2024-11-09 04:34:56,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:56,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:56,082 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:56,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2024-11-09 04:34:56,082 INFO L396 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:56,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:56,083 INFO L85 PathProgramCache]: Analyzing trace with hash -748926702, now seen corresponding path program 20 times [2024-11-09 04:34:56,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:56,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463548605] [2024-11-09 04:34:56,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:56,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:56,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:56,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463548605] [2024-11-09 04:34:56,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463548605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:56,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:56,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:56,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252666034] [2024-11-09 04:34:56,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:56,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:56,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:56,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:56,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:56,305 INFO L87 Difference]: Start difference. First operand 7175 states and 21964 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:56,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:56,744 INFO L93 Difference]: Finished difference Result 8013 states and 23916 transitions. [2024-11-09 04:34:56,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:34:56,745 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:56,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:56,768 INFO L225 Difference]: With dead ends: 8013 [2024-11-09 04:34:56,768 INFO L226 Difference]: Without dead ends: 8000 [2024-11-09 04:34:56,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:34:56,772 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 221 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:56,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 478 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:56,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8000 states. [2024-11-09 04:34:56,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8000 to 7374. [2024-11-09 04:34:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7374 states, 7365 states have (on average 3.0475220638153426) internal successors, (22445), 7373 states have internal predecessors, (22445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:56,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7374 states to 7374 states and 22445 transitions. [2024-11-09 04:34:56,901 INFO L78 Accepts]: Start accepts. Automaton has 7374 states and 22445 transitions. Word has length 63 [2024-11-09 04:34:56,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:56,902 INFO L471 AbstractCegarLoop]: Abstraction has 7374 states and 22445 transitions. [2024-11-09 04:34:56,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:56,902 INFO L276 IsEmpty]: Start isEmpty. Operand 7374 states and 22445 transitions. [2024-11-09 04:34:56,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:56,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:56,904 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:56,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2024-11-09 04:34:56,904 INFO L396 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:56,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:56,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1860947208, now seen corresponding path program 1 times [2024-11-09 04:34:56,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:56,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740380218] [2024-11-09 04:34:56,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:56,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:57,087 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:57,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:57,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740380218] [2024-11-09 04:34:57,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740380218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:57,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:57,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:57,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339928742] [2024-11-09 04:34:57,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:57,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:57,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:57,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:57,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:57,089 INFO L87 Difference]: Start difference. First operand 7374 states and 22445 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:57,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:57,540 INFO L93 Difference]: Finished difference Result 7916 states and 23670 transitions. [2024-11-09 04:34:57,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:34:57,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:57,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:57,579 INFO L225 Difference]: With dead ends: 7916 [2024-11-09 04:34:57,579 INFO L226 Difference]: Without dead ends: 7903 [2024-11-09 04:34:57,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:34:57,583 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 219 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:57,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 457 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:57,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7903 states. [2024-11-09 04:34:57,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7903 to 7414. [2024-11-09 04:34:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7414 states, 7405 states have (on average 3.0418636056718436) internal successors, (22525), 7413 states have internal predecessors, (22525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:57,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7414 states to 7414 states and 22525 transitions. [2024-11-09 04:34:57,771 INFO L78 Accepts]: Start accepts. Automaton has 7414 states and 22525 transitions. Word has length 63 [2024-11-09 04:34:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:57,771 INFO L471 AbstractCegarLoop]: Abstraction has 7414 states and 22525 transitions. [2024-11-09 04:34:57,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 7414 states and 22525 transitions. [2024-11-09 04:34:57,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:57,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:57,773 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:57,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2024-11-09 04:34:57,774 INFO L396 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:57,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:57,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1534061832, now seen corresponding path program 2 times [2024-11-09 04:34:57,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:57,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735155701] [2024-11-09 04:34:57,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:57,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:57,976 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:57,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:57,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735155701] [2024-11-09 04:34:57,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735155701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:57,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:57,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:57,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069808228] [2024-11-09 04:34:57,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:57,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:57,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:57,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:57,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:57,977 INFO L87 Difference]: Start difference. First operand 7414 states and 22525 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:58,447 INFO L93 Difference]: Finished difference Result 7966 states and 23775 transitions. [2024-11-09 04:34:58,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 04:34:58,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:58,473 INFO L225 Difference]: With dead ends: 7966 [2024-11-09 04:34:58,473 INFO L226 Difference]: Without dead ends: 7953 [2024-11-09 04:34:58,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:34:58,476 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 183 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:58,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 403 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:58,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7953 states. [2024-11-09 04:34:58,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7953 to 7424. [2024-11-09 04:34:58,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7424 states, 7415 states have (on average 3.0411328388401886) internal successors, (22550), 7423 states have internal predecessors, (22550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:58,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7424 states to 7424 states and 22550 transitions. [2024-11-09 04:34:58,611 INFO L78 Accepts]: Start accepts. Automaton has 7424 states and 22550 transitions. Word has length 63 [2024-11-09 04:34:58,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:58,612 INFO L471 AbstractCegarLoop]: Abstraction has 7424 states and 22550 transitions. [2024-11-09 04:34:58,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:58,612 INFO L276 IsEmpty]: Start isEmpty. Operand 7424 states and 22550 transitions. [2024-11-09 04:34:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:58,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:58,614 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:58,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2024-11-09 04:34:58,615 INFO L396 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:58,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:58,615 INFO L85 PathProgramCache]: Analyzing trace with hash -500861724, now seen corresponding path program 3 times [2024-11-09 04:34:58,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:58,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121254444] [2024-11-09 04:34:58,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:58,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:58,785 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:58,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:58,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121254444] [2024-11-09 04:34:58,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121254444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:58,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:58,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:58,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466714422] [2024-11-09 04:34:58,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:58,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:34:58,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:58,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:34:58,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:58,788 INFO L87 Difference]: Start difference. First operand 7424 states and 22550 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:59,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:59,388 INFO L93 Difference]: Finished difference Result 12516 states and 38167 transitions. [2024-11-09 04:34:59,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 04:34:59,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 04:34:59,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:59,417 INFO L225 Difference]: With dead ends: 12516 [2024-11-09 04:34:59,417 INFO L226 Difference]: Without dead ends: 12503 [2024-11-09 04:34:59,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2024-11-09 04:34:59,420 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 306 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:59,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 398 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:34:59,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12503 states. [2024-11-09 04:34:59,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12503 to 7434. [2024-11-09 04:34:59,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7434 states, 7425 states have (on average 3.041750841750842) internal successors, (22585), 7433 states have internal predecessors, (22585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:59,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7434 states to 7434 states and 22585 transitions. [2024-11-09 04:34:59,565 INFO L78 Accepts]: Start accepts. Automaton has 7434 states and 22585 transitions. Word has length 63 [2024-11-09 04:34:59,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:59,565 INFO L471 AbstractCegarLoop]: Abstraction has 7434 states and 22585 transitions. [2024-11-09 04:34:59,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:59,566 INFO L276 IsEmpty]: Start isEmpty. Operand 7434 states and 22585 transitions. [2024-11-09 04:34:59,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:34:59,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:59,568 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:59,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2024-11-09 04:34:59,568 INFO L396 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:34:59,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:59,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1278269752, now seen corresponding path program 4 times [2024-11-09 04:34:59,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:59,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892818569] [2024-11-09 04:34:59,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:59,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:34:59,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:59,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892818569] [2024-11-09 04:34:59,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892818569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:59,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:59,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:34:59,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033520791] [2024-11-09 04:34:59,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton WARNING: YOUR LOGFILE WAS TOO LONG, SOME LINES IN THE MIDDLE WERE REMOVED. [2024-11-09 04:37:15,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110132699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:15,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:15,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:37:15,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802499252] [2024-11-09 04:37:15,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:15,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:37:15,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:15,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:37:15,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:37:15,678 INFO L87 Difference]: Start difference. First operand 9364 states and 26071 transitions. Second operand has 16 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:17,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:17,548 INFO L93 Difference]: Finished difference Result 11260 states and 30603 transitions. [2024-11-09 04:37:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 04:37:17,548 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:37:17,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:17,581 INFO L225 Difference]: With dead ends: 11260 [2024-11-09 04:37:17,581 INFO L226 Difference]: Without dead ends: 11047 [2024-11-09 04:37:17,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2024-11-09 04:37:17,585 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 269 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 2093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:17,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 195 Invalid, 2093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2087 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:37:17,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11047 states. [2024-11-09 04:37:17,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11047 to 9422. [2024-11-09 04:37:17,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9422 states, 9413 states have (on average 2.785721874004037) internal successors, (26222), 9421 states have internal predecessors, (26222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:17,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9422 states to 9422 states and 26222 transitions. [2024-11-09 04:37:17,757 INFO L78 Accepts]: Start accepts. Automaton has 9422 states and 26222 transitions. Word has length 65 [2024-11-09 04:37:17,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:17,757 INFO L471 AbstractCegarLoop]: Abstraction has 9422 states and 26222 transitions. [2024-11-09 04:37:17,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:17,757 INFO L276 IsEmpty]: Start isEmpty. Operand 9422 states and 26222 transitions. [2024-11-09 04:37:17,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:37:17,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:17,760 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:17,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2024-11-09 04:37:17,761 INFO L396 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:37:17,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:17,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1170644819, now seen corresponding path program 28 times [2024-11-09 04:37:17,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:17,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498126231] [2024-11-09 04:37:17,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:17,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:18,439 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:37:18,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:18,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498126231] [2024-11-09 04:37:18,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498126231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:18,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:18,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:37:18,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401682738] [2024-11-09 04:37:18,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:18,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:37:18,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:18,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:37:18,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:37:18,441 INFO L87 Difference]: Start difference. First operand 9422 states and 26222 transitions. Second operand has 16 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:20,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:20,626 INFO L93 Difference]: Finished difference Result 11471 states and 31124 transitions. [2024-11-09 04:37:20,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 04:37:20,626 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:37:20,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:20,659 INFO L225 Difference]: With dead ends: 11471 [2024-11-09 04:37:20,659 INFO L226 Difference]: Without dead ends: 11250 [2024-11-09 04:37:20,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=351, Invalid=1209, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 04:37:20,664 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 315 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 2338 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:20,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 199 Invalid, 2354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2338 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 04:37:20,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11250 states. [2024-11-09 04:37:20,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11250 to 9434. [2024-11-09 04:37:20,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9434 states, 9425 states have (on average 2.786206896551724) internal successors, (26260), 9433 states have internal predecessors, (26260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9434 states to 9434 states and 26260 transitions. [2024-11-09 04:37:20,844 INFO L78 Accepts]: Start accepts. Automaton has 9434 states and 26260 transitions. Word has length 65 [2024-11-09 04:37:20,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:20,844 INFO L471 AbstractCegarLoop]: Abstraction has 9434 states and 26260 transitions. [2024-11-09 04:37:20,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:20,844 INFO L276 IsEmpty]: Start isEmpty. Operand 9434 states and 26260 transitions. [2024-11-09 04:37:20,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:37:20,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:20,848 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:20,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2024-11-09 04:37:20,848 INFO L396 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:37:20,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:20,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1742899695, now seen corresponding path program 29 times [2024-11-09 04:37:20,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:20,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621750779] [2024-11-09 04:37:20,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:20,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:23,121 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:37:23,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:23,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621750779] [2024-11-09 04:37:23,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621750779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:37:23,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829441747] [2024-11-09 04:37:23,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:37:23,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:37:23,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:37:23,125 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:37:23,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 04:37:23,500 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 04:37:23,500 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:37:23,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 04:37:23,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:37:23,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:37:23,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2024-11-09 04:37:23,895 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:37:23,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:37:23,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829441747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:23,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:37:23,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [29] total 38 [2024-11-09 04:37:23,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119226492] [2024-11-09 04:37:23,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:23,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:37:23,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:23,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:37:23,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1256, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 04:37:23,897 INFO L87 Difference]: Start difference. First operand 9434 states and 26260 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:26,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:26,002 INFO L93 Difference]: Finished difference Result 12018 states and 32642 transitions. [2024-11-09 04:37:26,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 04:37:26,002 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:37:26,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:26,043 INFO L225 Difference]: With dead ends: 12018 [2024-11-09 04:37:26,043 INFO L226 Difference]: Without dead ends: 11765 [2024-11-09 04:37:26,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=337, Invalid=2969, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 04:37:26,049 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 308 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:26,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 411 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:37:26,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11765 states. [2024-11-09 04:37:26,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11765 to 9416. [2024-11-09 04:37:26,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9416 states, 9407 states have (on average 2.7865419368555333) internal successors, (26213), 9415 states have internal predecessors, (26213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:26,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9416 states to 9416 states and 26213 transitions. [2024-11-09 04:37:26,297 INFO L78 Accepts]: Start accepts. Automaton has 9416 states and 26213 transitions. Word has length 65 [2024-11-09 04:37:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:26,298 INFO L471 AbstractCegarLoop]: Abstraction has 9416 states and 26213 transitions. [2024-11-09 04:37:26,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:26,298 INFO L276 IsEmpty]: Start isEmpty. Operand 9416 states and 26213 transitions. [2024-11-09 04:37:26,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:37:26,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:26,302 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:26,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-09 04:37:26,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:37:26,503 INFO L396 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:37:26,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash -116363389, now seen corresponding path program 30 times [2024-11-09 04:37:26,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:26,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928625426] [2024-11-09 04:37:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:26,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:37:27,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:27,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928625426] [2024-11-09 04:37:27,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928625426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:37:27,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454779559] [2024-11-09 04:37:27,993 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:37:27,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:37:27,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:37:27,996 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:37:28,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 04:37:28,389 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:37:28,389 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:37:28,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 04:37:28,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:37:28,658 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:37:28,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2024-11-09 04:37:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:37:28,674 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:37:28,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454779559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:28,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:37:28,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21] total 28 [2024-11-09 04:37:28,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314352974] [2024-11-09 04:37:28,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:28,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:37:28,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:28,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:37:28,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2024-11-09 04:37:28,676 INFO L87 Difference]: Start difference. First operand 9416 states and 26213 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:30,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:30,205 INFO L93 Difference]: Finished difference Result 12742 states and 34598 transitions. [2024-11-09 04:37:30,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 04:37:30,206 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:37:30,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:30,252 INFO L225 Difference]: With dead ends: 12742 [2024-11-09 04:37:30,252 INFO L226 Difference]: Without dead ends: 12489 [2024-11-09 04:37:30,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=1505, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:37:30,258 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 253 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:30,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 275 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 04:37:30,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12489 states. [2024-11-09 04:37:30,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12489 to 9458. [2024-11-09 04:37:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9458 states, 9449 states have (on average 2.7871732458461214) internal successors, (26336), 9457 states have internal predecessors, (26336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:30,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9458 states to 9458 states and 26336 transitions. [2024-11-09 04:37:30,474 INFO L78 Accepts]: Start accepts. Automaton has 9458 states and 26336 transitions. Word has length 65 [2024-11-09 04:37:30,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:30,475 INFO L471 AbstractCegarLoop]: Abstraction has 9458 states and 26336 transitions. [2024-11-09 04:37:30,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:30,475 INFO L276 IsEmpty]: Start isEmpty. Operand 9458 states and 26336 transitions. [2024-11-09 04:37:30,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:37:30,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:30,479 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:30,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-09 04:37:30,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:37:30,679 INFO L396 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:37:30,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:30,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1292396051, now seen corresponding path program 31 times [2024-11-09 04:37:30,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:30,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106517202] [2024-11-09 04:37:30,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:30,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:31,820 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:37:31,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:31,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106517202] [2024-11-09 04:37:31,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106517202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:31,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:31,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-09 04:37:31,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360528007] [2024-11-09 04:37:31,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:31,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 04:37:31,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:31,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 04:37:31,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:37:31,822 INFO L87 Difference]: Start difference. First operand 9458 states and 26336 transitions. Second operand has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:35,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:35,214 INFO L93 Difference]: Finished difference Result 11519 states and 31281 transitions. [2024-11-09 04:37:35,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-09 04:37:35,214 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:37:35,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:35,254 INFO L225 Difference]: With dead ends: 11519 [2024-11-09 04:37:35,255 INFO L226 Difference]: Without dead ends: 11109 [2024-11-09 04:37:35,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=474, Invalid=2178, Unknown=0, NotChecked=0, Total=2652 [2024-11-09 04:37:35,261 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 451 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 2875 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 2887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:35,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 331 Invalid, 2887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2875 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 04:37:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11109 states. [2024-11-09 04:37:35,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11109 to 9596. [2024-11-09 04:37:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9596 states, 9587 states have (on average 2.788463544383019) internal successors, (26733), 9595 states have internal predecessors, (26733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:35,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9596 states to 9596 states and 26733 transitions. [2024-11-09 04:37:35,492 INFO L78 Accepts]: Start accepts. Automaton has 9596 states and 26733 transitions. Word has length 65 [2024-11-09 04:37:35,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:35,492 INFO L471 AbstractCegarLoop]: Abstraction has 9596 states and 26733 transitions. [2024-11-09 04:37:35,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand 9596 states and 26733 transitions. [2024-11-09 04:37:35,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:37:35,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:35,497 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:35,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2024-11-09 04:37:35,497 INFO L396 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:37:35,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:35,497 INFO L85 PathProgramCache]: Analyzing trace with hash 904746695, now seen corresponding path program 32 times [2024-11-09 04:37:35,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:35,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359946903] [2024-11-09 04:37:35,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:35,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:36,248 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:37:36,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:36,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359946903] [2024-11-09 04:37:36,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359946903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:36,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:36,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 04:37:36,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771216456] [2024-11-09 04:37:36,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:36,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 04:37:36,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:36,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 04:37:36,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:37:36,250 INFO L87 Difference]: Start difference. First operand 9596 states and 26733 transitions. Second operand has 18 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 17 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:39,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:39,163 INFO L93 Difference]: Finished difference Result 11534 states and 31382 transitions. [2024-11-09 04:37:39,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 04:37:39,163 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 17 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:37:39,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:39,201 INFO L225 Difference]: With dead ends: 11534 [2024-11-09 04:37:39,201 INFO L226 Difference]: Without dead ends: 11296 [2024-11-09 04:37:39,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=392, Invalid=1414, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 04:37:39,206 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 317 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:39,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 248 Invalid, 2511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 04:37:39,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11296 states. [2024-11-09 04:37:39,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11296 to 9602. [2024-11-09 04:37:39,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9602 states, 9593 states have (on average 2.789117064526217) internal successors, (26756), 9601 states have internal predecessors, (26756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:39,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9602 states to 9602 states and 26756 transitions. [2024-11-09 04:37:39,418 INFO L78 Accepts]: Start accepts. Automaton has 9602 states and 26756 transitions. Word has length 65 [2024-11-09 04:37:39,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:39,418 INFO L471 AbstractCegarLoop]: Abstraction has 9602 states and 26756 transitions. [2024-11-09 04:37:39,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 17 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:39,418 INFO L276 IsEmpty]: Start isEmpty. Operand 9602 states and 26756 transitions. [2024-11-09 04:37:39,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:37:39,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:39,423 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:39,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2024-11-09 04:37:39,423 INFO L396 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:37:39,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:39,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1589384371, now seen corresponding path program 33 times [2024-11-09 04:37:39,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:39,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093681205] [2024-11-09 04:37:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:39,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:37:40,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:40,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093681205] [2024-11-09 04:37:40,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093681205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:40,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:40,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-09 04:37:40,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595120233] [2024-11-09 04:37:40,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:40,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 04:37:40,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:40,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 04:37:40,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:37:40,570 INFO L87 Difference]: Start difference. First operand 9602 states and 26756 transitions. Second operand has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:44,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:44,612 INFO L93 Difference]: Finished difference Result 10964 states and 29961 transitions. [2024-11-09 04:37:44,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-09 04:37:44,613 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:37:44,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:44,653 INFO L225 Difference]: With dead ends: 10964 [2024-11-09 04:37:44,654 INFO L226 Difference]: Without dead ends: 10951 [2024-11-09 04:37:44,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=614, Invalid=2356, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 04:37:44,658 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 455 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 2972 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:44,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 303 Invalid, 2987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2972 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 04:37:44,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10951 states. [2024-11-09 04:37:44,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10951 to 9602. [2024-11-09 04:37:44,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9602 states, 9593 states have (on average 2.789117064526217) internal successors, (26756), 9601 states have internal predecessors, (26756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:44,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9602 states to 9602 states and 26756 transitions. [2024-11-09 04:37:44,862 INFO L78 Accepts]: Start accepts. Automaton has 9602 states and 26756 transitions. Word has length 65 [2024-11-09 04:37:44,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:44,862 INFO L471 AbstractCegarLoop]: Abstraction has 9602 states and 26756 transitions. [2024-11-09 04:37:44,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:44,862 INFO L276 IsEmpty]: Start isEmpty. Operand 9602 states and 26756 transitions. [2024-11-09 04:37:44,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:37:44,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:44,866 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:44,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2024-11-09 04:37:44,866 INFO L396 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:37:44,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:44,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1889938219, now seen corresponding path program 34 times [2024-11-09 04:37:44,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:44,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601089480] [2024-11-09 04:37:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:44,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:37:45,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:45,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601089480] [2024-11-09 04:37:45,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601089480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:45,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:45,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-09 04:37:45,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059446099] [2024-11-09 04:37:45,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:45,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 04:37:45,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:45,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 04:37:45,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:37:45,609 INFO L87 Difference]: Start difference. First operand 9602 states and 26756 transitions. Second operand has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:47,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:47,485 INFO L93 Difference]: Finished difference Result 12354 states and 33665 transitions. [2024-11-09 04:37:47,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 04:37:47,485 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:37:47,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:47,521 INFO L225 Difference]: With dead ends: 12354 [2024-11-09 04:37:47,521 INFO L226 Difference]: Without dead ends: 12149 [2024-11-09 04:37:47,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=242, Invalid=814, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 04:37:47,526 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 338 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:47,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 266 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:37:47,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12149 states. [2024-11-09 04:37:47,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12149 to 9470. [2024-11-09 04:37:47,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9470 states, 9461 states have (on average 2.789345735123137) internal successors, (26390), 9469 states have internal predecessors, (26390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:47,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9470 states to 9470 states and 26390 transitions. [2024-11-09 04:37:47,718 INFO L78 Accepts]: Start accepts. Automaton has 9470 states and 26390 transitions. Word has length 65 [2024-11-09 04:37:47,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:47,718 INFO L471 AbstractCegarLoop]: Abstraction has 9470 states and 26390 transitions. [2024-11-09 04:37:47,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:47,719 INFO L276 IsEmpty]: Start isEmpty. Operand 9470 states and 26390 transitions. [2024-11-09 04:37:47,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:37:47,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:47,722 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:47,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2024-11-09 04:37:47,722 INFO L396 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:37:47,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:47,722 INFO L85 PathProgramCache]: Analyzing trace with hash 299839069, now seen corresponding path program 35 times [2024-11-09 04:37:47,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:47,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621100566] [2024-11-09 04:37:47,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:47,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:37:48,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:48,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621100566] [2024-11-09 04:37:48,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621100566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:48,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:48,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-09 04:37:48,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953894314] [2024-11-09 04:37:48,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:48,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 04:37:48,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:48,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 04:37:48,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:37:48,383 INFO L87 Difference]: Start difference. First operand 9470 states and 26390 transitions. Second operand has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:50,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:50,616 INFO L93 Difference]: Finished difference Result 13027 states and 35605 transitions. [2024-11-09 04:37:50,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 04:37:50,617 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:37:50,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:50,656 INFO L225 Difference]: With dead ends: 13027 [2024-11-09 04:37:50,656 INFO L226 Difference]: Without dead ends: 12818 [2024-11-09 04:37:50,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=364, Invalid=1118, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 04:37:50,661 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 321 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:50,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 289 Invalid, 2174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 04:37:50,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12818 states. [2024-11-09 04:37:50,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12818 to 9462. [2024-11-09 04:37:50,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9462 states, 9453 states have (on average 2.789167460065588) internal successors, (26366), 9461 states have internal predecessors, (26366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:50,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9462 states to 9462 states and 26366 transitions. [2024-11-09 04:37:50,841 INFO L78 Accepts]: Start accepts. Automaton has 9462 states and 26366 transitions. Word has length 65 [2024-11-09 04:37:50,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:50,842 INFO L471 AbstractCegarLoop]: Abstraction has 9462 states and 26366 transitions. [2024-11-09 04:37:50,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:50,842 INFO L276 IsEmpty]: Start isEmpty. Operand 9462 states and 26366 transitions. [2024-11-09 04:37:50,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:37:50,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:50,845 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:50,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2024-11-09 04:37:50,845 INFO L396 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:37:50,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:50,846 INFO L85 PathProgramCache]: Analyzing trace with hash -828885207, now seen corresponding path program 36 times [2024-11-09 04:37:50,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:50,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638009741] [2024-11-09 04:37:50,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:50,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:37:51,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:51,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638009741] [2024-11-09 04:37:51,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638009741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:51,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:51,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-09 04:37:51,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324284475] [2024-11-09 04:37:51,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:51,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 04:37:51,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:51,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 04:37:51,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:37:51,729 INFO L87 Difference]: Start difference. First operand 9462 states and 26366 transitions. Second operand has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:54,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:54,875 INFO L93 Difference]: Finished difference Result 10927 states and 29726 transitions. [2024-11-09 04:37:54,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 04:37:54,875 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:37:54,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:54,907 INFO L225 Difference]: With dead ends: 10927 [2024-11-09 04:37:54,907 INFO L226 Difference]: Without dead ends: 10914 [2024-11-09 04:37:54,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=327, Invalid=1565, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 04:37:54,912 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 485 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 2817 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 2824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:54,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 310 Invalid, 2824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2817 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 04:37:54,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10914 states. [2024-11-09 04:37:55,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10914 to 9462. [2024-11-09 04:37:55,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9462 states, 9453 states have (on average 2.789167460065588) internal successors, (26366), 9461 states have internal predecessors, (26366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:55,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9462 states to 9462 states and 26366 transitions. [2024-11-09 04:37:55,161 INFO L78 Accepts]: Start accepts. Automaton has 9462 states and 26366 transitions. Word has length 65 [2024-11-09 04:37:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:55,162 INFO L471 AbstractCegarLoop]: Abstraction has 9462 states and 26366 transitions. [2024-11-09 04:37:55,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:55,162 INFO L276 IsEmpty]: Start isEmpty. Operand 9462 states and 26366 transitions. [2024-11-09 04:37:55,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:37:55,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:55,165 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:55,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2024-11-09 04:37:55,166 INFO L396 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:37:55,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:55,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2022131177, now seen corresponding path program 37 times [2024-11-09 04:37:55,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:55,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568549462] [2024-11-09 04:37:55,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:55,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:57,105 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:37:57,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:57,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568549462] [2024-11-09 04:37:57,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568549462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:37:57,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913084703] [2024-11-09 04:37:57,106 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:37:57,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:37:57,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:37:57,107 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:37:57,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 04:37:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:57,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 04:37:57,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:37:57,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:37:57,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2024-11-09 04:37:57,856 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:37:57,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:37:57,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913084703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:57,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:37:57,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [28] total 37 [2024-11-09 04:37:57,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880510138] [2024-11-09 04:37:57,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:57,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:37:57,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:57,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:37:57,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1181, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 04:37:57,858 INFO L87 Difference]: Start difference. First operand 9462 states and 26366 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:59,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:59,400 INFO L93 Difference]: Finished difference Result 12316 states and 33282 transitions. [2024-11-09 04:37:59,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 04:37:59,401 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:37:59,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:59,437 INFO L225 Difference]: With dead ends: 12316 [2024-11-09 04:37:59,437 INFO L226 Difference]: Without dead ends: 12063 [2024-11-09 04:37:59,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=262, Invalid=2188, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 04:37:59,442 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 254 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:59,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 280 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 04:37:59,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12063 states. [2024-11-09 04:37:59,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12063 to 8858. [2024-11-09 04:37:59,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8858 states, 8849 states have (on average 2.7849474516894563) internal successors, (24644), 8857 states have internal predecessors, (24644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:59,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8858 states to 8858 states and 24644 transitions. [2024-11-09 04:37:59,641 INFO L78 Accepts]: Start accepts. Automaton has 8858 states and 24644 transitions. Word has length 65 [2024-11-09 04:37:59,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:59,641 INFO L471 AbstractCegarLoop]: Abstraction has 8858 states and 24644 transitions. [2024-11-09 04:37:59,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:37:59,642 INFO L276 IsEmpty]: Start isEmpty. Operand 8858 states and 24644 transitions. [2024-11-09 04:37:59,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:37:59,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:59,644 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:59,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 04:37:59,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:37:59,845 INFO L396 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:37:59,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:59,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2004917869, now seen corresponding path program 38 times [2024-11-09 04:37:59,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:59,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988145922] [2024-11-09 04:37:59,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:59,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:00,967 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:00,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:00,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988145922] [2024-11-09 04:38:00,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988145922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:00,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:00,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-09 04:38:00,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569429789] [2024-11-09 04:38:00,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:00,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 04:38:00,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:00,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 04:38:00,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:38:00,970 INFO L87 Difference]: Start difference. First operand 8858 states and 24644 transitions. Second operand has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:04,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:04,651 INFO L93 Difference]: Finished difference Result 11105 states and 30001 transitions. [2024-11-09 04:38:04,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 04:38:04,651 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:38:04,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:04,685 INFO L225 Difference]: With dead ends: 11105 [2024-11-09 04:38:04,685 INFO L226 Difference]: Without dead ends: 10695 [2024-11-09 04:38:04,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=503, Invalid=2359, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 04:38:04,690 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 435 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 3290 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 3304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:04,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 362 Invalid, 3304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3290 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 04:38:04,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10695 states. [2024-11-09 04:38:04,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10695 to 8996. [2024-11-09 04:38:04,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8987 states have (on average 2.7863580727717814) internal successors, (25041), 8995 states have internal predecessors, (25041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 25041 transitions. [2024-11-09 04:38:04,869 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 25041 transitions. Word has length 65 [2024-11-09 04:38:04,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:04,869 INFO L471 AbstractCegarLoop]: Abstraction has 8996 states and 25041 transitions. [2024-11-09 04:38:04,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:04,870 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 25041 transitions. [2024-11-09 04:38:04,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:38:04,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:04,873 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:04,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2024-11-09 04:38:04,873 INFO L396 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:38:04,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:04,873 INFO L85 PathProgramCache]: Analyzing trace with hash 192224877, now seen corresponding path program 39 times [2024-11-09 04:38:04,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:04,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591389616] [2024-11-09 04:38:04,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:04,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:06,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:06,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591389616] [2024-11-09 04:38:06,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591389616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:38:06,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732642219] [2024-11-09 04:38:06,607 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:38:06,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:38:06,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:38:06,608 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:38:06,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 04:38:06,994 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:38:06,994 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:38:06,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 04:38:06,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:38:07,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 04:38:07,285 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:07,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:38:07,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732642219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:07,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:38:07,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [30] total 36 [2024-11-09 04:38:07,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293573265] [2024-11-09 04:38:07,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:07,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:38:07,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:07,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:38:07,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1101, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:38:07,287 INFO L87 Difference]: Start difference. First operand 8996 states and 25041 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:08,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:08,484 INFO L93 Difference]: Finished difference Result 12056 states and 32790 transitions. [2024-11-09 04:38:08,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 04:38:08,484 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 04:38:08,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:08,530 INFO L225 Difference]: With dead ends: 12056 [2024-11-09 04:38:08,530 INFO L226 Difference]: Without dead ends: 11847 [2024-11-09 04:38:08,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=268, Invalid=1988, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 04:38:08,536 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 227 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:08,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 246 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:38:08,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11847 states. [2024-11-09 04:38:08,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11847 to 8184. [2024-11-09 04:38:08,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8184 states, 8175 states have (on average 2.7787155963302754) internal successors, (22716), 8183 states have internal predecessors, (22716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:08,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8184 states to 8184 states and 22716 transitions. [2024-11-09 04:38:08,762 INFO L78 Accepts]: Start accepts. Automaton has 8184 states and 22716 transitions. Word has length 65 [2024-11-09 04:38:08,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:08,763 INFO L471 AbstractCegarLoop]: Abstraction has 8184 states and 22716 transitions. [2024-11-09 04:38:08,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:08,763 INFO L276 IsEmpty]: Start isEmpty. Operand 8184 states and 22716 transitions. [2024-11-09 04:38:08,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:38:08,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:08,767 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:08,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 04:38:08,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:38:08,968 INFO L396 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:38:08,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:08,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1593197164, now seen corresponding path program 1 times [2024-11-09 04:38:08,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:08,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157265713] [2024-11-09 04:38:08,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:08,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:09,780 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:09,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:09,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157265713] [2024-11-09 04:38:09,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157265713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:38:09,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632156481] [2024-11-09 04:38:09,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:09,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:38:09,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:38:09,783 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:38:09,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 04:38:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:10,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:38:10,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:38:10,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:38:10,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2024-11-09 04:38:10,530 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:10,531 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:38:13,409 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:38:13,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:38:13,525 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:13,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632156481] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:38:13,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [902714258] [2024-11-09 04:38:13,527 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:38:13,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:38:13,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 28 [2024-11-09 04:38:13,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241594369] [2024-11-09 04:38:13,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:38:13,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 04:38:13,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:13,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 04:38:13,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=639, Unknown=1, NotChecked=0, Total=756 [2024-11-09 04:38:13,530 INFO L87 Difference]: Start difference. First operand 8184 states and 22716 transitions. Second operand has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:18,138 INFO L93 Difference]: Finished difference Result 12055 states and 32506 transitions. [2024-11-09 04:38:18,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-09 04:38:18,139 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:38:18,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:18,176 INFO L225 Difference]: With dead ends: 12055 [2024-11-09 04:38:18,176 INFO L226 Difference]: Without dead ends: 11647 [2024-11-09 04:38:18,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1018 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=770, Invalid=3389, Unknown=1, NotChecked=0, Total=4160 [2024-11-09 04:38:18,181 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 655 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 3973 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 3992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:18,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 352 Invalid, 3992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3973 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 04:38:18,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11647 states. [2024-11-09 04:38:18,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11647 to 8632. [2024-11-09 04:38:18,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8632 states, 8623 states have (on average 2.7753682013220455) internal successors, (23932), 8631 states have internal predecessors, (23932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:18,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8632 states to 8632 states and 23932 transitions. [2024-11-09 04:38:18,358 INFO L78 Accepts]: Start accepts. Automaton has 8632 states and 23932 transitions. Word has length 70 [2024-11-09 04:38:18,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:18,358 INFO L471 AbstractCegarLoop]: Abstraction has 8632 states and 23932 transitions. [2024-11-09 04:38:18,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:18,359 INFO L276 IsEmpty]: Start isEmpty. Operand 8632 states and 23932 transitions. [2024-11-09 04:38:18,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:38:18,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:18,362 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:18,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 04:38:18,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:38:18,563 INFO L396 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:38:18,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:18,563 INFO L85 PathProgramCache]: Analyzing trace with hash 192169122, now seen corresponding path program 2 times [2024-11-09 04:38:18,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:18,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291790827] [2024-11-09 04:38:18,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:18,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:19,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:19,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291790827] [2024-11-09 04:38:19,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291790827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:19,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:19,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:38:19,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710990279] [2024-11-09 04:38:19,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:19,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:38:19,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:19,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:38:19,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:38:19,399 INFO L87 Difference]: Start difference. First operand 8632 states and 23932 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:21,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:21,154 INFO L93 Difference]: Finished difference Result 10735 states and 28839 transitions. [2024-11-09 04:38:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 04:38:21,155 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:38:21,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:21,189 INFO L225 Difference]: With dead ends: 10735 [2024-11-09 04:38:21,189 INFO L226 Difference]: Without dead ends: 10318 [2024-11-09 04:38:21,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=963, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:38:21,194 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 361 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:21,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 126 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 04:38:21,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2024-11-09 04:38:21,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 8636. [2024-11-09 04:38:21,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8636 states, 8627 states have (on average 2.775704184536919) internal successors, (23946), 8635 states have internal predecessors, (23946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8636 states to 8636 states and 23946 transitions. [2024-11-09 04:38:21,466 INFO L78 Accepts]: Start accepts. Automaton has 8636 states and 23946 transitions. Word has length 70 [2024-11-09 04:38:21,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:21,467 INFO L471 AbstractCegarLoop]: Abstraction has 8636 states and 23946 transitions. [2024-11-09 04:38:21,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:21,467 INFO L276 IsEmpty]: Start isEmpty. Operand 8636 states and 23946 transitions. [2024-11-09 04:38:21,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:38:21,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:21,470 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:21,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2024-11-09 04:38:21,470 INFO L396 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:38:21,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:21,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1390288328, now seen corresponding path program 3 times [2024-11-09 04:38:21,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:21,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602896176] [2024-11-09 04:38:21,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:21,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:22,277 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:22,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:22,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602896176] [2024-11-09 04:38:22,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602896176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:38:22,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465877004] [2024-11-09 04:38:22,278 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:38:22,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:38:22,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:38:22,279 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:38:22,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 04:38:22,705 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:38:22,706 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:38:22,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:38:22,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:38:23,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:38:23,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:38:23,161 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:23,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:38:24,011 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:38:24,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:38:24,118 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:24,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465877004] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:38:24,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1300621753] [2024-11-09 04:38:24,119 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:38:24,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:38:24,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 29 [2024-11-09 04:38:24,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482766596] [2024-11-09 04:38:24,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:38:24,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 04:38:24,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:24,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 04:38:24,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2024-11-09 04:38:24,124 INFO L87 Difference]: Start difference. First operand 8636 states and 23946 transitions. Second operand has 29 states, 29 states have (on average 3.206896551724138) internal successors, (93), 29 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:30,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:30,547 INFO L93 Difference]: Finished difference Result 12008 states and 32401 transitions. [2024-11-09 04:38:30,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-09 04:38:30,548 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.206896551724138) internal successors, (93), 29 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:38:30,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:30,585 INFO L225 Difference]: With dead ends: 12008 [2024-11-09 04:38:30,585 INFO L226 Difference]: Without dead ends: 11600 [2024-11-09 04:38:30,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1796 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1132, Invalid=5674, Unknown=0, NotChecked=0, Total=6806 [2024-11-09 04:38:30,591 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 758 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 3968 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 4006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:30,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 291 Invalid, 4006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3968 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 04:38:30,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11600 states. [2024-11-09 04:38:30,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11600 to 8636. [2024-11-09 04:38:30,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8636 states, 8627 states have (on average 2.775704184536919) internal successors, (23946), 8635 states have internal predecessors, (23946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:30,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8636 states to 8636 states and 23946 transitions. [2024-11-09 04:38:30,774 INFO L78 Accepts]: Start accepts. Automaton has 8636 states and 23946 transitions. Word has length 70 [2024-11-09 04:38:30,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:30,775 INFO L471 AbstractCegarLoop]: Abstraction has 8636 states and 23946 transitions. [2024-11-09 04:38:30,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.206896551724138) internal successors, (93), 29 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:30,775 INFO L276 IsEmpty]: Start isEmpty. Operand 8636 states and 23946 transitions. [2024-11-09 04:38:30,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:38:30,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:30,778 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:30,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-09 04:38:30,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable176 [2024-11-09 04:38:30,979 INFO L396 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:38:30,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:30,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1619086848, now seen corresponding path program 4 times [2024-11-09 04:38:30,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:30,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277149768] [2024-11-09 04:38:30,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:30,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:31,726 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:31,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:31,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277149768] [2024-11-09 04:38:31,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277149768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:38:31,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204609017] [2024-11-09 04:38:31,727 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:38:31,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:38:31,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:38:31,728 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:38:31,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 04:38:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:32,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:38:32,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:38:32,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:38:32,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2024-11-09 04:38:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:32,518 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:38:35,022 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:38:35,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:38:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:35,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204609017] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:38:35,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1131776794] [2024-11-09 04:38:35,092 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:38:35,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:38:35,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:38:35,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504496690] [2024-11-09 04:38:35,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:38:35,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:38:35,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:35,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:38:35,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=737, Unknown=1, NotChecked=0, Total=870 [2024-11-09 04:38:35,095 INFO L87 Difference]: Start difference. First operand 8636 states and 23946 transitions. Second operand has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:41,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:41,020 INFO L93 Difference]: Finished difference Result 11272 states and 30467 transitions. [2024-11-09 04:38:41,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-09 04:38:41,021 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:38:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:41,056 INFO L225 Difference]: With dead ends: 11272 [2024-11-09 04:38:41,056 INFO L226 Difference]: Without dead ends: 10864 [2024-11-09 04:38:41,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1469 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=933, Invalid=4766, Unknown=1, NotChecked=0, Total=5700 [2024-11-09 04:38:41,061 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 736 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 3631 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 3650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:41,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 308 Invalid, 3650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3631 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 04:38:41,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10864 states. [2024-11-09 04:38:41,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10864 to 8636. [2024-11-09 04:38:41,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8636 states, 8627 states have (on average 2.775704184536919) internal successors, (23946), 8635 states have internal predecessors, (23946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:41,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8636 states to 8636 states and 23946 transitions. [2024-11-09 04:38:41,245 INFO L78 Accepts]: Start accepts. Automaton has 8636 states and 23946 transitions. Word has length 70 [2024-11-09 04:38:41,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:41,246 INFO L471 AbstractCegarLoop]: Abstraction has 8636 states and 23946 transitions. [2024-11-09 04:38:41,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:41,246 INFO L276 IsEmpty]: Start isEmpty. Operand 8636 states and 23946 transitions. [2024-11-09 04:38:41,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:38:41,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:41,250 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:41,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-09 04:38:41,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable177 [2024-11-09 04:38:41,450 INFO L396 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:38:41,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:41,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1734948954, now seen corresponding path program 5 times [2024-11-09 04:38:41,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:41,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947228850] [2024-11-09 04:38:41,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:41,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:42,156 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:42,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:42,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947228850] [2024-11-09 04:38:42,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947228850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:42,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:42,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:38:42,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386436554] [2024-11-09 04:38:42,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:42,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:38:42,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:42,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:38:42,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:38:42,157 INFO L87 Difference]: Start difference. First operand 8636 states and 23946 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:44,116 INFO L93 Difference]: Finished difference Result 10757 states and 28910 transitions. [2024-11-09 04:38:44,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 04:38:44,117 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:38:44,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:44,149 INFO L225 Difference]: With dead ends: 10757 [2024-11-09 04:38:44,149 INFO L226 Difference]: Without dead ends: 10340 [2024-11-09 04:38:44,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=291, Invalid=969, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:38:44,154 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 324 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:44,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 112 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:38:44,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10340 states. [2024-11-09 04:38:44,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10340 to 8642. [2024-11-09 04:38:44,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8642 states, 8633 states have (on average 2.7759759064056526) internal successors, (23965), 8641 states have internal predecessors, (23965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:44,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8642 states to 8642 states and 23965 transitions. [2024-11-09 04:38:44,328 INFO L78 Accepts]: Start accepts. Automaton has 8642 states and 23965 transitions. Word has length 70 [2024-11-09 04:38:44,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:44,328 INFO L471 AbstractCegarLoop]: Abstraction has 8642 states and 23965 transitions. [2024-11-09 04:38:44,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:44,328 INFO L276 IsEmpty]: Start isEmpty. Operand 8642 states and 23965 transitions. [2024-11-09 04:38:44,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:38:44,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:44,332 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:44,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2024-11-09 04:38:44,332 INFO L396 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:38:44,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:44,332 INFO L85 PathProgramCache]: Analyzing trace with hash -536829748, now seen corresponding path program 6 times [2024-11-09 04:38:44,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:44,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950347134] [2024-11-09 04:38:44,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:44,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:45,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:45,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950347134] [2024-11-09 04:38:45,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950347134] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:38:45,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706313404] [2024-11-09 04:38:45,003 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:38:45,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:38:45,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:38:45,004 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:38:45,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 04:38:45,396 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:38:45,396 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:38:45,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:38:45,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:38:45,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:38:45,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:38:45,852 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:45,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:38:46,176 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:38:46,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:38:46,273 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:46,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706313404] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:38:46,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [629095642] [2024-11-09 04:38:46,275 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:38:46,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:38:46,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:38:46,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990090813] [2024-11-09 04:38:46,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:38:46,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:38:46,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:46,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:38:46,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=751, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:38:46,278 INFO L87 Difference]: Start difference. First operand 8642 states and 23965 transitions. Second operand has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:51,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:51,797 INFO L93 Difference]: Finished difference Result 12211 states and 32898 transitions. [2024-11-09 04:38:51,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 04:38:51,798 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:38:51,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:51,836 INFO L225 Difference]: With dead ends: 12211 [2024-11-09 04:38:51,836 INFO L226 Difference]: Without dead ends: 11803 [2024-11-09 04:38:51,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1266 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=895, Invalid=4361, Unknown=0, NotChecked=0, Total=5256 [2024-11-09 04:38:51,842 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 549 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 3997 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 4029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:51,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 288 Invalid, 4029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3997 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 04:38:51,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11803 states. [2024-11-09 04:38:51,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11803 to 8640. [2024-11-09 04:38:51,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 8631 states have (on average 2.775808133472367) internal successors, (23958), 8639 states have internal predecessors, (23958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:52,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 23958 transitions. [2024-11-09 04:38:52,025 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 23958 transitions. Word has length 70 [2024-11-09 04:38:52,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:52,025 INFO L471 AbstractCegarLoop]: Abstraction has 8640 states and 23958 transitions. [2024-11-09 04:38:52,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:52,025 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 23958 transitions. [2024-11-09 04:38:52,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:38:52,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:52,029 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:52,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-09 04:38:52,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable179 [2024-11-09 04:38:52,229 INFO L396 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:38:52,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:52,230 INFO L85 PathProgramCache]: Analyzing trace with hash 748762372, now seen corresponding path program 7 times [2024-11-09 04:38:52,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:52,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080901143] [2024-11-09 04:38:52,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:52,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:52,955 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:52,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:52,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080901143] [2024-11-09 04:38:52,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080901143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:38:52,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098957578] [2024-11-09 04:38:52,956 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:38:52,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:38:52,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:38:52,959 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:38:52,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 04:38:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:53,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:38:53,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:38:53,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:38:53,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2024-11-09 04:38:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:53,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:38:54,044 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:38:54,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:38:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:54,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098957578] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:38:54,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1756585471] [2024-11-09 04:38:54,127 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:38:54,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:38:54,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:38:54,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302784085] [2024-11-09 04:38:54,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:38:54,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:38:54,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:54,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:38:54,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=739, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:38:54,129 INFO L87 Difference]: Start difference. First operand 8640 states and 23958 transitions. Second operand has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:58,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:58,612 INFO L93 Difference]: Finished difference Result 11181 states and 30321 transitions. [2024-11-09 04:38:58,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-09 04:38:58,613 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:38:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:58,652 INFO L225 Difference]: With dead ends: 11181 [2024-11-09 04:38:58,652 INFO L226 Difference]: Without dead ends: 10773 [2024-11-09 04:38:58,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=691, Invalid=3215, Unknown=0, NotChecked=0, Total=3906 [2024-11-09 04:38:58,658 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 511 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 3321 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 3334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:58,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 226 Invalid, 3334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3321 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 04:38:58,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10773 states. [2024-11-09 04:38:58,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10773 to 8638. [2024-11-09 04:38:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8638 states, 8629 states have (on average 2.7756402827674123) internal successors, (23951), 8637 states have internal predecessors, (23951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:58,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8638 states to 8638 states and 23951 transitions. [2024-11-09 04:38:58,863 INFO L78 Accepts]: Start accepts. Automaton has 8638 states and 23951 transitions. Word has length 70 [2024-11-09 04:38:58,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:58,864 INFO L471 AbstractCegarLoop]: Abstraction has 8638 states and 23951 transitions. [2024-11-09 04:38:58,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand 8638 states and 23951 transitions. [2024-11-09 04:38:58,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:38:58,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:58,868 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:58,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-09 04:38:59,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable180 [2024-11-09 04:38:59,069 INFO L396 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:38:59,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:59,069 INFO L85 PathProgramCache]: Analyzing trace with hash 2124370696, now seen corresponding path program 8 times [2024-11-09 04:38:59,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:59,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854317989] [2024-11-09 04:38:59,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:59,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:59,787 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:38:59,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:59,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854317989] [2024-11-09 04:38:59,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854317989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:59,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:59,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:38:59,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799289354] [2024-11-09 04:38:59,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:59,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:38:59,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:59,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:38:59,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:38:59,789 INFO L87 Difference]: Start difference. First operand 8638 states and 23951 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:02,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:02,096 INFO L93 Difference]: Finished difference Result 10783 states and 28951 transitions. [2024-11-09 04:39:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-09 04:39:02,097 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:02,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:02,130 INFO L225 Difference]: With dead ends: 10783 [2024-11-09 04:39:02,130 INFO L226 Difference]: Without dead ends: 10366 [2024-11-09 04:39:02,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=404, Invalid=1318, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:39:02,135 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 360 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:02,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 114 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:39:02,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10366 states. [2024-11-09 04:39:02,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10366 to 8642. [2024-11-09 04:39:02,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8642 states, 8633 states have (on average 2.7759759064056526) internal successors, (23965), 8641 states have internal predecessors, (23965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:02,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8642 states to 8642 states and 23965 transitions. [2024-11-09 04:39:02,313 INFO L78 Accepts]: Start accepts. Automaton has 8642 states and 23965 transitions. Word has length 70 [2024-11-09 04:39:02,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:02,313 INFO L471 AbstractCegarLoop]: Abstraction has 8642 states and 23965 transitions. [2024-11-09 04:39:02,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:02,314 INFO L276 IsEmpty]: Start isEmpty. Operand 8642 states and 23965 transitions. [2024-11-09 04:39:02,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:02,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:02,317 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:02,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2024-11-09 04:39:02,318 INFO L396 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:02,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:02,318 INFO L85 PathProgramCache]: Analyzing trace with hash -972477394, now seen corresponding path program 9 times [2024-11-09 04:39:02,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:02,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119176827] [2024-11-09 04:39:02,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:02,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:03,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:03,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119176827] [2024-11-09 04:39:03,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119176827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:03,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211715777] [2024-11-09 04:39:03,194 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:39:03,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:03,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:03,197 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:03,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 04:39:03,632 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:39:03,632 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:39:03,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:39:03,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:03,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:39:03,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:39:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:04,037 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:39:04,333 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:39:04,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:39:04,417 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:04,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211715777] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:39:04,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [30865185] [2024-11-09 04:39:04,419 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:39:04,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:39:04,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 29 [2024-11-09 04:39:04,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444793337] [2024-11-09 04:39:04,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:39:04,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 04:39:04,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:04,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 04:39:04,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=707, Unknown=0, NotChecked=0, Total=812 [2024-11-09 04:39:04,422 INFO L87 Difference]: Start difference. First operand 8642 states and 23965 transitions. Second operand has 29 states, 29 states have (on average 3.206896551724138) internal successors, (93), 29 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:08,568 INFO L93 Difference]: Finished difference Result 12405 states and 33479 transitions. [2024-11-09 04:39:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-09 04:39:08,568 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.206896551724138) internal successors, (93), 29 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:08,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:08,606 INFO L225 Difference]: With dead ends: 12405 [2024-11-09 04:39:08,606 INFO L226 Difference]: Without dead ends: 11997 [2024-11-09 04:39:08,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=724, Invalid=3308, Unknown=0, NotChecked=0, Total=4032 [2024-11-09 04:39:08,612 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 573 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:08,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 212 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 04:39:08,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11997 states. [2024-11-09 04:39:08,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11997 to 8640. [2024-11-09 04:39:08,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 8631 states have (on average 2.775808133472367) internal successors, (23958), 8639 states have internal predecessors, (23958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:08,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 23958 transitions. [2024-11-09 04:39:08,790 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 23958 transitions. Word has length 70 [2024-11-09 04:39:08,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:08,790 INFO L471 AbstractCegarLoop]: Abstraction has 8640 states and 23958 transitions. [2024-11-09 04:39:08,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.206896551724138) internal successors, (93), 29 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:08,791 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 23958 transitions. [2024-11-09 04:39:08,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:08,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:08,794 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:08,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-09 04:39:08,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable182 [2024-11-09 04:39:08,995 INFO L396 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:08,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:08,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1160176606, now seen corresponding path program 10 times [2024-11-09 04:39:08,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:08,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85869598] [2024-11-09 04:39:08,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:08,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:09,761 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:09,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:09,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85869598] [2024-11-09 04:39:09,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85869598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:09,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:09,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:39:09,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419773025] [2024-11-09 04:39:09,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:09,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:39:09,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:09,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:39:09,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:39:09,763 INFO L87 Difference]: Start difference. First operand 8640 states and 23958 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:11,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:11,612 INFO L93 Difference]: Finished difference Result 10996 states and 29470 transitions. [2024-11-09 04:39:11,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 04:39:11,613 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:11,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:11,649 INFO L225 Difference]: With dead ends: 10996 [2024-11-09 04:39:11,649 INFO L226 Difference]: Without dead ends: 10570 [2024-11-09 04:39:11,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=288, Invalid=972, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:39:11,655 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 332 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:11,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 127 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 04:39:11,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10570 states. [2024-11-09 04:39:11,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10570 to 8640. [2024-11-09 04:39:11,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 8631 states have (on average 2.775576410612907) internal successors, (23956), 8639 states have internal predecessors, (23956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:11,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 23956 transitions. [2024-11-09 04:39:11,846 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 23956 transitions. Word has length 70 [2024-11-09 04:39:11,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:11,846 INFO L471 AbstractCegarLoop]: Abstraction has 8640 states and 23956 transitions. [2024-11-09 04:39:11,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:11,846 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 23956 transitions. [2024-11-09 04:39:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:11,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:11,850 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:11,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2024-11-09 04:39:11,850 INFO L396 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:11,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:11,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1274391006, now seen corresponding path program 11 times [2024-11-09 04:39:11,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:11,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938963453] [2024-11-09 04:39:11,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:11,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:13,349 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:39:13,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:13,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938963453] [2024-11-09 04:39:13,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938963453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:13,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825417842] [2024-11-09 04:39:13,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:39:13,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:13,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:13,352 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:13,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 04:39:13,767 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:39:13,768 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:39:13,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:39:13,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:14,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:39:14,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 21 [2024-11-09 04:39:14,429 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:14,430 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:39:14,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825417842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:14,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:39:14,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [20] total 29 [2024-11-09 04:39:14,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802349530] [2024-11-09 04:39:14,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:14,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 04:39:14,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:14,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 04:39:14,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:39:14,435 INFO L87 Difference]: Start difference. First operand 8640 states and 23956 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:15,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:15,488 INFO L93 Difference]: Finished difference Result 10588 states and 28522 transitions. [2024-11-09 04:39:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 04:39:15,489 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:15,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:15,526 INFO L225 Difference]: With dead ends: 10588 [2024-11-09 04:39:15,526 INFO L226 Difference]: Without dead ends: 10171 [2024-11-09 04:39:15,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=209, Invalid=1197, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 04:39:15,531 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 240 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:15,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 124 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:39:15,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10171 states. [2024-11-09 04:39:15,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10171 to 8648. [2024-11-09 04:39:15,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8648 states, 8639 states have (on average 2.7760157425627967) internal successors, (23982), 8647 states have internal predecessors, (23982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:15,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8648 states to 8648 states and 23982 transitions. [2024-11-09 04:39:15,750 INFO L78 Accepts]: Start accepts. Automaton has 8648 states and 23982 transitions. Word has length 70 [2024-11-09 04:39:15,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:15,750 INFO L471 AbstractCegarLoop]: Abstraction has 8648 states and 23982 transitions. [2024-11-09 04:39:15,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:15,751 INFO L276 IsEmpty]: Start isEmpty. Operand 8648 states and 23982 transitions. [2024-11-09 04:39:15,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:15,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:15,754 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:15,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-09 04:39:15,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:15,955 INFO L396 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:15,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:15,956 INFO L85 PathProgramCache]: Analyzing trace with hash -76271800, now seen corresponding path program 12 times [2024-11-09 04:39:15,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:15,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828922579] [2024-11-09 04:39:15,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:15,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 14 proven. 28 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:39:17,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:17,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828922579] [2024-11-09 04:39:17,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828922579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:17,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279234027] [2024-11-09 04:39:17,138 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:39:17,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:17,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:17,139 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:17,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 04:39:17,545 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:39:17,545 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:39:17,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:39:17,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:17,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:39:17,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2024-11-09 04:39:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:17,876 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:39:18,127 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:39:18,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:39:18,199 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:18,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279234027] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:39:18,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1378840418] [2024-11-09 04:39:18,200 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:39:18,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:39:18,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 10] total 35 [2024-11-09 04:39:18,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841517951] [2024-11-09 04:39:18,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:39:18,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 04:39:18,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:18,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 04:39:18,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1043, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 04:39:18,202 INFO L87 Difference]: Start difference. First operand 8648 states and 23982 transitions. Second operand has 35 states, 35 states have (on average 3.0) internal successors, (105), 35 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:22,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:22,588 INFO L93 Difference]: Finished difference Result 12523 states and 33776 transitions. [2024-11-09 04:39:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-09 04:39:22,589 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.0) internal successors, (105), 35 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:22,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:22,632 INFO L225 Difference]: With dead ends: 12523 [2024-11-09 04:39:22,632 INFO L226 Difference]: Without dead ends: 12115 [2024-11-09 04:39:22,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1324 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=787, Invalid=4043, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 04:39:22,639 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 536 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 3801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:22,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 158 Invalid, 3801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 04:39:22,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12115 states. [2024-11-09 04:39:22,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12115 to 8646. [2024-11-09 04:39:22,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8646 states, 8637 states have (on average 2.7758480954034965) internal successors, (23975), 8645 states have internal predecessors, (23975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8646 states to 8646 states and 23975 transitions. [2024-11-09 04:39:22,855 INFO L78 Accepts]: Start accepts. Automaton has 8646 states and 23975 transitions. Word has length 70 [2024-11-09 04:39:22,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:22,856 INFO L471 AbstractCegarLoop]: Abstraction has 8646 states and 23975 transitions. [2024-11-09 04:39:22,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.0) internal successors, (105), 35 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:22,856 INFO L276 IsEmpty]: Start isEmpty. Operand 8646 states and 23975 transitions. [2024-11-09 04:39:22,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:22,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:22,860 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:22,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-09 04:39:23,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:23,061 INFO L396 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:23,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:23,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2056382200, now seen corresponding path program 13 times [2024-11-09 04:39:23,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:23,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496225545] [2024-11-09 04:39:23,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:23,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:23,811 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:23,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:23,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496225545] [2024-11-09 04:39:23,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496225545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:23,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:23,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:39:23,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251470024] [2024-11-09 04:39:23,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:23,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:39:23,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:23,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:39:23,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:39:23,813 INFO L87 Difference]: Start difference. First operand 8646 states and 23975 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:25,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:25,884 INFO L93 Difference]: Finished difference Result 11018 states and 29529 transitions. [2024-11-09 04:39:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 04:39:25,884 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:25,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:25,922 INFO L225 Difference]: With dead ends: 11018 [2024-11-09 04:39:25,922 INFO L226 Difference]: Without dead ends: 10592 [2024-11-09 04:39:25,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=286, Invalid=974, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:39:25,927 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 291 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:25,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 151 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1869 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:39:25,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2024-11-09 04:39:26,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 8644. [2024-11-09 04:39:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8644 states, 8635 states have (on average 2.775680370584829) internal successors, (23968), 8643 states have internal predecessors, (23968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:26,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8644 states to 8644 states and 23968 transitions. [2024-11-09 04:39:26,149 INFO L78 Accepts]: Start accepts. Automaton has 8644 states and 23968 transitions. Word has length 70 [2024-11-09 04:39:26,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:26,149 INFO L471 AbstractCegarLoop]: Abstraction has 8644 states and 23968 transitions. [2024-11-09 04:39:26,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:26,149 INFO L276 IsEmpty]: Start isEmpty. Operand 8644 states and 23968 transitions. [2024-11-09 04:39:26,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:26,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:26,153 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:26,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2024-11-09 04:39:26,154 INFO L396 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:26,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:26,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1773335036, now seen corresponding path program 14 times [2024-11-09 04:39:26,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:26,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878792681] [2024-11-09 04:39:26,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:26,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:39:27,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:27,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878792681] [2024-11-09 04:39:27,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878792681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:27,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488029941] [2024-11-09 04:39:27,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:39:27,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:27,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:27,383 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:27,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 04:39:27,810 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:39:27,810 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:39:27,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:39:27,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:28,298 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 04:39:28,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 16 [2024-11-09 04:39:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:28,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:39:28,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488029941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:28,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:39:28,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [20] total 29 [2024-11-09 04:39:28,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371560786] [2024-11-09 04:39:28,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:28,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 04:39:28,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:28,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 04:39:28,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=750, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:39:28,356 INFO L87 Difference]: Start difference. First operand 8644 states and 23968 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:29,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:29,407 INFO L93 Difference]: Finished difference Result 10219 states and 27646 transitions. [2024-11-09 04:39:29,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:39:29,408 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:29,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:29,445 INFO L225 Difference]: With dead ends: 10219 [2024-11-09 04:39:29,446 INFO L226 Difference]: Without dead ends: 9784 [2024-11-09 04:39:29,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=214, Invalid=1118, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 04:39:29,451 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 151 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:29,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 97 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:39:29,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9784 states. [2024-11-09 04:39:29,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9784 to 8644. [2024-11-09 04:39:29,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8644 states, 8635 states have (on average 2.7754487550665896) internal successors, (23966), 8643 states have internal predecessors, (23966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8644 states to 8644 states and 23966 transitions. [2024-11-09 04:39:29,659 INFO L78 Accepts]: Start accepts. Automaton has 8644 states and 23966 transitions. Word has length 70 [2024-11-09 04:39:29,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:29,659 INFO L471 AbstractCegarLoop]: Abstraction has 8644 states and 23966 transitions. [2024-11-09 04:39:29,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:29,660 INFO L276 IsEmpty]: Start isEmpty. Operand 8644 states and 23966 transitions. [2024-11-09 04:39:29,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:29,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:29,664 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:29,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 04:39:29,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:29,864 INFO L396 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:29,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:29,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1088374716, now seen corresponding path program 15 times [2024-11-09 04:39:29,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:29,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742802057] [2024-11-09 04:39:29,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:29,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:30,656 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:30,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:30,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742802057] [2024-11-09 04:39:30,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742802057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:30,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:30,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:39:30,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907740387] [2024-11-09 04:39:30,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:30,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:39:30,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:30,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:39:30,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:39:30,658 INFO L87 Difference]: Start difference. First operand 8644 states and 23966 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:32,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:32,625 INFO L93 Difference]: Finished difference Result 10797 states and 29012 transitions. [2024-11-09 04:39:32,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 04:39:32,626 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:32,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:32,664 INFO L225 Difference]: With dead ends: 10797 [2024-11-09 04:39:32,664 INFO L226 Difference]: Without dead ends: 10380 [2024-11-09 04:39:32,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=273, Invalid=917, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 04:39:32,670 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 289 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:32,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 103 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:39:32,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10380 states. [2024-11-09 04:39:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10380 to 8650. [2024-11-09 04:39:32,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8650 states, 8641 states have (on average 2.7757204027311655) internal successors, (23985), 8649 states have internal predecessors, (23985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:32,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8650 states to 8650 states and 23985 transitions. [2024-11-09 04:39:32,877 INFO L78 Accepts]: Start accepts. Automaton has 8650 states and 23985 transitions. Word has length 70 [2024-11-09 04:39:32,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:32,877 INFO L471 AbstractCegarLoop]: Abstraction has 8650 states and 23985 transitions. [2024-11-09 04:39:32,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:32,878 INFO L276 IsEmpty]: Start isEmpty. Operand 8650 states and 23985 transitions. [2024-11-09 04:39:32,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:32,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:32,881 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:32,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2024-11-09 04:39:32,881 INFO L396 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:32,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:32,882 INFO L85 PathProgramCache]: Analyzing trace with hash -2008473374, now seen corresponding path program 16 times [2024-11-09 04:39:32,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:32,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063734327] [2024-11-09 04:39:32,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:32,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:33,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:33,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063734327] [2024-11-09 04:39:33,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063734327] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:33,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788457357] [2024-11-09 04:39:33,673 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:39:33,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:33,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:33,674 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:33,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 04:39:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:34,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:39:34,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:34,532 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:39:34,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:39:34,632 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:34,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:39:34,923 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:39:34,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:39:34,995 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:34,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788457357] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:39:34,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1154565435] [2024-11-09 04:39:34,996 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:39:34,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:39:34,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:39:34,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510763436] [2024-11-09 04:39:34,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:39:34,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:39:34,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:34,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:39:34,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=746, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:39:34,998 INFO L87 Difference]: Start difference. First operand 8650 states and 23985 transitions. Second operand has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:40,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:40,022 INFO L93 Difference]: Finished difference Result 12199 states and 32884 transitions. [2024-11-09 04:39:40,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 04:39:40,022 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:40,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:40,063 INFO L225 Difference]: With dead ends: 12199 [2024-11-09 04:39:40,063 INFO L226 Difference]: Without dead ends: 11791 [2024-11-09 04:39:40,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1170 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=779, Invalid=3913, Unknown=0, NotChecked=0, Total=4692 [2024-11-09 04:39:40,068 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 622 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 3542 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 3573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 3542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:40,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 208 Invalid, 3573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 3542 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 04:39:40,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11791 states. [2024-11-09 04:39:40,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11791 to 8648. [2024-11-09 04:39:40,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8648 states, 8639 states have (on average 2.775552726009955) internal successors, (23978), 8647 states have internal predecessors, (23978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:40,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8648 states to 8648 states and 23978 transitions. [2024-11-09 04:39:40,263 INFO L78 Accepts]: Start accepts. Automaton has 8648 states and 23978 transitions. Word has length 70 [2024-11-09 04:39:40,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:40,263 INFO L471 AbstractCegarLoop]: Abstraction has 8648 states and 23978 transitions. [2024-11-09 04:39:40,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 8648 states and 23978 transitions. [2024-11-09 04:39:40,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:40,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:40,267 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:40,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-09 04:39:40,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable189 [2024-11-09 04:39:40,468 INFO L396 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:40,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:40,468 INFO L85 PathProgramCache]: Analyzing trace with hash -722881254, now seen corresponding path program 17 times [2024-11-09 04:39:40,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:40,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044326456] [2024-11-09 04:39:40,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:40,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:41,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:41,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044326456] [2024-11-09 04:39:41,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044326456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:41,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637183806] [2024-11-09 04:39:41,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:39:41,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:41,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:41,183 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:41,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 04:39:41,605 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:39:41,605 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:39:41,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:39:41,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:42,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 04:39:42,188 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:42,189 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:39:42,476 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:39:42,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:39:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:42,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637183806] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:39:42,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1806523590] [2024-11-09 04:39:42,579 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:39:42,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:39:42,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 31 [2024-11-09 04:39:42,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214900491] [2024-11-09 04:39:42,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:39:42,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-09 04:39:42,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:42,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-09 04:39:42,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2024-11-09 04:39:42,581 INFO L87 Difference]: Start difference. First operand 8648 states and 23978 transitions. Second operand has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:45,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:45,697 INFO L93 Difference]: Finished difference Result 11075 states and 30070 transitions. [2024-11-09 04:39:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 04:39:45,698 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:45,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:45,735 INFO L225 Difference]: With dead ends: 11075 [2024-11-09 04:39:45,736 INFO L226 Difference]: Without dead ends: 10667 [2024-11-09 04:39:45,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=569, Invalid=2511, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 04:39:45,740 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 563 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 2345 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:45,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 148 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2345 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 04:39:45,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10667 states. [2024-11-09 04:39:45,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10667 to 8646. [2024-11-09 04:39:45,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8646 states, 8637 states have (on average 2.775384971633669) internal successors, (23971), 8645 states have internal predecessors, (23971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:45,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8646 states to 8646 states and 23971 transitions. [2024-11-09 04:39:45,921 INFO L78 Accepts]: Start accepts. Automaton has 8646 states and 23971 transitions. Word has length 70 [2024-11-09 04:39:45,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:45,921 INFO L471 AbstractCegarLoop]: Abstraction has 8646 states and 23971 transitions. [2024-11-09 04:39:45,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand 8646 states and 23971 transitions. [2024-11-09 04:39:45,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:45,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:45,925 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:45,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-09 04:39:46,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable190 [2024-11-09 04:39:46,126 INFO L396 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:46,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:46,126 INFO L85 PathProgramCache]: Analyzing trace with hash 652727070, now seen corresponding path program 18 times [2024-11-09 04:39:46,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:46,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798640332] [2024-11-09 04:39:46,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:46,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:46,848 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:46,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:46,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798640332] [2024-11-09 04:39:46,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798640332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:46,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:46,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:39:46,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693685077] [2024-11-09 04:39:46,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:46,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:39:46,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:46,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:39:46,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:39:46,850 INFO L87 Difference]: Start difference. First operand 8646 states and 23971 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:49,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:49,173 INFO L93 Difference]: Finished difference Result 10819 states and 29041 transitions. [2024-11-09 04:39:49,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 04:39:49,174 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:49,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:49,209 INFO L225 Difference]: With dead ends: 10819 [2024-11-09 04:39:49,209 INFO L226 Difference]: Without dead ends: 10402 [2024-11-09 04:39:49,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=386, Invalid=1254, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 04:39:49,214 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 311 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:49,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 136 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 04:39:49,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10402 states. [2024-11-09 04:39:49,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10402 to 8650. [2024-11-09 04:39:49,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8650 states, 8641 states have (on average 2.7757204027311655) internal successors, (23985), 8649 states have internal predecessors, (23985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:49,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8650 states to 8650 states and 23985 transitions. [2024-11-09 04:39:49,417 INFO L78 Accepts]: Start accepts. Automaton has 8650 states and 23985 transitions. Word has length 70 [2024-11-09 04:39:49,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:49,417 INFO L471 AbstractCegarLoop]: Abstraction has 8650 states and 23985 transitions. [2024-11-09 04:39:49,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:49,418 INFO L276 IsEmpty]: Start isEmpty. Operand 8650 states and 23985 transitions. [2024-11-09 04:39:49,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:49,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:49,422 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:49,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2024-11-09 04:39:49,422 INFO L396 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:49,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:49,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1850846276, now seen corresponding path program 19 times [2024-11-09 04:39:49,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:49,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444954573] [2024-11-09 04:39:49,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:49,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 14 proven. 28 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:39:50,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:50,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444954573] [2024-11-09 04:39:50,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444954573] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:50,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453531333] [2024-11-09 04:39:50,486 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:39:50,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:50,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:50,487 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:50,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 04:39:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:50,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:39:50,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:51,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:39:51,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:39:51,334 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:51,335 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:39:51,643 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:39:51,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:39:51,725 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:51,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453531333] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:39:51,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2021219852] [2024-11-09 04:39:51,726 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:39:51,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:39:51,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 10] total 35 [2024-11-09 04:39:51,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038542922] [2024-11-09 04:39:51,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:39:51,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 04:39:51,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:51,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 04:39:51,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1042, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 04:39:51,729 INFO L87 Difference]: Start difference. First operand 8650 states and 23985 transitions. Second operand has 35 states, 35 states have (on average 3.0) internal successors, (105), 35 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:55,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:55,684 INFO L93 Difference]: Finished difference Result 12525 states and 33777 transitions. [2024-11-09 04:39:55,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-09 04:39:55,685 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.0) internal successors, (105), 35 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:55,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:55,723 INFO L225 Difference]: With dead ends: 12525 [2024-11-09 04:39:55,723 INFO L226 Difference]: Without dead ends: 12117 [2024-11-09 04:39:55,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1390 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=794, Invalid=4176, Unknown=0, NotChecked=0, Total=4970 [2024-11-09 04:39:55,729 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 613 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 3164 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 3199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:55,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 127 Invalid, 3199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3164 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 04:39:55,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12117 states. [2024-11-09 04:39:55,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12117 to 8648. [2024-11-09 04:39:55,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8648 states, 8639 states have (on average 2.775552726009955) internal successors, (23978), 8647 states have internal predecessors, (23978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:55,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8648 states to 8648 states and 23978 transitions. [2024-11-09 04:39:55,921 INFO L78 Accepts]: Start accepts. Automaton has 8648 states and 23978 transitions. Word has length 70 [2024-11-09 04:39:55,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:55,922 INFO L471 AbstractCegarLoop]: Abstraction has 8648 states and 23978 transitions. [2024-11-09 04:39:55,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.0) internal successors, (105), 35 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:55,922 INFO L276 IsEmpty]: Start isEmpty. Operand 8648 states and 23978 transitions. [2024-11-09 04:39:55,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:55,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:55,926 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:55,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-09 04:39:56,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable192 [2024-11-09 04:39:56,126 INFO L396 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:56,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:56,127 INFO L85 PathProgramCache]: Analyzing trace with hash -311467020, now seen corresponding path program 20 times [2024-11-09 04:39:56,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:56,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13755538] [2024-11-09 04:39:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:56,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:56,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:56,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13755538] [2024-11-09 04:39:56,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13755538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:56,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:56,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:39:56,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600302996] [2024-11-09 04:39:56,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:56,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:39:56,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:56,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:39:56,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:39:56,832 INFO L87 Difference]: Start difference. First operand 8648 states and 23978 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:58,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:58,653 INFO L93 Difference]: Finished difference Result 11024 states and 29540 transitions. [2024-11-09 04:39:58,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 04:39:58,654 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:39:58,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:58,695 INFO L225 Difference]: With dead ends: 11024 [2024-11-09 04:39:58,696 INFO L226 Difference]: Without dead ends: 10598 [2024-11-09 04:39:58,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 04:39:58,700 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 307 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:58,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 118 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 04:39:58,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10598 states. [2024-11-09 04:39:58,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10598 to 8644. [2024-11-09 04:39:58,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8644 states, 8635 states have (on average 2.7754487550665896) internal successors, (23966), 8643 states have internal predecessors, (23966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:58,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8644 states to 8644 states and 23966 transitions. [2024-11-09 04:39:58,874 INFO L78 Accepts]: Start accepts. Automaton has 8644 states and 23966 transitions. Word has length 70 [2024-11-09 04:39:58,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:58,874 INFO L471 AbstractCegarLoop]: Abstraction has 8644 states and 23966 transitions. [2024-11-09 04:39:58,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:58,874 INFO L276 IsEmpty]: Start isEmpty. Operand 8644 states and 23966 transitions. [2024-11-09 04:39:58,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:39:58,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:58,878 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:58,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2024-11-09 04:39:58,878 INFO L396 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:39:58,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:58,878 INFO L85 PathProgramCache]: Analyzing trace with hash 479167636, now seen corresponding path program 21 times [2024-11-09 04:39:58,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:58,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239449775] [2024-11-09 04:39:58,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:58,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:59,496 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:39:59,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:59,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239449775] [2024-11-09 04:39:59,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239449775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:59,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:59,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:39:59,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118680421] [2024-11-09 04:39:59,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:59,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:39:59,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:59,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:39:59,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:39:59,498 INFO L87 Difference]: Start difference. First operand 8644 states and 23966 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:01,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:01,547 INFO L93 Difference]: Finished difference Result 11050 states and 29622 transitions. [2024-11-09 04:40:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-09 04:40:01,547 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:01,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:01,576 INFO L225 Difference]: With dead ends: 11050 [2024-11-09 04:40:01,576 INFO L226 Difference]: Without dead ends: 10561 [2024-11-09 04:40:01,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=416, Invalid=1476, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 04:40:01,580 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 350 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:01,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 131 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 04:40:01,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10561 states. [2024-11-09 04:40:01,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10561 to 8672. [2024-11-09 04:40:01,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8672 states, 8663 states have (on average 2.7754819346646658) internal successors, (24044), 8671 states have internal predecessors, (24044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:01,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8672 states to 8672 states and 24044 transitions. [2024-11-09 04:40:01,744 INFO L78 Accepts]: Start accepts. Automaton has 8672 states and 24044 transitions. Word has length 70 [2024-11-09 04:40:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:01,744 INFO L471 AbstractCegarLoop]: Abstraction has 8672 states and 24044 transitions. [2024-11-09 04:40:01,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 8672 states and 24044 transitions. [2024-11-09 04:40:01,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:01,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:01,748 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:01,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2024-11-09 04:40:01,748 INFO L396 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:01,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:01,748 INFO L85 PathProgramCache]: Analyzing trace with hash -447279160, now seen corresponding path program 22 times [2024-11-09 04:40:01,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:01,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073036994] [2024-11-09 04:40:01,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:01,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:02,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:02,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073036994] [2024-11-09 04:40:02,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073036994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:02,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:02,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:40:02,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236205322] [2024-11-09 04:40:02,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:02,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:40:02,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:02,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:40:02,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:40:02,321 INFO L87 Difference]: Start difference. First operand 8672 states and 24044 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:05,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:05,049 INFO L93 Difference]: Finished difference Result 11001 states and 29506 transitions. [2024-11-09 04:40:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-09 04:40:05,050 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:05,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:05,088 INFO L225 Difference]: With dead ends: 11001 [2024-11-09 04:40:05,088 INFO L226 Difference]: Without dead ends: 10584 [2024-11-09 04:40:05,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=560, Invalid=1990, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 04:40:05,093 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 378 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:05,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 105 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 04:40:05,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10584 states. [2024-11-09 04:40:05,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10584 to 8678. [2024-11-09 04:40:05,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8678 states, 8669 states have (on average 2.7759833890875534) internal successors, (24065), 8677 states have internal predecessors, (24065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8678 states to 8678 states and 24065 transitions. [2024-11-09 04:40:05,272 INFO L78 Accepts]: Start accepts. Automaton has 8678 states and 24065 transitions. Word has length 70 [2024-11-09 04:40:05,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:05,273 INFO L471 AbstractCegarLoop]: Abstraction has 8678 states and 24065 transitions. [2024-11-09 04:40:05,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:05,273 INFO L276 IsEmpty]: Start isEmpty. Operand 8678 states and 24065 transitions. [2024-11-09 04:40:05,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:05,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:05,276 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:05,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2024-11-09 04:40:05,277 INFO L396 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:05,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:05,277 INFO L85 PathProgramCache]: Analyzing trace with hash 750840046, now seen corresponding path program 23 times [2024-11-09 04:40:05,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:05,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414432615] [2024-11-09 04:40:05,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:05,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:05,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:05,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414432615] [2024-11-09 04:40:05,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414432615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:40:05,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684770419] [2024-11-09 04:40:05,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:40:05,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:05,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:40:05,920 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:40:05,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 04:40:06,355 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:40:06,355 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:40:06,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 04:40:06,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:06,804 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:06,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 21 [2024-11-09 04:40:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:06,964 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:40:07,268 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:40:07,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:40:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:07,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684770419] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:40:07,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2046457940] [2024-11-09 04:40:07,377 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:40:07,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:40:07,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 33 [2024-11-09 04:40:07,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911161340] [2024-11-09 04:40:07,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:40:07,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 04:40:07,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:07,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 04:40:07,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=922, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 04:40:07,378 INFO L87 Difference]: Start difference. First operand 8678 states and 24065 transitions. Second operand has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:11,946 INFO L93 Difference]: Finished difference Result 13167 states and 35311 transitions. [2024-11-09 04:40:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-09 04:40:11,947 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:11,987 INFO L225 Difference]: With dead ends: 13167 [2024-11-09 04:40:11,987 INFO L226 Difference]: Without dead ends: 12759 [2024-11-09 04:40:11,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1348, Invalid=5132, Unknown=0, NotChecked=0, Total=6480 [2024-11-09 04:40:11,992 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 837 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 3644 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 3687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 3644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:11,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 214 Invalid, 3687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 3644 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 04:40:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12759 states. [2024-11-09 04:40:12,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12759 to 8676. [2024-11-09 04:40:12,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8676 states, 8667 states have (on average 2.7758163147571246) internal successors, (24058), 8675 states have internal predecessors, (24058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8676 states to 8676 states and 24058 transitions. [2024-11-09 04:40:12,187 INFO L78 Accepts]: Start accepts. Automaton has 8676 states and 24058 transitions. Word has length 70 [2024-11-09 04:40:12,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:12,187 INFO L471 AbstractCegarLoop]: Abstraction has 8676 states and 24058 transitions. [2024-11-09 04:40:12,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:12,187 INFO L276 IsEmpty]: Start isEmpty. Operand 8676 states and 24058 transitions. [2024-11-09 04:40:12,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:12,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:12,191 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:12,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-09 04:40:12,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:12,391 INFO L396 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:12,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:12,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1411473250, now seen corresponding path program 24 times [2024-11-09 04:40:12,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:12,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206663402] [2024-11-09 04:40:12,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:12,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:13,146 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:13,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:13,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206663402] [2024-11-09 04:40:13,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206663402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:13,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:13,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:40:13,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395805038] [2024-11-09 04:40:13,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:13,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:40:13,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:13,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:40:13,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:40:13,147 INFO L87 Difference]: Start difference. First operand 8676 states and 24058 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:15,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:15,229 INFO L93 Difference]: Finished difference Result 11204 states and 29994 transitions. [2024-11-09 04:40:15,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-09 04:40:15,230 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:15,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:15,268 INFO L225 Difference]: With dead ends: 11204 [2024-11-09 04:40:15,268 INFO L226 Difference]: Without dead ends: 10778 [2024-11-09 04:40:15,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 04:40:15,273 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 380 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:15,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 93 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1614 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 04:40:15,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10778 states. [2024-11-09 04:40:15,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10778 to 8674. [2024-11-09 04:40:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8674 states, 8665 states have (on average 2.775649163300635) internal successors, (24051), 8673 states have internal predecessors, (24051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:15,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8674 states to 8674 states and 24051 transitions. [2024-11-09 04:40:15,450 INFO L78 Accepts]: Start accepts. Automaton has 8674 states and 24051 transitions. Word has length 70 [2024-11-09 04:40:15,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:15,450 INFO L471 AbstractCegarLoop]: Abstraction has 8674 states and 24051 transitions. [2024-11-09 04:40:15,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:15,451 INFO L276 IsEmpty]: Start isEmpty. Operand 8674 states and 24051 transitions. [2024-11-09 04:40:15,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:15,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:15,454 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:15,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2024-11-09 04:40:15,454 INFO L396 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:15,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:15,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1694520414, now seen corresponding path program 25 times [2024-11-09 04:40:15,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:15,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284552755] [2024-11-09 04:40:15,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:15,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:16,145 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:16,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:16,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284552755] [2024-11-09 04:40:16,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284552755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:16,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:16,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:40:16,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266875778] [2024-11-09 04:40:16,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:16,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:40:16,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:16,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:40:16,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:40:16,147 INFO L87 Difference]: Start difference. First operand 8674 states and 24051 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:18,102 INFO L93 Difference]: Finished difference Result 10991 states and 29485 transitions. [2024-11-09 04:40:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 04:40:18,103 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:18,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:18,138 INFO L225 Difference]: With dead ends: 10991 [2024-11-09 04:40:18,138 INFO L226 Difference]: Without dead ends: 10556 [2024-11-09 04:40:18,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 04:40:18,142 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 310 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:18,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 119 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:40:18,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10556 states. [2024-11-09 04:40:18,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10556 to 8672. [2024-11-09 04:40:18,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8672 states, 8663 states have (on average 2.7754819346646658) internal successors, (24044), 8671 states have internal predecessors, (24044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:18,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8672 states to 8672 states and 24044 transitions. [2024-11-09 04:40:18,315 INFO L78 Accepts]: Start accepts. Automaton has 8672 states and 24044 transitions. Word has length 70 [2024-11-09 04:40:18,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:18,316 INFO L471 AbstractCegarLoop]: Abstraction has 8672 states and 24044 transitions. [2024-11-09 04:40:18,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:18,316 INFO L276 IsEmpty]: Start isEmpty. Operand 8672 states and 24044 transitions. [2024-11-09 04:40:18,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:18,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:18,319 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:18,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2024-11-09 04:40:18,320 INFO L396 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:18,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:18,320 INFO L85 PathProgramCache]: Analyzing trace with hash -262244480, now seen corresponding path program 26 times [2024-11-09 04:40:18,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:18,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059725554] [2024-11-09 04:40:18,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:18,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:19,010 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:19,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:19,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059725554] [2024-11-09 04:40:19,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059725554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:19,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:19,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:40:19,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567494864] [2024-11-09 04:40:19,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:19,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:40:19,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:19,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:40:19,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:40:19,012 INFO L87 Difference]: Start difference. First operand 8672 states and 24044 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:21,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:21,374 INFO L93 Difference]: Finished difference Result 11019 states and 29549 transitions. [2024-11-09 04:40:21,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-09 04:40:21,375 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:21,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:21,413 INFO L225 Difference]: With dead ends: 11019 [2024-11-09 04:40:21,413 INFO L226 Difference]: Without dead ends: 10602 [2024-11-09 04:40:21,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=532, Invalid=1820, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 04:40:21,418 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 387 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:21,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 89 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:40:21,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10602 states. [2024-11-09 04:40:21,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 8680. [2024-11-09 04:40:21,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8680 states, 8671 states have (on average 2.7759197324414715) internal successors, (24070), 8679 states have internal predecessors, (24070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:21,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8680 states to 8680 states and 24070 transitions. [2024-11-09 04:40:21,597 INFO L78 Accepts]: Start accepts. Automaton has 8680 states and 24070 transitions. Word has length 70 [2024-11-09 04:40:21,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:21,597 INFO L471 AbstractCegarLoop]: Abstraction has 8680 states and 24070 transitions. [2024-11-09 04:40:21,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:21,598 INFO L276 IsEmpty]: Start isEmpty. Operand 8680 states and 24070 transitions. [2024-11-09 04:40:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:21,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:21,601 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:21,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2024-11-09 04:40:21,602 INFO L396 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:21,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:21,602 INFO L85 PathProgramCache]: Analyzing trace with hash 935874726, now seen corresponding path program 27 times [2024-11-09 04:40:21,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:21,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228532027] [2024-11-09 04:40:21,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:21,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:22,344 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:22,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:22,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228532027] [2024-11-09 04:40:22,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228532027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:40:22,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883243530] [2024-11-09 04:40:22,345 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:40:22,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:22,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:40:22,347 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:40:22,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-09 04:40:22,768 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:40:22,768 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:40:22,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:40:22,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:22,979 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:22,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2024-11-09 04:40:23,108 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:23,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:40:23,413 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:40:23,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:40:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:23,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883243530] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:40:23,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [719943883] [2024-11-09 04:40:23,494 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:40:23,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:40:23,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:40:23,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771892001] [2024-11-09 04:40:23,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:40:23,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:40:23,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:23,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:40:23,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=753, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:40:23,497 INFO L87 Difference]: Start difference. First operand 8680 states and 24070 transitions. Second operand has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:28,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:28,066 INFO L93 Difference]: Finished difference Result 12729 states and 34291 transitions. [2024-11-09 04:40:28,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-09 04:40:28,067 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:28,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:28,107 INFO L225 Difference]: With dead ends: 12729 [2024-11-09 04:40:28,107 INFO L226 Difference]: Without dead ends: 12321 [2024-11-09 04:40:28,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1247 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1142, Invalid=4260, Unknown=0, NotChecked=0, Total=5402 [2024-11-09 04:40:28,113 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 543 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 3365 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 3398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 3365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:28,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 172 Invalid, 3398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 3365 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 04:40:28,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12321 states. [2024-11-09 04:40:28,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12321 to 8678. [2024-11-09 04:40:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8678 states, 8669 states have (on average 2.7757526819702387) internal successors, (24063), 8677 states have internal predecessors, (24063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8678 states to 8678 states and 24063 transitions. [2024-11-09 04:40:28,306 INFO L78 Accepts]: Start accepts. Automaton has 8678 states and 24063 transitions. Word has length 70 [2024-11-09 04:40:28,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:28,306 INFO L471 AbstractCegarLoop]: Abstraction has 8678 states and 24063 transitions. [2024-11-09 04:40:28,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:28,307 INFO L276 IsEmpty]: Start isEmpty. Operand 8678 states and 24063 transitions. [2024-11-09 04:40:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:28,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:28,310 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:28,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-09 04:40:28,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable200 [2024-11-09 04:40:28,510 INFO L396 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:28,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:28,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1226438570, now seen corresponding path program 28 times [2024-11-09 04:40:28,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:28,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548415903] [2024-11-09 04:40:28,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:28,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:29,155 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:29,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:29,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548415903] [2024-11-09 04:40:29,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548415903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:29,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:29,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 04:40:29,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588019160] [2024-11-09 04:40:29,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:29,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 04:40:29,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:29,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 04:40:29,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-09 04:40:29,157 INFO L87 Difference]: Start difference. First operand 8678 states and 24063 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:31,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:31,226 INFO L93 Difference]: Finished difference Result 11178 states and 29929 transitions. [2024-11-09 04:40:31,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 04:40:31,227 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:31,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:31,265 INFO L225 Difference]: With dead ends: 11178 [2024-11-09 04:40:31,265 INFO L226 Difference]: Without dead ends: 10752 [2024-11-09 04:40:31,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 04:40:31,270 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 317 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:31,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 112 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:40:31,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10752 states. [2024-11-09 04:40:31,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10752 to 8676. [2024-11-09 04:40:31,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8676 states, 8667 states have (on average 2.775585554401754) internal successors, (24056), 8675 states have internal predecessors, (24056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:31,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8676 states to 8676 states and 24056 transitions. [2024-11-09 04:40:31,459 INFO L78 Accepts]: Start accepts. Automaton has 8676 states and 24056 transitions. Word has length 70 [2024-11-09 04:40:31,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:31,459 INFO L471 AbstractCegarLoop]: Abstraction has 8676 states and 24056 transitions. [2024-11-09 04:40:31,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:31,460 INFO L276 IsEmpty]: Start isEmpty. Operand 8676 states and 24056 transitions. [2024-11-09 04:40:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:31,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:31,463 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:31,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2024-11-09 04:40:31,464 INFO L396 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:31,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:31,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1509485734, now seen corresponding path program 29 times [2024-11-09 04:40:31,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:31,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629780663] [2024-11-09 04:40:31,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:31,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:32,204 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:32,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:32,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629780663] [2024-11-09 04:40:32,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629780663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:32,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:32,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:40:32,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994992503] [2024-11-09 04:40:32,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:32,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:40:32,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:32,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:40:32,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:40:32,205 INFO L87 Difference]: Start difference. First operand 8676 states and 24056 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:34,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:34,164 INFO L93 Difference]: Finished difference Result 11010 states and 29528 transitions. [2024-11-09 04:40:34,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 04:40:34,164 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:34,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:34,200 INFO L225 Difference]: With dead ends: 11010 [2024-11-09 04:40:34,200 INFO L226 Difference]: Without dead ends: 10575 [2024-11-09 04:40:34,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 04:40:34,205 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 290 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:34,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 115 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1862 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:40:34,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2024-11-09 04:40:34,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 8674. [2024-11-09 04:40:34,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8674 states, 8665 states have (on average 2.7754183496826315) internal successors, (24049), 8673 states have internal predecessors, (24049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:34,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8674 states to 8674 states and 24049 transitions. [2024-11-09 04:40:34,384 INFO L78 Accepts]: Start accepts. Automaton has 8674 states and 24049 transitions. Word has length 70 [2024-11-09 04:40:34,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:34,384 INFO L471 AbstractCegarLoop]: Abstraction has 8674 states and 24049 transitions. [2024-11-09 04:40:34,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:34,385 INFO L276 IsEmpty]: Start isEmpty. Operand 8674 states and 24049 transitions. [2024-11-09 04:40:34,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:34,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:34,388 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:34,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2024-11-09 04:40:34,388 INFO L396 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:34,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2100521242, now seen corresponding path program 30 times [2024-11-09 04:40:34,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:34,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371457868] [2024-11-09 04:40:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:34,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:35,136 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:35,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:35,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371457868] [2024-11-09 04:40:35,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371457868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:35,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:35,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:40:35,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244734263] [2024-11-09 04:40:35,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:35,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:40:35,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:35,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:40:35,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:40:35,138 INFO L87 Difference]: Start difference. First operand 8674 states and 24049 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:37,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:37,333 INFO L93 Difference]: Finished difference Result 10941 states and 29376 transitions. [2024-11-09 04:40:37,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-09 04:40:37,333 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:37,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:37,371 INFO L225 Difference]: With dead ends: 10941 [2024-11-09 04:40:37,372 INFO L226 Difference]: Without dead ends: 10524 [2024-11-09 04:40:37,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=427, Invalid=1465, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 04:40:37,376 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 343 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:37,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 97 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:40:37,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2024-11-09 04:40:37,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 8680. [2024-11-09 04:40:37,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8680 states, 8671 states have (on average 2.7756890785376545) internal successors, (24068), 8679 states have internal predecessors, (24068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:37,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8680 states to 8680 states and 24068 transitions. [2024-11-09 04:40:37,554 INFO L78 Accepts]: Start accepts. Automaton has 8680 states and 24068 transitions. Word has length 70 [2024-11-09 04:40:37,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:37,555 INFO L471 AbstractCegarLoop]: Abstraction has 8680 states and 24068 transitions. [2024-11-09 04:40:37,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:37,555 INFO L276 IsEmpty]: Start isEmpty. Operand 8680 states and 24068 transitions. [2024-11-09 04:40:37,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:37,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:37,558 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:37,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2024-11-09 04:40:37,559 INFO L396 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:37,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash -996326848, now seen corresponding path program 31 times [2024-11-09 04:40:37,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:37,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124457622] [2024-11-09 04:40:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:37,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:38,334 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:38,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:38,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124457622] [2024-11-09 04:40:38,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124457622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:40:38,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767020297] [2024-11-09 04:40:38,335 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:40:38,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:38,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:40:38,337 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:40:38,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 04:40:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:38,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:40:38,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:39,136 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:39,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:40:39,218 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:39,218 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:40:41,548 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:40:41,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:40:41,631 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:41,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767020297] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:40:41,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1278474679] [2024-11-09 04:40:41,632 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:40:41,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:40:41,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:40:41,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800603242] [2024-11-09 04:40:41,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:40:41,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:40:41,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:41,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:40:41,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=750, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:40:41,634 INFO L87 Difference]: Start difference. First operand 8680 states and 24068 transitions. Second operand has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:46,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:46,496 INFO L93 Difference]: Finished difference Result 12387 states and 33344 transitions. [2024-11-09 04:40:46,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-09 04:40:46,497 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:46,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:46,540 INFO L225 Difference]: With dead ends: 12387 [2024-11-09 04:40:46,540 INFO L226 Difference]: Without dead ends: 11979 [2024-11-09 04:40:46,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1685 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1149, Invalid=5493, Unknown=0, NotChecked=0, Total=6642 [2024-11-09 04:40:46,546 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 730 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 3143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:46,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 151 Invalid, 3143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 04:40:46,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11979 states. [2024-11-09 04:40:46,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11979 to 8678. [2024-11-09 04:40:46,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8678 states, 8669 states have (on average 2.775521974852924) internal successors, (24061), 8677 states have internal predecessors, (24061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8678 states to 8678 states and 24061 transitions. [2024-11-09 04:40:46,757 INFO L78 Accepts]: Start accepts. Automaton has 8678 states and 24061 transitions. Word has length 70 [2024-11-09 04:40:46,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:46,757 INFO L471 AbstractCegarLoop]: Abstraction has 8678 states and 24061 transitions. [2024-11-09 04:40:46,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:46,758 INFO L276 IsEmpty]: Start isEmpty. Operand 8678 states and 24061 transitions. [2024-11-09 04:40:46,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:46,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:46,762 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:46,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-09 04:40:46,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:46,962 INFO L396 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:46,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:46,963 INFO L85 PathProgramCache]: Analyzing trace with hash 289265272, now seen corresponding path program 32 times [2024-11-09 04:40:46,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:46,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180764214] [2024-11-09 04:40:46,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:46,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:47,654 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:47,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:47,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180764214] [2024-11-09 04:40:47,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180764214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:40:47,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39318632] [2024-11-09 04:40:47,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:40:47,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:47,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:40:47,657 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:40:47,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-09 04:40:48,119 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:40:48,119 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:40:48,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 04:40:48,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:48,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 04:40:48,831 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:48,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:40:49,198 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:40:49,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:40:49,309 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:49,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39318632] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:40:49,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1272005936] [2024-11-09 04:40:49,310 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:40:49,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:40:49,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 32 [2024-11-09 04:40:49,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226381945] [2024-11-09 04:40:49,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:40:49,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 04:40:49,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:49,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 04:40:49,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=845, Unknown=0, NotChecked=0, Total=992 [2024-11-09 04:40:49,311 INFO L87 Difference]: Start difference. First operand 8678 states and 24061 transitions. Second operand has 32 states, 32 states have (on average 3.375) internal successors, (108), 32 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:54,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:54,035 INFO L93 Difference]: Finished difference Result 12191 states and 32721 transitions. [2024-11-09 04:40:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 04:40:54,036 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.375) internal successors, (108), 32 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:54,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:54,078 INFO L225 Difference]: With dead ends: 12191 [2024-11-09 04:40:54,078 INFO L226 Difference]: Without dead ends: 11783 [2024-11-09 04:40:54,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1004, Invalid=4398, Unknown=0, NotChecked=0, Total=5402 [2024-11-09 04:40:54,084 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 632 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 3297 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 3316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:54,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 196 Invalid, 3316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3297 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 04:40:54,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11783 states. [2024-11-09 04:40:54,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11783 to 8676. [2024-11-09 04:40:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8676 states, 8667 states have (on average 2.775354794046383) internal successors, (24054), 8675 states have internal predecessors, (24054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8676 states to 8676 states and 24054 transitions. [2024-11-09 04:40:54,288 INFO L78 Accepts]: Start accepts. Automaton has 8676 states and 24054 transitions. Word has length 70 [2024-11-09 04:40:54,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:54,288 INFO L471 AbstractCegarLoop]: Abstraction has 8676 states and 24054 transitions. [2024-11-09 04:40:54,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.375) internal successors, (108), 32 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:54,289 INFO L276 IsEmpty]: Start isEmpty. Operand 8676 states and 24054 transitions. [2024-11-09 04:40:54,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:54,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:54,292 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:54,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-09 04:40:54,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:54,493 INFO L396 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:54,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:54,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1664873596, now seen corresponding path program 33 times [2024-11-09 04:40:54,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:54,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100933316] [2024-11-09 04:40:54,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:54,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:55,575 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 04:40:55,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:55,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100933316] [2024-11-09 04:40:55,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100933316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:40:55,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93187534] [2024-11-09 04:40:55,575 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:40:55,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:55,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:40:55,576 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:40:55,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-09 04:40:55,948 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:40:55,948 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:40:55,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:40:55,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:56,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:56,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:40:56,310 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:56,310 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:40:56,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93187534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:56,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:40:56,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [20] total 29 [2024-11-09 04:40:56,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264200840] [2024-11-09 04:40:56,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:56,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:40:56,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:56,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:40:56,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=701, Unknown=0, NotChecked=0, Total=812 [2024-11-09 04:40:56,311 INFO L87 Difference]: Start difference. First operand 8676 states and 24054 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:57,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:57,372 INFO L93 Difference]: Finished difference Result 10772 states and 28974 transitions. [2024-11-09 04:40:57,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:40:57,373 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:40:57,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:57,410 INFO L225 Difference]: With dead ends: 10772 [2024-11-09 04:40:57,411 INFO L226 Difference]: Without dead ends: 10355 [2024-11-09 04:40:57,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=163, Invalid=1097, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:40:57,415 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 143 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:57,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 195 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:40:57,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2024-11-09 04:40:57,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 8680. [2024-11-09 04:40:57,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8680 states, 8671 states have (on average 2.7756890785376545) internal successors, (24068), 8679 states have internal predecessors, (24068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:57,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8680 states to 8680 states and 24068 transitions. [2024-11-09 04:40:57,590 INFO L78 Accepts]: Start accepts. Automaton has 8680 states and 24068 transitions. Word has length 70 [2024-11-09 04:40:57,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:57,591 INFO L471 AbstractCegarLoop]: Abstraction has 8680 states and 24068 transitions. [2024-11-09 04:40:57,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:40:57,591 INFO L276 IsEmpty]: Start isEmpty. Operand 8680 states and 24068 transitions. [2024-11-09 04:40:57,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:40:57,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:57,595 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:57,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-09 04:40:57,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:57,795 INFO L396 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:40:57,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:57,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1431974494, now seen corresponding path program 34 times [2024-11-09 04:40:57,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:57,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038020227] [2024-11-09 04:40:57,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:57,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:58,456 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:58,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:58,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038020227] [2024-11-09 04:40:58,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038020227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:40:58,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853358786] [2024-11-09 04:40:58,457 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:40:58,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:58,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:40:58,458 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:40:58,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-09 04:40:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:58,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:40:58,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:59,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:59,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:40:59,342 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:40:59,343 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:41:05,647 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:41:05,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:41:05,729 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:05,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853358786] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:41:05,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [521429743] [2024-11-09 04:41:05,730 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:41:05,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:41:05,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:41:05,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408543026] [2024-11-09 04:41:05,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:41:05,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:41:05,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:05,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:41:05,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=751, Unknown=1, NotChecked=0, Total=870 [2024-11-09 04:41:05,732 INFO L87 Difference]: Start difference. First operand 8680 states and 24068 transitions. Second operand has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:10,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:10,551 INFO L93 Difference]: Finished difference Result 12695 states and 34194 transitions. [2024-11-09 04:41:10,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-09 04:41:10,552 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:10,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:10,599 INFO L225 Difference]: With dead ends: 12695 [2024-11-09 04:41:10,599 INFO L226 Difference]: Without dead ends: 12287 [2024-11-09 04:41:10,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1295 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=1071, Invalid=4330, Unknown=1, NotChecked=0, Total=5402 [2024-11-09 04:41:10,605 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 629 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 3365 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 3401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:10,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 192 Invalid, 3401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3365 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 04:41:10,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12287 states. [2024-11-09 04:41:10,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12287 to 8678. [2024-11-09 04:41:10,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8678 states, 8669 states have (on average 2.775521974852924) internal successors, (24061), 8677 states have internal predecessors, (24061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8678 states to 8678 states and 24061 transitions. [2024-11-09 04:41:10,820 INFO L78 Accepts]: Start accepts. Automaton has 8678 states and 24061 transitions. Word has length 70 [2024-11-09 04:41:10,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:10,821 INFO L471 AbstractCegarLoop]: Abstraction has 8678 states and 24061 transitions. [2024-11-09 04:41:10,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.1) internal successors, (93), 30 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 8678 states and 24061 transitions. [2024-11-09 04:41:10,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:10,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:10,825 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:10,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-09 04:41:11,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:41:11,025 INFO L396 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:11,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:11,026 INFO L85 PathProgramCache]: Analyzing trace with hash 700679506, now seen corresponding path program 35 times [2024-11-09 04:41:11,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:11,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514904175] [2024-11-09 04:41:11,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:11,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:11,819 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:11,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:11,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514904175] [2024-11-09 04:41:11,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514904175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:11,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:11,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:41:11,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423086852] [2024-11-09 04:41:11,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:11,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:41:11,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:11,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:41:11,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:41:11,821 INFO L87 Difference]: Start difference. First operand 8678 states and 24061 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:14,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:14,078 INFO L93 Difference]: Finished difference Result 11194 states and 29957 transitions. [2024-11-09 04:41:14,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-09 04:41:14,078 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:14,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:14,118 INFO L225 Difference]: With dead ends: 11194 [2024-11-09 04:41:14,118 INFO L226 Difference]: Without dead ends: 10768 [2024-11-09 04:41:14,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=406, Invalid=1400, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 04:41:14,124 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 400 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:14,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 91 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:41:14,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10768 states. [2024-11-09 04:41:14,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10768 to 8672. [2024-11-09 04:41:14,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8672 states, 8663 states have (on average 2.7754819346646658) internal successors, (24044), 8671 states have internal predecessors, (24044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:14,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8672 states to 8672 states and 24044 transitions. [2024-11-09 04:41:14,300 INFO L78 Accepts]: Start accepts. Automaton has 8672 states and 24044 transitions. Word has length 70 [2024-11-09 04:41:14,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:14,301 INFO L471 AbstractCegarLoop]: Abstraction has 8672 states and 24044 transitions. [2024-11-09 04:41:14,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:14,301 INFO L276 IsEmpty]: Start isEmpty. Operand 8672 states and 24044 transitions. [2024-11-09 04:41:14,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:14,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:14,304 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:14,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2024-11-09 04:41:14,305 INFO L396 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:14,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:14,305 INFO L85 PathProgramCache]: Analyzing trace with hash -426402094, now seen corresponding path program 1 times [2024-11-09 04:41:14,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:14,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105051784] [2024-11-09 04:41:14,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:14,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:14,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:14,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105051784] [2024-11-09 04:41:14,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105051784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:14,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:14,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:41:14,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305945744] [2024-11-09 04:41:14,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:14,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:41:14,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:14,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:41:14,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:41:14,883 INFO L87 Difference]: Start difference. First operand 8672 states and 24044 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:16,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:16,147 INFO L93 Difference]: Finished difference Result 10216 states and 27651 transitions. [2024-11-09 04:41:16,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 04:41:16,147 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:16,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:16,182 INFO L225 Difference]: With dead ends: 10216 [2024-11-09 04:41:16,182 INFO L226 Difference]: Without dead ends: 9729 [2024-11-09 04:41:16,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 04:41:16,187 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 233 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:16,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 98 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:41:16,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9729 states. [2024-11-09 04:41:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9729 to 8698. [2024-11-09 04:41:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8698 states, 8689 states have (on average 2.774197260904592) internal successors, (24105), 8697 states have internal predecessors, (24105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8698 states to 8698 states and 24105 transitions. [2024-11-09 04:41:16,351 INFO L78 Accepts]: Start accepts. Automaton has 8698 states and 24105 transitions. Word has length 70 [2024-11-09 04:41:16,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:16,352 INFO L471 AbstractCegarLoop]: Abstraction has 8698 states and 24105 transitions. [2024-11-09 04:41:16,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:16,352 INFO L276 IsEmpty]: Start isEmpty. Operand 8698 states and 24105 transitions. [2024-11-09 04:41:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:16,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:16,355 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:16,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2024-11-09 04:41:16,356 INFO L396 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:16,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:16,356 INFO L85 PathProgramCache]: Analyzing trace with hash -774545746, now seen corresponding path program 2 times [2024-11-09 04:41:16,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:16,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053360599] [2024-11-09 04:41:16,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:16,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:17,030 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:17,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:17,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053360599] [2024-11-09 04:41:17,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053360599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:17,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:17,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:41:17,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338165215] [2024-11-09 04:41:17,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:17,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:41:17,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:17,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:41:17,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:41:17,031 INFO L87 Difference]: Start difference. First operand 8698 states and 24105 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:19,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:19,460 INFO L93 Difference]: Finished difference Result 11076 states and 29847 transitions. [2024-11-09 04:41:19,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-09 04:41:19,461 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:19,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:19,499 INFO L225 Difference]: With dead ends: 11076 [2024-11-09 04:41:19,499 INFO L226 Difference]: Without dead ends: 10693 [2024-11-09 04:41:19,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=428, Invalid=1464, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 04:41:19,504 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 336 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:19,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 165 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:41:19,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10693 states. [2024-11-09 04:41:19,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10693 to 8706. [2024-11-09 04:41:19,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8706 states, 8697 states have (on average 2.7748648959411293) internal successors, (24133), 8705 states have internal predecessors, (24133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:19,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8706 states to 8706 states and 24133 transitions. [2024-11-09 04:41:19,743 INFO L78 Accepts]: Start accepts. Automaton has 8706 states and 24133 transitions. Word has length 70 [2024-11-09 04:41:19,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:19,744 INFO L471 AbstractCegarLoop]: Abstraction has 8706 states and 24133 transitions. [2024-11-09 04:41:19,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:19,744 INFO L276 IsEmpty]: Start isEmpty. Operand 8706 states and 24133 transitions. [2024-11-09 04:41:19,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:19,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:19,748 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:19,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2024-11-09 04:41:19,748 INFO L396 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:19,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:19,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1307392174, now seen corresponding path program 3 times [2024-11-09 04:41:19,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:19,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371890217] [2024-11-09 04:41:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:19,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:20,474 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:20,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:20,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371890217] [2024-11-09 04:41:20,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371890217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:41:20,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109627663] [2024-11-09 04:41:20,474 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:41:20,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:41:20,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:41:20,478 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:41:20,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-09 04:41:20,894 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:41:20,895 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:41:20,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:41:20,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:41:21,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:21,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2024-11-09 04:41:21,222 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:21,223 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:41:23,768 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:41:23,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:41:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:23,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109627663] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:41:23,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [237907989] [2024-11-09 04:41:23,860 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:41:23,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:41:23,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:41:23,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30269531] [2024-11-09 04:41:23,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:41:23,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:41:23,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:23,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:41:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=745, Unknown=1, NotChecked=0, Total=870 [2024-11-09 04:41:23,863 INFO L87 Difference]: Start difference. First operand 8706 states and 24133 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:27,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:27,455 INFO L93 Difference]: Finished difference Result 12541 states and 33832 transitions. [2024-11-09 04:41:27,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-09 04:41:27,456 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:27,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:27,505 INFO L225 Difference]: With dead ends: 12541 [2024-11-09 04:41:27,505 INFO L226 Difference]: Without dead ends: 12166 [2024-11-09 04:41:27,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=821, Invalid=2838, Unknown=1, NotChecked=0, Total=3660 [2024-11-09 04:41:27,511 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 658 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 2363 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:27,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 197 Invalid, 2389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2363 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 04:41:27,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12166 states. [2024-11-09 04:41:27,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12166 to 8795. [2024-11-09 04:41:27,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8795 states, 8786 states have (on average 2.7743000227634873) internal successors, (24375), 8794 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:27,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8795 states to 8795 states and 24375 transitions. [2024-11-09 04:41:27,743 INFO L78 Accepts]: Start accepts. Automaton has 8795 states and 24375 transitions. Word has length 70 [2024-11-09 04:41:27,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:27,743 INFO L471 AbstractCegarLoop]: Abstraction has 8795 states and 24375 transitions. [2024-11-09 04:41:27,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 8795 states and 24375 transitions. [2024-11-09 04:41:27,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:27,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:27,747 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:27,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-09 04:41:27,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable211 [2024-11-09 04:41:27,948 INFO L396 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:27,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:27,948 INFO L85 PathProgramCache]: Analyzing trace with hash -279017646, now seen corresponding path program 4 times [2024-11-09 04:41:27,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:27,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626913420] [2024-11-09 04:41:27,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:27,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:28,732 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:28,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:28,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626913420] [2024-11-09 04:41:28,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626913420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:28,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:28,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:41:28,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263107237] [2024-11-09 04:41:28,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:28,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:41:28,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:28,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:41:28,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:41:28,734 INFO L87 Difference]: Start difference. First operand 8795 states and 24375 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:30,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:30,771 INFO L93 Difference]: Finished difference Result 10868 states and 29286 transitions. [2024-11-09 04:41:30,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 04:41:30,771 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:30,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:30,809 INFO L225 Difference]: With dead ends: 10868 [2024-11-09 04:41:30,809 INFO L226 Difference]: Without dead ends: 10475 [2024-11-09 04:41:30,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=337, Invalid=1223, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 04:41:30,814 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 319 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:30,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 122 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 04:41:30,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10475 states. [2024-11-09 04:41:30,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10475 to 8795. [2024-11-09 04:41:30,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8795 states, 8786 states have (on average 2.7740723878898246) internal successors, (24373), 8794 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:30,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8795 states to 8795 states and 24373 transitions. [2024-11-09 04:41:31,002 INFO L78 Accepts]: Start accepts. Automaton has 8795 states and 24373 transitions. Word has length 70 [2024-11-09 04:41:31,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:31,002 INFO L471 AbstractCegarLoop]: Abstraction has 8795 states and 24373 transitions. [2024-11-09 04:41:31,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:31,002 INFO L276 IsEmpty]: Start isEmpty. Operand 8795 states and 24373 transitions. [2024-11-09 04:41:31,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:31,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:31,006 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:31,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2024-11-09 04:41:31,006 INFO L396 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:31,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:31,007 INFO L85 PathProgramCache]: Analyzing trace with hash 663588014, now seen corresponding path program 5 times [2024-11-09 04:41:31,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:31,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387778027] [2024-11-09 04:41:31,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:31,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:31,665 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:31,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:31,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387778027] [2024-11-09 04:41:31,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387778027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:31,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:31,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:41:31,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394701247] [2024-11-09 04:41:31,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:31,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:41:31,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:31,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:41:31,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:41:31,666 INFO L87 Difference]: Start difference. First operand 8795 states and 24373 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:33,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:33,751 INFO L93 Difference]: Finished difference Result 10312 states and 27914 transitions. [2024-11-09 04:41:33,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 04:41:33,752 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:33,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:33,788 INFO L225 Difference]: With dead ends: 10312 [2024-11-09 04:41:33,789 INFO L226 Difference]: Without dead ends: 9909 [2024-11-09 04:41:33,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=264, Invalid=996, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:41:33,793 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 267 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:33,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 161 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:41:33,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9909 states. [2024-11-09 04:41:33,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9909 to 8795. [2024-11-09 04:41:33,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8795 states, 8786 states have (on average 2.7736171181424996) internal successors, (24369), 8794 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:33,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8795 states to 8795 states and 24369 transitions. [2024-11-09 04:41:33,989 INFO L78 Accepts]: Start accepts. Automaton has 8795 states and 24369 transitions. Word has length 70 [2024-11-09 04:41:33,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:33,989 INFO L471 AbstractCegarLoop]: Abstraction has 8795 states and 24369 transitions. [2024-11-09 04:41:33,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:33,989 INFO L276 IsEmpty]: Start isEmpty. Operand 8795 states and 24369 transitions. [2024-11-09 04:41:33,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:33,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:33,993 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:33,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2024-11-09 04:41:33,993 INFO L396 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:33,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:33,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1317550142, now seen corresponding path program 6 times [2024-11-09 04:41:33,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:33,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55820887] [2024-11-09 04:41:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:33,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:34,718 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:34,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55820887] [2024-11-09 04:41:34,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55820887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:34,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:34,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:41:34,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335220725] [2024-11-09 04:41:34,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:34,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:41:34,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:34,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:41:34,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:41:34,720 INFO L87 Difference]: Start difference. First operand 8795 states and 24369 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:37,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:37,085 INFO L93 Difference]: Finished difference Result 11263 states and 30337 transitions. [2024-11-09 04:41:37,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 04:41:37,086 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:37,121 INFO L225 Difference]: With dead ends: 11263 [2024-11-09 04:41:37,121 INFO L226 Difference]: Without dead ends: 10880 [2024-11-09 04:41:37,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=526, Invalid=1730, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 04:41:37,126 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 331 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:37,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 123 Invalid, 1859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:41:37,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10880 states. [2024-11-09 04:41:37,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10880 to 8805. [2024-11-09 04:41:37,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8805 states, 8796 states have (on average 2.7742155525238745) internal successors, (24402), 8804 states have internal predecessors, (24402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:37,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8805 states to 8805 states and 24402 transitions. [2024-11-09 04:41:37,303 INFO L78 Accepts]: Start accepts. Automaton has 8805 states and 24402 transitions. Word has length 70 [2024-11-09 04:41:37,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:37,303 INFO L471 AbstractCegarLoop]: Abstraction has 8805 states and 24402 transitions. [2024-11-09 04:41:37,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:37,304 INFO L276 IsEmpty]: Start isEmpty. Operand 8805 states and 24402 transitions. [2024-11-09 04:41:37,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:37,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:37,307 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:37,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2024-11-09 04:41:37,307 INFO L396 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:37,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:37,308 INFO L85 PathProgramCache]: Analyzing trace with hash 764387778, now seen corresponding path program 7 times [2024-11-09 04:41:37,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:37,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286415336] [2024-11-09 04:41:37,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:37,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:38,047 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:38,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:38,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286415336] [2024-11-09 04:41:38,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286415336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:41:38,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456816204] [2024-11-09 04:41:38,048 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:41:38,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:41:38,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:41:38,051 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:41:38,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-09 04:41:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:38,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:41:38,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:41:38,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:38,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2024-11-09 04:41:38,870 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:38,871 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:41:43,235 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:41:43,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:41:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:43,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456816204] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:41:43,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1384785191] [2024-11-09 04:41:43,319 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:41:43,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:41:43,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:41:43,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831931409] [2024-11-09 04:41:43,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:41:43,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:41:43,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:43,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:41:43,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=733, Unknown=1, NotChecked=0, Total=870 [2024-11-09 04:41:43,322 INFO L87 Difference]: Start difference. First operand 8805 states and 24402 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:47,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:47,148 INFO L93 Difference]: Finished difference Result 12952 states and 34775 transitions. [2024-11-09 04:41:47,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-09 04:41:47,148 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:47,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:47,199 INFO L225 Difference]: With dead ends: 12952 [2024-11-09 04:41:47,199 INFO L226 Difference]: Without dead ends: 12577 [2024-11-09 04:41:47,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1018, Invalid=3403, Unknown=1, NotChecked=0, Total=4422 [2024-11-09 04:41:47,206 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 571 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 3008 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 3034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:47,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 201 Invalid, 3034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3008 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 04:41:47,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12577 states. [2024-11-09 04:41:47,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12577 to 8803. [2024-11-09 04:41:47,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8803 states, 8794 states have (on average 2.774050488969752) internal successors, (24395), 8802 states have internal predecessors, (24395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:47,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8803 states to 8803 states and 24395 transitions. [2024-11-09 04:41:47,502 INFO L78 Accepts]: Start accepts. Automaton has 8803 states and 24395 transitions. Word has length 70 [2024-11-09 04:41:47,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:47,503 INFO L471 AbstractCegarLoop]: Abstraction has 8803 states and 24395 transitions. [2024-11-09 04:41:47,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:47,503 INFO L276 IsEmpty]: Start isEmpty. Operand 8803 states and 24395 transitions. [2024-11-09 04:41:47,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:47,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:47,507 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:47,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-09 04:41:47,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable215 [2024-11-09 04:41:47,708 INFO L396 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:47,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:47,709 INFO L85 PathProgramCache]: Analyzing trace with hash -822022042, now seen corresponding path program 8 times [2024-11-09 04:41:47,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:47,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319870793] [2024-11-09 04:41:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:47,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:48,420 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:48,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:48,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319870793] [2024-11-09 04:41:48,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319870793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:48,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:48,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:41:48,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590337628] [2024-11-09 04:41:48,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:48,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:41:48,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:48,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:41:48,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:41:48,422 INFO L87 Difference]: Start difference. First operand 8803 states and 24395 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:50,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:50,365 INFO L93 Difference]: Finished difference Result 10955 states and 29507 transitions. [2024-11-09 04:41:50,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-09 04:41:50,365 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:50,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:50,410 INFO L225 Difference]: With dead ends: 10955 [2024-11-09 04:41:50,410 INFO L226 Difference]: Without dead ends: 10562 [2024-11-09 04:41:50,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=381, Invalid=1341, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:41:50,415 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 350 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:50,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 91 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 04:41:50,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2024-11-09 04:41:50,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 8801. [2024-11-09 04:41:50,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8801 states, 8792 states have (on average 2.7738853503184715) internal successors, (24388), 8800 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8801 states to 8801 states and 24388 transitions. [2024-11-09 04:41:50,635 INFO L78 Accepts]: Start accepts. Automaton has 8801 states and 24388 transitions. Word has length 70 [2024-11-09 04:41:50,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:50,636 INFO L471 AbstractCegarLoop]: Abstraction has 8801 states and 24388 transitions. [2024-11-09 04:41:50,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 8801 states and 24388 transitions. [2024-11-09 04:41:50,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:50,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:50,640 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:50,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2024-11-09 04:41:50,641 INFO L396 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:50,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:50,641 INFO L85 PathProgramCache]: Analyzing trace with hash 120583618, now seen corresponding path program 9 times [2024-11-09 04:41:50,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:50,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224525116] [2024-11-09 04:41:50,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:50,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:51,386 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:51,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:51,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224525116] [2024-11-09 04:41:51,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224525116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:51,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:51,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:41:51,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121816931] [2024-11-09 04:41:51,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:51,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:41:51,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:51,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:41:51,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:41:51,388 INFO L87 Difference]: Start difference. First operand 8801 states and 24388 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:53,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:53,367 INFO L93 Difference]: Finished difference Result 10393 states and 28118 transitions. [2024-11-09 04:41:53,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 04:41:53,368 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:53,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:53,410 INFO L225 Difference]: With dead ends: 10393 [2024-11-09 04:41:53,410 INFO L226 Difference]: Without dead ends: 9990 [2024-11-09 04:41:53,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=277, Invalid=983, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:41:53,415 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 265 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:53,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 126 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:41:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9990 states. [2024-11-09 04:41:53,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9990 to 8797. [2024-11-09 04:41:53,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8797 states, 8788 states have (on average 2.773554847519345) internal successors, (24374), 8796 states have internal predecessors, (24374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:53,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8797 states to 8797 states and 24374 transitions. [2024-11-09 04:41:53,718 INFO L78 Accepts]: Start accepts. Automaton has 8797 states and 24374 transitions. Word has length 70 [2024-11-09 04:41:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:53,719 INFO L471 AbstractCegarLoop]: Abstraction has 8797 states and 24374 transitions. [2024-11-09 04:41:53,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:53,719 INFO L276 IsEmpty]: Start isEmpty. Operand 8797 states and 24374 transitions. [2024-11-09 04:41:53,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:53,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:53,723 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:53,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2024-11-09 04:41:53,723 INFO L396 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:53,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:53,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2044612698, now seen corresponding path program 10 times [2024-11-09 04:41:53,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:53,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34421531] [2024-11-09 04:41:53,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:53,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:54,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:54,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34421531] [2024-11-09 04:41:54,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34421531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:54,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:54,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:41:54,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215581357] [2024-11-09 04:41:54,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:54,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:41:54,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:41:54,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:41:54,491 INFO L87 Difference]: Start difference. First operand 8797 states and 24374 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:57,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:57,187 INFO L93 Difference]: Finished difference Result 11229 states and 30242 transitions. [2024-11-09 04:41:57,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-09 04:41:57,188 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:41:57,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:57,223 INFO L225 Difference]: With dead ends: 11229 [2024-11-09 04:41:57,223 INFO L226 Difference]: Without dead ends: 10846 [2024-11-09 04:41:57,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=571, Invalid=1979, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 04:41:57,228 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 338 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:57,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 130 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 04:41:57,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10846 states. [2024-11-09 04:41:57,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10846 to 8803. [2024-11-09 04:41:57,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8803 states, 8794 states have (on average 2.773823061178076) internal successors, (24393), 8802 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:57,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8803 states to 8803 states and 24393 transitions. [2024-11-09 04:41:57,432 INFO L78 Accepts]: Start accepts. Automaton has 8803 states and 24393 transitions. Word has length 70 [2024-11-09 04:41:57,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:57,432 INFO L471 AbstractCegarLoop]: Abstraction has 8803 states and 24393 transitions. [2024-11-09 04:41:57,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:41:57,432 INFO L276 IsEmpty]: Start isEmpty. Operand 8803 states and 24393 transitions. [2024-11-09 04:41:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:41:57,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:57,436 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:57,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2024-11-09 04:41:57,436 INFO L396 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:41:57,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:57,437 INFO L85 PathProgramCache]: Analyzing trace with hash -168416678, now seen corresponding path program 11 times [2024-11-09 04:41:57,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:57,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265180504] [2024-11-09 04:41:57,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:57,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:58,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:58,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265180504] [2024-11-09 04:41:58,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265180504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:41:58,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106010232] [2024-11-09 04:41:58,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:41:58,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:41:58,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:41:58,175 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:41:58,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-09 04:41:58,614 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:41:58,614 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:41:58,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:41:58,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:41:59,063 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:59,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 46 [2024-11-09 04:41:59,171 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:59,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:41:59,448 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:41:59,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:41:59,538 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:41:59,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106010232] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:41:59,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1963739330] [2024-11-09 04:41:59,538 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:41:59,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:41:59,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 33 [2024-11-09 04:41:59,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209700655] [2024-11-09 04:41:59,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:41:59,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 04:41:59,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:59,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 04:41:59,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 04:41:59,540 INFO L87 Difference]: Start difference. First operand 8803 states and 24393 transitions. Second operand has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:03,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:03,709 INFO L93 Difference]: Finished difference Result 12893 states and 34618 transitions. [2024-11-09 04:42:03,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 04:42:03,710 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:03,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:03,759 INFO L225 Difference]: With dead ends: 12893 [2024-11-09 04:42:03,759 INFO L226 Difference]: Without dead ends: 12518 [2024-11-09 04:42:03,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=907, Invalid=3515, Unknown=0, NotChecked=0, Total=4422 [2024-11-09 04:42:03,765 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 640 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 2981 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 3009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:03,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 210 Invalid, 3009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2981 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 04:42:03,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12518 states. [2024-11-09 04:42:03,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12518 to 8801. [2024-11-09 04:42:03,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8801 states, 8792 states have (on average 2.7736578707916286) internal successors, (24386), 8800 states have internal predecessors, (24386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8801 states to 8801 states and 24386 transitions. [2024-11-09 04:42:03,984 INFO L78 Accepts]: Start accepts. Automaton has 8801 states and 24386 transitions. Word has length 70 [2024-11-09 04:42:03,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:03,985 INFO L471 AbstractCegarLoop]: Abstraction has 8801 states and 24386 transitions. [2024-11-09 04:42:03,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:03,985 INFO L276 IsEmpty]: Start isEmpty. Operand 8801 states and 24386 transitions. [2024-11-09 04:42:03,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:42:03,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:03,989 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:04,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-09 04:42:04,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:42:04,190 INFO L396 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:42:04,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:04,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1754826498, now seen corresponding path program 12 times [2024-11-09 04:42:04,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:04,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447604667] [2024-11-09 04:42:04,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:04,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:04,914 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:04,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:04,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447604667] [2024-11-09 04:42:04,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447604667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:04,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:04,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:42:04,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220080185] [2024-11-09 04:42:04,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:04,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:42:04,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:04,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:42:04,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:42:04,916 INFO L87 Difference]: Start difference. First operand 8801 states and 24386 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:07,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:07,183 INFO L93 Difference]: Finished difference Result 10913 states and 29392 transitions. [2024-11-09 04:42:07,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-09 04:42:07,184 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:07,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:07,227 INFO L225 Difference]: With dead ends: 10913 [2024-11-09 04:42:07,227 INFO L226 Difference]: Without dead ends: 10520 [2024-11-09 04:42:07,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=399, Invalid=1407, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 04:42:07,232 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 330 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:07,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 126 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:42:07,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2024-11-09 04:42:07,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 8799. [2024-11-09 04:42:07,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8799 states, 8790 states have (on average 2.7734926052332196) internal successors, (24379), 8798 states have internal predecessors, (24379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:07,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8799 states to 8799 states and 24379 transitions. [2024-11-09 04:42:07,430 INFO L78 Accepts]: Start accepts. Automaton has 8799 states and 24379 transitions. Word has length 70 [2024-11-09 04:42:07,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:07,430 INFO L471 AbstractCegarLoop]: Abstraction has 8799 states and 24379 transitions. [2024-11-09 04:42:07,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:07,431 INFO L276 IsEmpty]: Start isEmpty. Operand 8799 states and 24379 transitions. [2024-11-09 04:42:07,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:42:07,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:07,435 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:07,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2024-11-09 04:42:07,435 INFO L396 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:42:07,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:07,435 INFO L85 PathProgramCache]: Analyzing trace with hash -244394532, now seen corresponding path program 13 times [2024-11-09 04:42:07,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:07,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030335705] [2024-11-09 04:42:07,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:07,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:08,307 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:08,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:08,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030335705] [2024-11-09 04:42:08,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030335705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:08,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:08,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:42:08,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180412464] [2024-11-09 04:42:08,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:08,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:42:08,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:08,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:42:08,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:42:08,309 INFO L87 Difference]: Start difference. First operand 8799 states and 24379 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:10,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:10,555 INFO L93 Difference]: Finished difference Result 10771 states and 29141 transitions. [2024-11-09 04:42:10,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-09 04:42:10,555 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:10,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:10,595 INFO L225 Difference]: With dead ends: 10771 [2024-11-09 04:42:10,595 INFO L226 Difference]: Without dead ends: 10388 [2024-11-09 04:42:10,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=374, Invalid=1348, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:42:10,600 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 245 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:10,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 106 Invalid, 1740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:42:10,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10388 states. [2024-11-09 04:42:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10388 to 8803. [2024-11-09 04:42:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8803 states, 8794 states have (on average 2.773823061178076) internal successors, (24393), 8802 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:10,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8803 states to 8803 states and 24393 transitions. [2024-11-09 04:42:10,800 INFO L78 Accepts]: Start accepts. Automaton has 8803 states and 24393 transitions. Word has length 70 [2024-11-09 04:42:10,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:10,801 INFO L471 AbstractCegarLoop]: Abstraction has 8803 states and 24393 transitions. [2024-11-09 04:42:10,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:10,801 INFO L276 IsEmpty]: Start isEmpty. Operand 8803 states and 24393 transitions. [2024-11-09 04:42:10,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:42:10,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:10,805 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:10,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2024-11-09 04:42:10,805 INFO L396 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:42:10,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:10,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1837543388, now seen corresponding path program 14 times [2024-11-09 04:42:10,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:10,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327809317] [2024-11-09 04:42:10,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:10,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:11,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:11,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327809317] [2024-11-09 04:42:11,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327809317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:42:11,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339780165] [2024-11-09 04:42:11,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:42:11,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:42:11,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:42:11,729 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:42:11,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-09 04:42:12,224 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:42:12,224 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:42:12,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:42:12,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:12,883 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:12,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 46 [2024-11-09 04:42:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:12,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:13,302 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:42:13,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:42:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:13,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339780165] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:42:13,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [779737961] [2024-11-09 04:42:13,393 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:42:13,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:42:13,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 33 [2024-11-09 04:42:13,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031436566] [2024-11-09 04:42:13,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:42:13,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 04:42:13,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:13,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 04:42:13,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=889, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 04:42:13,395 INFO L87 Difference]: Start difference. First operand 8803 states and 24393 transitions. Second operand has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:18,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:18,240 INFO L93 Difference]: Finished difference Result 12340 states and 33133 transitions. [2024-11-09 04:42:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-09 04:42:18,241 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:18,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:18,371 INFO L225 Difference]: With dead ends: 12340 [2024-11-09 04:42:18,371 INFO L226 Difference]: Without dead ends: 11965 [2024-11-09 04:42:18,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=910, Invalid=4346, Unknown=0, NotChecked=0, Total=5256 [2024-11-09 04:42:18,374 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 714 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 3125 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 3153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:18,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 188 Invalid, 3153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3125 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 04:42:18,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11965 states. [2024-11-09 04:42:18,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11965 to 8801. [2024-11-09 04:42:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8801 states, 8792 states have (on average 2.7736578707916286) internal successors, (24386), 8800 states have internal predecessors, (24386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:18,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8801 states to 8801 states and 24386 transitions. [2024-11-09 04:42:18,573 INFO L78 Accepts]: Start accepts. Automaton has 8801 states and 24386 transitions. Word has length 70 [2024-11-09 04:42:18,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:18,573 INFO L471 AbstractCegarLoop]: Abstraction has 8801 states and 24386 transitions. [2024-11-09 04:42:18,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:18,574 INFO L276 IsEmpty]: Start isEmpty. Operand 8801 states and 24386 transitions. [2024-11-09 04:42:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:42:18,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:18,577 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:18,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-09 04:42:18,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable222 [2024-11-09 04:42:18,778 INFO L396 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:42:18,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:18,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1921942162, now seen corresponding path program 15 times [2024-11-09 04:42:18,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:18,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554035114] [2024-11-09 04:42:18,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:18,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:19,463 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:19,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:19,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554035114] [2024-11-09 04:42:19,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554035114] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:42:19,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597384844] [2024-11-09 04:42:19,463 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:42:19,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:42:19,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:42:19,465 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:42:19,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-09 04:42:19,944 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:42:19,944 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:42:19,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:42:19,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:20,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:20,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2024-11-09 04:42:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:20,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:26,041 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:42:26,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:42:26,114 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:26,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597384844] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:42:26,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2063540869] [2024-11-09 04:42:26,115 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:42:26,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:42:26,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:42:26,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460539152] [2024-11-09 04:42:26,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:42:26,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:42:26,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:26,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:42:26,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=732, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:42:26,119 INFO L87 Difference]: Start difference. First operand 8801 states and 24386 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:30,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:30,538 INFO L93 Difference]: Finished difference Result 11179 states and 30234 transitions. [2024-11-09 04:42:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-09 04:42:30,538 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:30,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:30,579 INFO L225 Difference]: With dead ends: 11179 [2024-11-09 04:42:30,579 INFO L226 Difference]: Without dead ends: 10804 [2024-11-09 04:42:30,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=678, Invalid=2982, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 04:42:30,585 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 403 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 3453 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 3464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:30,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 212 Invalid, 3464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3453 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 04:42:30,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10804 states. [2024-11-09 04:42:30,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10804 to 8890. [2024-11-09 04:42:30,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8890 states, 8881 states have (on average 2.7731111361333185) internal successors, (24628), 8889 states have internal predecessors, (24628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:30,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8890 states to 8890 states and 24628 transitions. [2024-11-09 04:42:30,762 INFO L78 Accepts]: Start accepts. Automaton has 8890 states and 24628 transitions. Word has length 70 [2024-11-09 04:42:30,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:30,763 INFO L471 AbstractCegarLoop]: Abstraction has 8890 states and 24628 transitions. [2024-11-09 04:42:30,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 8890 states and 24628 transitions. [2024-11-09 04:42:30,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:42:30,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:30,766 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:30,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-09 04:42:30,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable223 [2024-11-09 04:42:30,967 INFO L396 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:42:30,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:30,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1511810552, now seen corresponding path program 16 times [2024-11-09 04:42:30,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:30,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738887577] [2024-11-09 04:42:30,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:30,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:31,686 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:31,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:31,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738887577] [2024-11-09 04:42:31,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738887577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:31,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:31,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:42:31,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396133705] [2024-11-09 04:42:31,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:31,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:42:31,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:31,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:42:31,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:42:31,688 INFO L87 Difference]: Start difference. First operand 8890 states and 24628 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:34,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:34,090 INFO L93 Difference]: Finished difference Result 11464 states and 30843 transitions. [2024-11-09 04:42:34,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-09 04:42:34,091 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:34,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:34,132 INFO L225 Difference]: With dead ends: 11464 [2024-11-09 04:42:34,132 INFO L226 Difference]: Without dead ends: 11081 [2024-11-09 04:42:34,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=440, Invalid=1540, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 04:42:34,137 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 354 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:34,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 145 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 04:42:34,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11081 states. [2024-11-09 04:42:34,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11081 to 8904. [2024-11-09 04:42:34,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8904 states, 8895 states have (on average 2.7733558178752107) internal successors, (24669), 8903 states have internal predecessors, (24669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:34,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8904 states to 8904 states and 24669 transitions. [2024-11-09 04:42:34,325 INFO L78 Accepts]: Start accepts. Automaton has 8904 states and 24669 transitions. Word has length 70 [2024-11-09 04:42:34,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:34,325 INFO L471 AbstractCegarLoop]: Abstraction has 8904 states and 24669 transitions. [2024-11-09 04:42:34,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:34,325 INFO L276 IsEmpty]: Start isEmpty. Operand 8904 states and 24669 transitions. [2024-11-09 04:42:34,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:42:34,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:34,329 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:34,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2024-11-09 04:42:34,329 INFO L396 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:42:34,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:34,330 INFO L85 PathProgramCache]: Analyzing trace with hash 570127368, now seen corresponding path program 17 times [2024-11-09 04:42:34,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:34,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657892873] [2024-11-09 04:42:34,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:34,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:34,979 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:34,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:34,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657892873] [2024-11-09 04:42:34,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657892873] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:42:34,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334855296] [2024-11-09 04:42:34,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:42:34,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:42:34,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:42:34,981 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:42:34,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-09 04:42:35,475 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:42:35,476 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:42:35,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:42:35,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:35,861 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:35,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 21 [2024-11-09 04:42:36,017 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:36,018 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:36,334 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:42:36,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:42:36,443 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:36,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334855296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:42:36,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1041263823] [2024-11-09 04:42:36,444 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:42:36,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:42:36,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 32 [2024-11-09 04:42:36,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090694312] [2024-11-09 04:42:36,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:42:36,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 04:42:36,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:36,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 04:42:36,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=844, Unknown=0, NotChecked=0, Total=992 [2024-11-09 04:42:36,446 INFO L87 Difference]: Start difference. First operand 8904 states and 24669 transitions. Second operand has 32 states, 32 states have (on average 3.34375) internal successors, (107), 32 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:39,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:39,779 INFO L93 Difference]: Finished difference Result 13131 states and 35228 transitions. [2024-11-09 04:42:39,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-09 04:42:39,780 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.34375) internal successors, (107), 32 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:39,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:39,830 INFO L225 Difference]: With dead ends: 13131 [2024-11-09 04:42:39,830 INFO L226 Difference]: Without dead ends: 12756 [2024-11-09 04:42:39,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=864, Invalid=3168, Unknown=0, NotChecked=0, Total=4032 [2024-11-09 04:42:39,837 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 701 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 3196 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 3223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:39,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 249 Invalid, 3223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3196 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 04:42:39,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12756 states. [2024-11-09 04:42:40,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12756 to 8902. [2024-11-09 04:42:40,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8902 states, 8893 states have (on average 2.7731923985156866) internal successors, (24662), 8901 states have internal predecessors, (24662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8902 states to 8902 states and 24662 transitions. [2024-11-09 04:42:40,171 INFO L78 Accepts]: Start accepts. Automaton has 8902 states and 24662 transitions. Word has length 70 [2024-11-09 04:42:40,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:40,171 INFO L471 AbstractCegarLoop]: Abstraction has 8902 states and 24662 transitions. [2024-11-09 04:42:40,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.34375) internal successors, (107), 32 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:40,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8902 states and 24662 transitions. [2024-11-09 04:42:40,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:42:40,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:40,175 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:40,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-09 04:42:40,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:42:40,378 INFO L396 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:42:40,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:40,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1016282452, now seen corresponding path program 18 times [2024-11-09 04:42:40,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:40,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286109246] [2024-11-09 04:42:40,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:40,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:41,140 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:41,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:41,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286109246] [2024-11-09 04:42:41,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286109246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:41,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:41,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:42:41,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301676635] [2024-11-09 04:42:41,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:41,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:42:41,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:41,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:42:41,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:42:41,142 INFO L87 Difference]: Start difference. First operand 8902 states and 24662 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:43,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:43,413 INFO L93 Difference]: Finished difference Result 11168 states and 30041 transitions. [2024-11-09 04:42:43,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-09 04:42:43,414 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:43,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:43,458 INFO L225 Difference]: With dead ends: 11168 [2024-11-09 04:42:43,459 INFO L226 Difference]: Without dead ends: 10769 [2024-11-09 04:42:43,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=1348, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:42:43,464 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 344 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:43,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 142 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:42:43,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10769 states. [2024-11-09 04:42:43,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10769 to 8900. [2024-11-09 04:42:43,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8900 states, 8891 states have (on average 2.7730289056349116) internal successors, (24655), 8899 states have internal predecessors, (24655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8900 states to 8900 states and 24655 transitions. [2024-11-09 04:42:43,669 INFO L78 Accepts]: Start accepts. Automaton has 8900 states and 24655 transitions. Word has length 70 [2024-11-09 04:42:43,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:43,669 INFO L471 AbstractCegarLoop]: Abstraction has 8900 states and 24655 transitions. [2024-11-09 04:42:43,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:43,670 INFO L276 IsEmpty]: Start isEmpty. Operand 8900 states and 24655 transitions. [2024-11-09 04:42:43,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:42:43,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:43,674 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:43,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2024-11-09 04:42:43,674 INFO L396 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:42:43,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:43,675 INFO L85 PathProgramCache]: Analyzing trace with hash -73676792, now seen corresponding path program 19 times [2024-11-09 04:42:43,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:43,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508413661] [2024-11-09 04:42:43,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:43,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:44,353 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:44,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:44,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508413661] [2024-11-09 04:42:44,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508413661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:44,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:44,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:42:44,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017646302] [2024-11-09 04:42:44,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:44,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:42:44,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:44,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:42:44,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:42:44,355 INFO L87 Difference]: Start difference. First operand 8900 states and 24655 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:46,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:46,154 INFO L93 Difference]: Finished difference Result 10594 states and 28626 transitions. [2024-11-09 04:42:46,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 04:42:46,154 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:46,197 INFO L225 Difference]: With dead ends: 10594 [2024-11-09 04:42:46,197 INFO L226 Difference]: Without dead ends: 10179 [2024-11-09 04:42:46,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=285, Invalid=975, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:42:46,202 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 308 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:46,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 145 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 04:42:46,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10179 states. [2024-11-09 04:42:46,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10179 to 8898. [2024-11-09 04:42:46,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8898 states, 8889 states have (on average 2.77286533918326) internal successors, (24648), 8897 states have internal predecessors, (24648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:46,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8898 states to 8898 states and 24648 transitions. [2024-11-09 04:42:46,407 INFO L78 Accepts]: Start accepts. Automaton has 8898 states and 24648 transitions. Word has length 70 [2024-11-09 04:42:46,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:46,407 INFO L471 AbstractCegarLoop]: Abstraction has 8898 states and 24648 transitions. [2024-11-09 04:42:46,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:46,408 INFO L276 IsEmpty]: Start isEmpty. Operand 8898 states and 24648 transitions. [2024-11-09 04:42:46,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:42:46,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:46,412 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:46,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2024-11-09 04:42:46,412 INFO L396 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:42:46,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:46,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1850352288, now seen corresponding path program 20 times [2024-11-09 04:42:46,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:46,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658462660] [2024-11-09 04:42:46,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:46,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:47,251 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:47,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:47,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658462660] [2024-11-09 04:42:47,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658462660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:47,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:47,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:42:47,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945170759] [2024-11-09 04:42:47,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:47,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:42:47,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:47,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:42:47,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:42:47,253 INFO L87 Difference]: Start difference. First operand 8898 states and 24648 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:49,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:49,883 INFO L93 Difference]: Finished difference Result 11486 states and 30898 transitions. [2024-11-09 04:42:49,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-09 04:42:49,883 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:49,921 INFO L225 Difference]: With dead ends: 11486 [2024-11-09 04:42:49,921 INFO L226 Difference]: Without dead ends: 11103 [2024-11-09 04:42:49,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=552, Invalid=1898, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 04:42:49,926 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 387 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:49,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 113 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 04:42:49,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11103 states. [2024-11-09 04:42:50,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11103 to 8904. [2024-11-09 04:42:50,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8904 states, 8895 states have (on average 2.7731309724564364) internal successors, (24667), 8903 states have internal predecessors, (24667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:50,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8904 states to 8904 states and 24667 transitions. [2024-11-09 04:42:50,106 INFO L78 Accepts]: Start accepts. Automaton has 8904 states and 24667 transitions. Word has length 70 [2024-11-09 04:42:50,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:50,107 INFO L471 AbstractCegarLoop]: Abstraction has 8904 states and 24667 transitions. [2024-11-09 04:42:50,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:50,107 INFO L276 IsEmpty]: Start isEmpty. Operand 8904 states and 24667 transitions. [2024-11-09 04:42:50,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:42:50,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:50,110 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:50,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2024-11-09 04:42:50,110 INFO L396 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:42:50,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash -362677088, now seen corresponding path program 21 times [2024-11-09 04:42:50,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:50,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036801187] [2024-11-09 04:42:50,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:50,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:50,718 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:50,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:50,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036801187] [2024-11-09 04:42:50,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036801187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:42:50,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023990785] [2024-11-09 04:42:50,718 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:42:50,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:42:50,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:42:50,720 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:42:50,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-09 04:42:51,179 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:42:51,179 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:42:51,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:42:51,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:51,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:51,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:42:51,577 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:51,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:51,843 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:42:51,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:42:51,914 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:51,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023990785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:42:51,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1950769519] [2024-11-09 04:42:51,915 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:42:51,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:42:51,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:42:51,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163475131] [2024-11-09 04:42:51,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:42:51,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:42:51,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:51,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:42:51,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:42:51,918 INFO L87 Difference]: Start difference. First operand 8904 states and 24667 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:56,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:56,443 INFO L93 Difference]: Finished difference Result 13162 states and 35301 transitions. [2024-11-09 04:42:56,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-09 04:42:56,444 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:56,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:56,495 INFO L225 Difference]: With dead ends: 13162 [2024-11-09 04:42:56,495 INFO L226 Difference]: Without dead ends: 12787 [2024-11-09 04:42:56,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=890, Invalid=3400, Unknown=0, NotChecked=0, Total=4290 [2024-11-09 04:42:56,501 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 588 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 3596 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 3623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:56,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 219 Invalid, 3623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3596 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 04:42:56,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12787 states. [2024-11-09 04:42:56,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12787 to 8902. [2024-11-09 04:42:56,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8902 states, 8893 states have (on average 2.7729675025300797) internal successors, (24660), 8901 states have internal predecessors, (24660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:56,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8902 states to 8902 states and 24660 transitions. [2024-11-09 04:42:56,731 INFO L78 Accepts]: Start accepts. Automaton has 8902 states and 24660 transitions. Word has length 70 [2024-11-09 04:42:56,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:56,731 INFO L471 AbstractCegarLoop]: Abstraction has 8902 states and 24660 transitions. [2024-11-09 04:42:56,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:56,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8902 states and 24660 transitions. [2024-11-09 04:42:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:42:56,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:56,735 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:56,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-09 04:42:56,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:42:56,936 INFO L396 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:42:56,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:56,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1949086908, now seen corresponding path program 22 times [2024-11-09 04:42:56,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:56,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548126166] [2024-11-09 04:42:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:56,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:42:57,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:57,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548126166] [2024-11-09 04:42:57,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548126166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:57,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:57,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:42:57,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909090987] [2024-11-09 04:42:57,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:57,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:42:57,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:57,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:42:57,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:42:57,652 INFO L87 Difference]: Start difference. First operand 8902 states and 24660 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:42:59,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:59,909 INFO L93 Difference]: Finished difference Result 11180 states and 30071 transitions. [2024-11-09 04:42:59,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-09 04:42:59,910 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:42:59,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:59,952 INFO L225 Difference]: With dead ends: 11180 [2024-11-09 04:42:59,952 INFO L226 Difference]: Without dead ends: 10781 [2024-11-09 04:42:59,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=421, Invalid=1471, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 04:42:59,957 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 383 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:59,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 133 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:42:59,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10781 states. [2024-11-09 04:43:00,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10781 to 8900. [2024-11-09 04:43:00,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8900 states, 8891 states have (on average 2.7728039590597233) internal successors, (24653), 8899 states have internal predecessors, (24653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:00,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8900 states to 8900 states and 24653 transitions. [2024-11-09 04:43:00,147 INFO L78 Accepts]: Start accepts. Automaton has 8900 states and 24653 transitions. Word has length 70 [2024-11-09 04:43:00,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:00,147 INFO L471 AbstractCegarLoop]: Abstraction has 8900 states and 24653 transitions. [2024-11-09 04:43:00,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:00,147 INFO L276 IsEmpty]: Start isEmpty. Operand 8900 states and 24653 transitions. [2024-11-09 04:43:00,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:43:00,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:00,151 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:00,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2024-11-09 04:43:00,151 INFO L396 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:43:00,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:00,152 INFO L85 PathProgramCache]: Analyzing trace with hash -438654942, now seen corresponding path program 23 times [2024-11-09 04:43:00,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:00,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388457983] [2024-11-09 04:43:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:00,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:43:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:00,844 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:00,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:43:00,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388457983] [2024-11-09 04:43:00,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388457983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:43:00,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:43:00,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:43:00,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24157495] [2024-11-09 04:43:00,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:43:00,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:43:00,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:43:00,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:43:00,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:43:00,845 INFO L87 Difference]: Start difference. First operand 8900 states and 24653 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:03,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:03,038 INFO L93 Difference]: Finished difference Result 11026 states and 29796 transitions. [2024-11-09 04:43:03,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-09 04:43:03,038 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:43:03,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:03,080 INFO L225 Difference]: With dead ends: 11026 [2024-11-09 04:43:03,080 INFO L226 Difference]: Without dead ends: 10643 [2024-11-09 04:43:03,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=346, Invalid=1294, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 04:43:03,084 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 300 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:03,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 103 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:43:03,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10643 states. [2024-11-09 04:43:03,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10643 to 8904. [2024-11-09 04:43:03,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8904 states, 8895 states have (on average 2.7731309724564364) internal successors, (24667), 8903 states have internal predecessors, (24667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:03,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8904 states to 8904 states and 24667 transitions. [2024-11-09 04:43:03,277 INFO L78 Accepts]: Start accepts. Automaton has 8904 states and 24667 transitions. Word has length 70 [2024-11-09 04:43:03,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:03,277 INFO L471 AbstractCegarLoop]: Abstraction has 8904 states and 24667 transitions. [2024-11-09 04:43:03,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:03,277 INFO L276 IsEmpty]: Start isEmpty. Operand 8904 states and 24667 transitions. [2024-11-09 04:43:03,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:43:03,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:03,281 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:03,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2024-11-09 04:43:03,281 INFO L396 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:43:03,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:03,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1643282978, now seen corresponding path program 24 times [2024-11-09 04:43:03,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:03,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259232781] [2024-11-09 04:43:03,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:03,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:43:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:03,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:43:03,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259232781] [2024-11-09 04:43:03,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259232781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:43:03,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152246351] [2024-11-09 04:43:03,989 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:43:03,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:43:03,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:43:03,990 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:43:03,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-09 04:43:04,483 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:43:04,483 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:43:04,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:43:04,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:43:04,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:04,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:43:04,881 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:04,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:43:05,158 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:43:05,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:43:05,233 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:05,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152246351] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:43:05,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [313530477] [2024-11-09 04:43:05,234 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:43:05,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:43:05,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:43:05,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031996930] [2024-11-09 04:43:05,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:43:05,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:43:05,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:43:05,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:43:05,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=734, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:43:05,236 INFO L87 Difference]: Start difference. First operand 8904 states and 24667 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:10,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:10,285 INFO L93 Difference]: Finished difference Result 12541 states and 33661 transitions. [2024-11-09 04:43:10,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 04:43:10,285 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:43:10,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:10,327 INFO L225 Difference]: With dead ends: 12541 [2024-11-09 04:43:10,327 INFO L226 Difference]: Without dead ends: 12166 [2024-11-09 04:43:10,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1170 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=774, Invalid=3782, Unknown=0, NotChecked=0, Total=4556 [2024-11-09 04:43:10,332 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 599 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 3819 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 3845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:10,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 228 Invalid, 3845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3819 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 04:43:10,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12166 states. [2024-11-09 04:43:10,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12166 to 8902. [2024-11-09 04:43:10,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8902 states, 8893 states have (on average 2.7729675025300797) internal successors, (24660), 8901 states have internal predecessors, (24660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:10,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8902 states to 8902 states and 24660 transitions. [2024-11-09 04:43:10,538 INFO L78 Accepts]: Start accepts. Automaton has 8902 states and 24660 transitions. Word has length 70 [2024-11-09 04:43:10,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:10,538 INFO L471 AbstractCegarLoop]: Abstraction has 8902 states and 24660 transitions. [2024-11-09 04:43:10,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:10,538 INFO L276 IsEmpty]: Start isEmpty. Operand 8902 states and 24660 transitions. [2024-11-09 04:43:10,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:43:10,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:10,542 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:10,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-11-09 04:43:10,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable232 [2024-11-09 04:43:10,742 INFO L396 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:43:10,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:10,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1727681752, now seen corresponding path program 25 times [2024-11-09 04:43:10,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:10,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474143979] [2024-11-09 04:43:10,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:10,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:43:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:11,514 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:11,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:43:11,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474143979] [2024-11-09 04:43:11,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474143979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:43:11,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008676863] [2024-11-09 04:43:11,515 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:43:11,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:43:11,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:43:11,516 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:43:11,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-09 04:43:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:12,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:43:12,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:43:12,365 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:12,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2024-11-09 04:43:12,392 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:12,393 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:43:14,724 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:43:14,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:43:14,795 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:14,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008676863] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:43:14,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1492665899] [2024-11-09 04:43:14,796 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:43:14,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:43:14,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:43:14,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716815641] [2024-11-09 04:43:14,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:43:14,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:43:14,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:43:14,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:43:14,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=729, Unknown=1, NotChecked=0, Total=870 [2024-11-09 04:43:14,798 INFO L87 Difference]: Start difference. First operand 8902 states and 24660 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:19,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:19,156 INFO L93 Difference]: Finished difference Result 11298 states and 30547 transitions. [2024-11-09 04:43:19,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-09 04:43:19,157 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:43:19,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:19,203 INFO L225 Difference]: With dead ends: 11298 [2024-11-09 04:43:19,203 INFO L226 Difference]: Without dead ends: 10923 [2024-11-09 04:43:19,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=594, Invalid=2597, Unknown=1, NotChecked=0, Total=3192 [2024-11-09 04:43:19,209 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 459 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 3585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:19,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 218 Invalid, 3585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3576 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 04:43:19,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10923 states. [2024-11-09 04:43:19,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10923 to 8896. [2024-11-09 04:43:19,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8896 states, 8887 states have (on average 2.7729267469337233) internal successors, (24643), 8895 states have internal predecessors, (24643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:19,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8896 states to 8896 states and 24643 transitions. [2024-11-09 04:43:19,417 INFO L78 Accepts]: Start accepts. Automaton has 8896 states and 24643 transitions. Word has length 70 [2024-11-09 04:43:19,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:19,417 INFO L471 AbstractCegarLoop]: Abstraction has 8896 states and 24643 transitions. [2024-11-09 04:43:19,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:19,417 INFO L276 IsEmpty]: Start isEmpty. Operand 8896 states and 24643 transitions. [2024-11-09 04:43:19,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:43:19,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:19,422 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:19,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-09 04:43:19,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable233 [2024-11-09 04:43:19,622 INFO L396 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:43:19,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:19,623 INFO L85 PathProgramCache]: Analyzing trace with hash 563743342, now seen corresponding path program 26 times [2024-11-09 04:43:19,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:19,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847385775] [2024-11-09 04:43:19,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:19,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:43:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:20,349 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:20,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:43:20,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847385775] [2024-11-09 04:43:20,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847385775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:43:20,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:43:20,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:43:20,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211066812] [2024-11-09 04:43:20,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:43:20,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:43:20,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:43:20,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:43:20,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:43:20,350 INFO L87 Difference]: Start difference. First operand 8896 states and 24643 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:23,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:23,428 INFO L93 Difference]: Finished difference Result 11428 states and 30749 transitions. [2024-11-09 04:43:23,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-09 04:43:23,429 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:43:23,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:23,475 INFO L225 Difference]: With dead ends: 11428 [2024-11-09 04:43:23,475 INFO L226 Difference]: Without dead ends: 11045 [2024-11-09 04:43:23,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=514, Invalid=1742, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 04:43:23,480 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 391 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:23,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 143 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1942 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 04:43:23,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2024-11-09 04:43:23,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 8908. [2024-11-09 04:43:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8908 states, 8899 states have (on average 2.7730082031688954) internal successors, (24677), 8907 states have internal predecessors, (24677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:23,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8908 states to 8908 states and 24677 transitions. [2024-11-09 04:43:23,693 INFO L78 Accepts]: Start accepts. Automaton has 8908 states and 24677 transitions. Word has length 70 [2024-11-09 04:43:23,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:23,693 INFO L471 AbstractCegarLoop]: Abstraction has 8908 states and 24677 transitions. [2024-11-09 04:43:23,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 8908 states and 24677 transitions. [2024-11-09 04:43:23,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:43:23,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:23,697 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:23,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2024-11-09 04:43:23,697 INFO L396 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:43:23,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:23,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1649286034, now seen corresponding path program 27 times [2024-11-09 04:43:23,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:23,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680715083] [2024-11-09 04:43:23,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:23,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:43:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:24,446 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:24,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:43:24,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680715083] [2024-11-09 04:43:24,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680715083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:43:24,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985424367] [2024-11-09 04:43:24,446 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:43:24,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:43:24,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:43:24,448 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:43:24,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-09 04:43:24,971 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:43:24,971 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:43:24,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:43:24,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:43:25,252 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:25,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:43:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:25,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:43:25,724 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:43:25,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:43:25,803 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:25,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985424367] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:43:25,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [342194575] [2024-11-09 04:43:25,804 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:43:25,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:43:25,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:43:25,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068962652] [2024-11-09 04:43:25,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:43:25,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:43:25,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:43:25,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:43:25,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:43:25,806 INFO L87 Difference]: Start difference. First operand 8908 states and 24677 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:30,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:30,606 INFO L93 Difference]: Finished difference Result 13112 states and 35172 transitions. [2024-11-09 04:43:30,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 04:43:30,606 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:43:30,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:30,656 INFO L225 Difference]: With dead ends: 13112 [2024-11-09 04:43:30,656 INFO L226 Difference]: Without dead ends: 12737 [2024-11-09 04:43:30,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=881, Invalid=3675, Unknown=0, NotChecked=0, Total=4556 [2024-11-09 04:43:30,662 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 708 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 3897 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 3897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:30,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 276 Invalid, 3928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 3897 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 04:43:30,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12737 states. [2024-11-09 04:43:30,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12737 to 8906. [2024-11-09 04:43:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8906 states, 8897 states have (on average 2.7728447791390356) internal successors, (24670), 8905 states have internal predecessors, (24670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:30,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8906 states to 8906 states and 24670 transitions. [2024-11-09 04:43:30,866 INFO L78 Accepts]: Start accepts. Automaton has 8906 states and 24670 transitions. Word has length 70 [2024-11-09 04:43:30,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:30,867 INFO L471 AbstractCegarLoop]: Abstraction has 8906 states and 24670 transitions. [2024-11-09 04:43:30,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:30,867 INFO L276 IsEmpty]: Start isEmpty. Operand 8906 states and 24670 transitions. [2024-11-09 04:43:30,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:43:30,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:30,871 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:30,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-09 04:43:31,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable235 [2024-11-09 04:43:31,071 INFO L396 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:43:31,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:31,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1059271442, now seen corresponding path program 28 times [2024-11-09 04:43:31,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:31,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55724659] [2024-11-09 04:43:31,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:31,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:43:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:31,827 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:31,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:43:31,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55724659] [2024-11-09 04:43:31,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55724659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:43:31,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:43:31,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:43:31,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502032280] [2024-11-09 04:43:31,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:43:31,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:43:31,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:43:31,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:43:31,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:43:31,829 INFO L87 Difference]: Start difference. First operand 8906 states and 24670 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:34,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:34,424 INFO L93 Difference]: Finished difference Result 11108 states and 29891 transitions. [2024-11-09 04:43:34,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-09 04:43:34,425 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:43:34,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:34,469 INFO L225 Difference]: With dead ends: 11108 [2024-11-09 04:43:34,469 INFO L226 Difference]: Without dead ends: 10709 [2024-11-09 04:43:34,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=380, Invalid=1342, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:43:34,475 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 351 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:34,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 155 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 04:43:34,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10709 states. [2024-11-09 04:43:34,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10709 to 8904. [2024-11-09 04:43:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8904 states, 8895 states have (on average 2.772681281618887) internal successors, (24663), 8903 states have internal predecessors, (24663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8904 states to 8904 states and 24663 transitions. [2024-11-09 04:43:34,686 INFO L78 Accepts]: Start accepts. Automaton has 8904 states and 24663 transitions. Word has length 70 [2024-11-09 04:43:34,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:34,687 INFO L471 AbstractCegarLoop]: Abstraction has 8904 states and 24663 transitions. [2024-11-09 04:43:34,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:34,687 INFO L276 IsEmpty]: Start isEmpty. Operand 8904 states and 24663 transitions. [2024-11-09 04:43:34,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:43:34,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:34,691 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:34,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2024-11-09 04:43:34,691 INFO L396 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:43:34,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:34,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1725263888, now seen corresponding path program 29 times [2024-11-09 04:43:34,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:34,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425920415] [2024-11-09 04:43:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:34,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:43:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:35,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:43:35,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425920415] [2024-11-09 04:43:35,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425920415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:43:35,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:43:35,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:43:35,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299399192] [2024-11-09 04:43:35,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:43:35,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:43:35,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:43:35,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:43:35,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:43:35,454 INFO L87 Difference]: Start difference. First operand 8904 states and 24663 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:37,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:37,503 INFO L93 Difference]: Finished difference Result 10954 states and 29616 transitions. [2024-11-09 04:43:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 04:43:37,503 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:43:37,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:37,551 INFO L225 Difference]: With dead ends: 10954 [2024-11-09 04:43:37,551 INFO L226 Difference]: Without dead ends: 10571 [2024-11-09 04:43:37,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 04:43:37,557 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 314 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:37,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 106 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:43:37,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10571 states. [2024-11-09 04:43:37,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10571 to 8908. [2024-11-09 04:43:37,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8908 states, 8899 states have (on average 2.7730082031688954) internal successors, (24677), 8907 states have internal predecessors, (24677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:37,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8908 states to 8908 states and 24677 transitions. [2024-11-09 04:43:37,763 INFO L78 Accepts]: Start accepts. Automaton has 8908 states and 24677 transitions. Word has length 70 [2024-11-09 04:43:37,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:37,763 INFO L471 AbstractCegarLoop]: Abstraction has 8908 states and 24677 transitions. [2024-11-09 04:43:37,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:37,763 INFO L276 IsEmpty]: Start isEmpty. Operand 8908 states and 24677 transitions. [2024-11-09 04:43:37,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:43:37,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:37,767 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:37,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2024-11-09 04:43:37,768 INFO L396 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:43:37,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:37,768 INFO L85 PathProgramCache]: Analyzing trace with hash 356674032, now seen corresponding path program 30 times [2024-11-09 04:43:37,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:37,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752099905] [2024-11-09 04:43:37,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:37,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:43:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:38,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:43:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752099905] [2024-11-09 04:43:38,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752099905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:43:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585092894] [2024-11-09 04:43:38,591 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:43:38,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:43:38,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:43:38,593 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:43:38,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-09 04:43:39,130 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:43:39,131 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:43:39,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:43:39,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:43:39,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:39,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:43:39,585 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:39,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:43:40,475 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:43:40,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:43:40,554 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:40,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585092894] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:43:40,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [787878043] [2024-11-09 04:43:40,555 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:43:40,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:43:40,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:43:40,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130388463] [2024-11-09 04:43:40,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:43:40,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:43:40,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:43:40,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:43:40,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:43:40,556 INFO L87 Difference]: Start difference. First operand 8908 states and 24677 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:46,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:46,707 INFO L93 Difference]: Finished difference Result 12556 states and 33682 transitions. [2024-11-09 04:43:46,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 04:43:46,708 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:43:46,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:46,755 INFO L225 Difference]: With dead ends: 12556 [2024-11-09 04:43:46,755 INFO L226 Difference]: Without dead ends: 12181 [2024-11-09 04:43:46,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1107 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=828, Invalid=4142, Unknown=0, NotChecked=0, Total=4970 [2024-11-09 04:43:46,761 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 634 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 4010 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 4038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:46,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 270 Invalid, 4038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4010 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 04:43:46,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12181 states. [2024-11-09 04:43:46,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12181 to 8906. [2024-11-09 04:43:46,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8906 states, 8897 states have (on average 2.7728447791390356) internal successors, (24670), 8905 states have internal predecessors, (24670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:46,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8906 states to 8906 states and 24670 transitions. [2024-11-09 04:43:46,980 INFO L78 Accepts]: Start accepts. Automaton has 8906 states and 24670 transitions. Word has length 70 [2024-11-09 04:43:46,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:46,981 INFO L471 AbstractCegarLoop]: Abstraction has 8906 states and 24670 transitions. [2024-11-09 04:43:46,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:46,981 INFO L276 IsEmpty]: Start isEmpty. Operand 8906 states and 24670 transitions. [2024-11-09 04:43:46,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:43:46,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:46,985 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:47,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-11-09 04:43:47,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:43:47,186 INFO L396 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:43:47,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:47,186 INFO L85 PathProgramCache]: Analyzing trace with hash 441072806, now seen corresponding path program 31 times [2024-11-09 04:43:47,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:47,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729133628] [2024-11-09 04:43:47,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:47,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:43:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:48,016 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:48,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:43:48,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729133628] [2024-11-09 04:43:48,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729133628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:43:48,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816336566] [2024-11-09 04:43:48,017 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:43:48,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:43:48,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:43:48,019 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:43:48,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-09 04:43:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:48,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:43:48,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:43:48,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:48,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2024-11-09 04:43:49,000 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:49,000 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:43:51,298 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:43:51,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:43:51,369 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:51,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816336566] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:43:51,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [331597952] [2024-11-09 04:43:51,369 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:43:51,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:43:51,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:43:51,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906441112] [2024-11-09 04:43:51,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:43:51,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:43:51,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:43:51,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:43:51,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=737, Unknown=1, NotChecked=0, Total=870 [2024-11-09 04:43:51,371 INFO L87 Difference]: Start difference. First operand 8906 states and 24670 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:56,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:56,038 INFO L93 Difference]: Finished difference Result 11244 states and 30412 transitions. [2024-11-09 04:43:56,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 04:43:56,039 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:43:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:56,084 INFO L225 Difference]: With dead ends: 11244 [2024-11-09 04:43:56,085 INFO L226 Difference]: Without dead ends: 10869 [2024-11-09 04:43:56,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 779 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=604, Invalid=2817, Unknown=1, NotChecked=0, Total=3422 [2024-11-09 04:43:56,090 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 589 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 3061 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:56,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 201 Invalid, 3074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3061 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 04:43:56,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10869 states. [2024-11-09 04:43:56,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10869 to 8902. [2024-11-09 04:43:56,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8902 states, 8893 states have (on average 2.7727426065444734) internal successors, (24658), 8901 states have internal predecessors, (24658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:56,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8902 states to 8902 states and 24658 transitions. [2024-11-09 04:43:56,297 INFO L78 Accepts]: Start accepts. Automaton has 8902 states and 24658 transitions. Word has length 70 [2024-11-09 04:43:56,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:56,298 INFO L471 AbstractCegarLoop]: Abstraction has 8902 states and 24658 transitions. [2024-11-09 04:43:56,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:56,298 INFO L276 IsEmpty]: Start isEmpty. Operand 8902 states and 24658 transitions. [2024-11-09 04:43:56,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:43:56,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:56,302 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:56,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-09 04:43:56,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable239 [2024-11-09 04:43:56,503 INFO L396 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:43:56,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:56,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1636898952, now seen corresponding path program 32 times [2024-11-09 04:43:56,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:56,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836910083] [2024-11-09 04:43:56,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:56,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:43:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:57,258 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:43:57,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:43:57,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836910083] [2024-11-09 04:43:57,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836910083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:43:57,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:43:57,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:43:57,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210178070] [2024-11-09 04:43:57,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:43:57,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:43:57,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:43:57,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:43:57,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:43:57,260 INFO L87 Difference]: Start difference. First operand 8902 states and 24658 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:59,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:59,625 INFO L93 Difference]: Finished difference Result 10962 states and 29640 transitions. [2024-11-09 04:43:59,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 04:43:59,626 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:43:59,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:59,672 INFO L225 Difference]: With dead ends: 10962 [2024-11-09 04:43:59,672 INFO L226 Difference]: Without dead ends: 10579 [2024-11-09 04:43:59,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=316, Invalid=1244, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 04:43:59,677 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 326 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:59,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 142 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 04:43:59,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2024-11-09 04:43:59,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 8912. [2024-11-09 04:43:59,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8912 states, 8903 states have (on average 2.773559474334494) internal successors, (24693), 8911 states have internal predecessors, (24693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:59,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8912 states to 8912 states and 24693 transitions. [2024-11-09 04:43:59,880 INFO L78 Accepts]: Start accepts. Automaton has 8912 states and 24693 transitions. Word has length 70 [2024-11-09 04:43:59,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:59,880 INFO L471 AbstractCegarLoop]: Abstraction has 8912 states and 24693 transitions. [2024-11-09 04:43:59,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:43:59,880 INFO L276 IsEmpty]: Start isEmpty. Operand 8912 states and 24693 transitions. [2024-11-09 04:43:59,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:43:59,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:59,884 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:59,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2024-11-09 04:43:59,885 INFO L396 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:43:59,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:59,885 INFO L85 PathProgramCache]: Analyzing trace with hash -576130424, now seen corresponding path program 33 times [2024-11-09 04:43:59,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:59,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954626324] [2024-11-09 04:43:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:59,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:43:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:00,629 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:00,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:00,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954626324] [2024-11-09 04:44:00,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954626324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:44:00,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225476806] [2024-11-09 04:44:00,630 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:44:00,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:44:00,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:44:00,631 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:44:00,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-09 04:44:01,049 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:44:01,049 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:44:01,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:44:01,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:44:01,385 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:44:01,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 58 [2024-11-09 04:44:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:01,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:44:04,196 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:44:04,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:44:04,280 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:04,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225476806] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:44:04,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [587210981] [2024-11-09 04:44:04,281 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:44:04,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:44:04,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:44:04,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105767278] [2024-11-09 04:44:04,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:44:04,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:44:04,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:04,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:44:04,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=739, Unknown=1, NotChecked=0, Total=870 [2024-11-09 04:44:04,283 INFO L87 Difference]: Start difference. First operand 8912 states and 24693 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:09,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:09,464 INFO L93 Difference]: Finished difference Result 12770 states and 34216 transitions. [2024-11-09 04:44:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 04:44:09,465 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:44:09,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:09,535 INFO L225 Difference]: With dead ends: 12770 [2024-11-09 04:44:09,535 INFO L226 Difference]: Without dead ends: 12395 [2024-11-09 04:44:09,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1172 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=791, Invalid=3900, Unknown=1, NotChecked=0, Total=4692 [2024-11-09 04:44:09,544 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 881 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 3087 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 3121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 3087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:44:09,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 245 Invalid, 3121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 3087 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 04:44:09,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12395 states. [2024-11-09 04:44:09,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12395 to 8910. [2024-11-09 04:44:09,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8910 states, 8901 states have (on average 2.7733962476126277) internal successors, (24686), 8909 states have internal predecessors, (24686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:09,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8910 states to 8910 states and 24686 transitions. [2024-11-09 04:44:09,809 INFO L78 Accepts]: Start accepts. Automaton has 8910 states and 24686 transitions. Word has length 70 [2024-11-09 04:44:09,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:09,809 INFO L471 AbstractCegarLoop]: Abstraction has 8910 states and 24686 transitions. [2024-11-09 04:44:09,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:09,810 INFO L276 IsEmpty]: Start isEmpty. Operand 8910 states and 24686 transitions. [2024-11-09 04:44:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:44:09,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:09,814 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:09,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-09 04:44:10,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:44:10,014 INFO L396 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:44:10,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:10,015 INFO L85 PathProgramCache]: Analyzing trace with hash -491731650, now seen corresponding path program 34 times [2024-11-09 04:44:10,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:10,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370835787] [2024-11-09 04:44:10,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:10,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:10,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:10,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370835787] [2024-11-09 04:44:10,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370835787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:44:10,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71994580] [2024-11-09 04:44:10,770 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:44:10,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:44:10,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:44:10,771 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:44:10,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-09 04:44:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:11,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:44:11,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:44:11,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:44:11,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2024-11-09 04:44:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:11,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:44:12,608 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:44:12,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:44:12,706 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:12,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71994580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:44:12,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2095810580] [2024-11-09 04:44:12,707 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:44:12,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:44:12,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:44:12,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031136303] [2024-11-09 04:44:12,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:44:12,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:44:12,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:12,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:44:12,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:44:12,709 INFO L87 Difference]: Start difference. First operand 8910 states and 24686 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:17,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:17,567 INFO L93 Difference]: Finished difference Result 11647 states and 31448 transitions. [2024-11-09 04:44:17,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 04:44:17,567 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:44:17,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:17,614 INFO L225 Difference]: With dead ends: 11647 [2024-11-09 04:44:17,614 INFO L226 Difference]: Without dead ends: 11272 [2024-11-09 04:44:17,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=739, Invalid=4091, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 04:44:17,619 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 725 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 3482 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 3499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:44:17,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 307 Invalid, 3499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3482 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 04:44:17,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11272 states. [2024-11-09 04:44:17,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11272 to 8908. [2024-11-09 04:44:17,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8908 states, 8899 states have (on average 2.7732329475221933) internal successors, (24679), 8907 states have internal predecessors, (24679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:17,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8908 states to 8908 states and 24679 transitions. [2024-11-09 04:44:17,827 INFO L78 Accepts]: Start accepts. Automaton has 8908 states and 24679 transitions. Word has length 70 [2024-11-09 04:44:17,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:17,827 INFO L471 AbstractCegarLoop]: Abstraction has 8908 states and 24679 transitions. [2024-11-09 04:44:17,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:17,827 INFO L276 IsEmpty]: Start isEmpty. Operand 8908 states and 24679 transitions. [2024-11-09 04:44:17,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:44:17,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:17,831 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:17,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-11-09 04:44:18,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:44:18,032 INFO L396 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:44:18,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:18,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1712535506, now seen corresponding path program 35 times [2024-11-09 04:44:18,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:18,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954268218] [2024-11-09 04:44:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:18,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:18,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:18,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954268218] [2024-11-09 04:44:18,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954268218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:44:18,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728420984] [2024-11-09 04:44:18,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:44:18,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:44:18,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:44:18,987 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:44:18,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-09 04:44:19,440 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:44:19,440 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:44:19,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:44:19,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:44:19,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:44:19,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 18 [2024-11-09 04:44:19,907 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:19,907 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:44:20,152 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-11-09 04:44:20,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 57 [2024-11-09 04:44:20,275 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:20,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728420984] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:44:20,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [874823117] [2024-11-09 04:44:20,276 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:44:20,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:44:20,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 32 [2024-11-09 04:44:20,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016534510] [2024-11-09 04:44:20,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:44:20,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 04:44:20,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:20,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 04:44:20,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=847, Unknown=0, NotChecked=0, Total=992 [2024-11-09 04:44:20,278 INFO L87 Difference]: Start difference. First operand 8908 states and 24679 transitions. Second operand has 32 states, 32 states have (on average 3.34375) internal successors, (107), 32 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:25,128 INFO L93 Difference]: Finished difference Result 12360 states and 33337 transitions. [2024-11-09 04:44:25,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 04:44:25,128 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.34375) internal successors, (107), 32 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:44:25,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:25,178 INFO L225 Difference]: With dead ends: 12360 [2024-11-09 04:44:25,178 INFO L226 Difference]: Without dead ends: 11985 [2024-11-09 04:44:25,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=614, Invalid=3046, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 04:44:25,184 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 729 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 3727 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 3741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:44:25,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 333 Invalid, 3741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3727 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-09 04:44:25,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11985 states. [2024-11-09 04:44:25,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11985 to 9175. [2024-11-09 04:44:25,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9175 states, 9166 states have (on average 2.7716561204451233) internal successors, (25405), 9174 states have internal predecessors, (25405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:25,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9175 states to 9175 states and 25405 transitions. [2024-11-09 04:44:25,405 INFO L78 Accepts]: Start accepts. Automaton has 9175 states and 25405 transitions. Word has length 70 [2024-11-09 04:44:25,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:25,406 INFO L471 AbstractCegarLoop]: Abstraction has 9175 states and 25405 transitions. [2024-11-09 04:44:25,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.34375) internal successors, (107), 32 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:25,406 INFO L276 IsEmpty]: Start isEmpty. Operand 9175 states and 25405 transitions. [2024-11-09 04:44:25,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:44:25,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:25,410 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:25,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-11-09 04:44:25,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:44:25,610 INFO L396 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:44:25,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash -244149610, now seen corresponding path program 36 times [2024-11-09 04:44:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:25,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864741584] [2024-11-09 04:44:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:25,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:26,333 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:26,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:26,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864741584] [2024-11-09 04:44:26,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864741584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:44:26,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:44:26,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:44:26,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105507857] [2024-11-09 04:44:26,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:44:26,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:44:26,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:26,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:44:26,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:44:26,335 INFO L87 Difference]: Start difference. First operand 9175 states and 25405 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:28,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:28,341 INFO L93 Difference]: Finished difference Result 11355 states and 30480 transitions. [2024-11-09 04:44:28,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 04:44:28,341 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:44:28,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:28,381 INFO L225 Difference]: With dead ends: 11355 [2024-11-09 04:44:28,381 INFO L226 Difference]: Without dead ends: 10821 [2024-11-09 04:44:28,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=351, Invalid=1371, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:44:28,385 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 316 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:44:28,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 177 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1532 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 04:44:28,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10821 states. [2024-11-09 04:44:28,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10821 to 9183. [2024-11-09 04:44:28,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9183 states, 9174 states have (on average 2.7707652060170047) internal successors, (25419), 9182 states have internal predecessors, (25419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9183 states to 9183 states and 25419 transitions. [2024-11-09 04:44:28,564 INFO L78 Accepts]: Start accepts. Automaton has 9183 states and 25419 transitions. Word has length 70 [2024-11-09 04:44:28,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:28,565 INFO L471 AbstractCegarLoop]: Abstraction has 9183 states and 25419 transitions. [2024-11-09 04:44:28,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:28,565 INFO L276 IsEmpty]: Start isEmpty. Operand 9183 states and 25419 transitions. [2024-11-09 04:44:28,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:44:28,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:28,569 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:28,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2024-11-09 04:44:28,569 INFO L396 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:44:28,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:28,569 INFO L85 PathProgramCache]: Analyzing trace with hash 36538668, now seen corresponding path program 37 times [2024-11-09 04:44:28,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:28,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043097624] [2024-11-09 04:44:28,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:28,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:29,201 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:29,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:29,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043097624] [2024-11-09 04:44:29,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043097624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:44:29,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:44:29,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:44:29,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160358276] [2024-11-09 04:44:29,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:44:29,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:44:29,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:29,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:44:29,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:44:29,203 INFO L87 Difference]: Start difference. First operand 9183 states and 25419 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:31,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:31,456 INFO L93 Difference]: Finished difference Result 11231 states and 30199 transitions. [2024-11-09 04:44:31,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 04:44:31,456 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:44:31,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:31,499 INFO L225 Difference]: With dead ends: 11231 [2024-11-09 04:44:31,499 INFO L226 Difference]: Without dead ends: 10814 [2024-11-09 04:44:31,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=379, Invalid=1261, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 04:44:31,504 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 307 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:44:31,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 165 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:44:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2024-11-09 04:44:31,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 9189. [2024-11-09 04:44:31,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9189 states, 9180 states have (on average 2.7712418300653594) internal successors, (25440), 9188 states have internal predecessors, (25440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:31,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9189 states to 9189 states and 25440 transitions. [2024-11-09 04:44:31,700 INFO L78 Accepts]: Start accepts. Automaton has 9189 states and 25440 transitions. Word has length 70 [2024-11-09 04:44:31,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:31,700 INFO L471 AbstractCegarLoop]: Abstraction has 9189 states and 25440 transitions. [2024-11-09 04:44:31,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 9189 states and 25440 transitions. [2024-11-09 04:44:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:44:31,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:31,705 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:31,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2024-11-09 04:44:31,705 INFO L396 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:44:31,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:31,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1234657874, now seen corresponding path program 38 times [2024-11-09 04:44:31,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:31,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812031786] [2024-11-09 04:44:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:31,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:32,415 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:32,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:32,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812031786] [2024-11-09 04:44:32,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812031786] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:44:32,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710852349] [2024-11-09 04:44:32,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:44:32,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:44:32,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:44:32,417 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:44:32,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-09 04:44:32,912 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:44:32,912 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:44:32,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 04:44:32,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:44:33,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:44:33,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 21 [2024-11-09 04:44:33,604 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:33,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:44:34,101 INFO L349 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2024-11-09 04:44:34,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 49 [2024-11-09 04:44:34,203 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:34,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710852349] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:44:34,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:44:34,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15, 12] total 34 [2024-11-09 04:44:34,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379464655] [2024-11-09 04:44:34,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:44:34,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:44:34,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:34,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:44:34,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=995, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 04:44:34,205 INFO L87 Difference]: Start difference. First operand 9189 states and 25440 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:36,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:36,395 INFO L93 Difference]: Finished difference Result 11229 states and 30340 transitions. [2024-11-09 04:44:36,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 04:44:36,395 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:44:36,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:36,443 INFO L225 Difference]: With dead ends: 11229 [2024-11-09 04:44:36,443 INFO L226 Difference]: Without dead ends: 10821 [2024-11-09 04:44:36,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=254, Invalid=1908, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 04:44:36,448 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 270 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:44:36,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 192 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:44:36,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10821 states. [2024-11-09 04:44:36,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10821 to 9187. [2024-11-09 04:44:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9187 states, 9178 states have (on average 2.771083024624101) internal successors, (25433), 9186 states have internal predecessors, (25433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9187 states to 9187 states and 25433 transitions. [2024-11-09 04:44:36,657 INFO L78 Accepts]: Start accepts. Automaton has 9187 states and 25433 transitions. Word has length 70 [2024-11-09 04:44:36,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:36,658 INFO L471 AbstractCegarLoop]: Abstraction has 9187 states and 25433 transitions. [2024-11-09 04:44:36,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:36,658 INFO L276 IsEmpty]: Start isEmpty. Operand 9187 states and 25433 transitions. [2024-11-09 04:44:36,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:44:36,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:36,662 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:36,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-11-09 04:44:36,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable246 [2024-11-09 04:44:36,863 INFO L396 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:44:36,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:36,863 INFO L85 PathProgramCache]: Analyzing trace with hash -927655422, now seen corresponding path program 39 times [2024-11-09 04:44:36,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:36,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231337061] [2024-11-09 04:44:36,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:36,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:37,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:37,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231337061] [2024-11-09 04:44:37,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231337061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:44:37,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:44:37,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:44:37,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339314783] [2024-11-09 04:44:37,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:44:37,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:44:37,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:37,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:44:37,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:44:37,571 INFO L87 Difference]: Start difference. First operand 9187 states and 25433 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:40,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:40,001 INFO L93 Difference]: Finished difference Result 11480 states and 30804 transitions. [2024-11-09 04:44:40,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 04:44:40,002 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:44:40,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:40,048 INFO L225 Difference]: With dead ends: 11480 [2024-11-09 04:44:40,048 INFO L226 Difference]: Without dead ends: 11052 [2024-11-09 04:44:40,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=326, Invalid=1234, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 04:44:40,053 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 298 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:44:40,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 209 Invalid, 1873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 04:44:40,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11052 states. [2024-11-09 04:44:40,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11052 to 9185. [2024-11-09 04:44:40,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9185 states, 9176 states have (on average 2.770924149956408) internal successors, (25426), 9184 states have internal predecessors, (25426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:40,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9185 states to 9185 states and 25426 transitions. [2024-11-09 04:44:40,260 INFO L78 Accepts]: Start accepts. Automaton has 9185 states and 25426 transitions. Word has length 70 [2024-11-09 04:44:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:40,260 INFO L471 AbstractCegarLoop]: Abstraction has 9185 states and 25426 transitions. [2024-11-09 04:44:40,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand 9185 states and 25426 transitions. [2024-11-09 04:44:40,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:44:40,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:40,265 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:40,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2024-11-09 04:44:40,265 INFO L396 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:44:40,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:40,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1210702586, now seen corresponding path program 40 times [2024-11-09 04:44:40,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:40,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215180118] [2024-11-09 04:44:40,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:40,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:40,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:40,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215180118] [2024-11-09 04:44:40,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215180118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:44:40,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:44:40,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:44:40,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377571149] [2024-11-09 04:44:40,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:44:40,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:44:40,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:40,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:44:40,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:44:40,981 INFO L87 Difference]: Start difference. First operand 9185 states and 25426 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:42,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:42,935 INFO L93 Difference]: Finished difference Result 11321 states and 30424 transitions. [2024-11-09 04:44:42,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 04:44:42,935 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:44:42,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:42,983 INFO L225 Difference]: With dead ends: 11321 [2024-11-09 04:44:42,983 INFO L226 Difference]: Without dead ends: 10882 [2024-11-09 04:44:42,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=259, Invalid=1001, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:44:42,988 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 285 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:44:42,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 191 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:44:42,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2024-11-09 04:44:43,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 9177. [2024-11-09 04:44:43,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9177 states, 9168 states have (on average 2.770942408376963) internal successors, (25404), 9176 states have internal predecessors, (25404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:43,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9177 states to 9177 states and 25404 transitions. [2024-11-09 04:44:43,192 INFO L78 Accepts]: Start accepts. Automaton has 9177 states and 25404 transitions. Word has length 70 [2024-11-09 04:44:43,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:43,192 INFO L471 AbstractCegarLoop]: Abstraction has 9177 states and 25404 transitions. [2024-11-09 04:44:43,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:43,192 INFO L276 IsEmpty]: Start isEmpty. Operand 9177 states and 25404 transitions. [2024-11-09 04:44:43,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:44:43,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:43,196 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:43,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2024-11-09 04:44:43,196 INFO L396 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:44:43,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:43,196 INFO L85 PathProgramCache]: Analyzing trace with hash -570841796, now seen corresponding path program 41 times [2024-11-09 04:44:43,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:43,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936100479] [2024-11-09 04:44:43,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:43,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:43,911 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:43,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:43,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936100479] [2024-11-09 04:44:43,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936100479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:44:43,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:44:43,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 04:44:43,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332665625] [2024-11-09 04:44:43,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:44:43,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:44:43,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:43,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:44:43,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:44:43,914 INFO L87 Difference]: Start difference. First operand 9177 states and 25404 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:45,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:45,983 INFO L93 Difference]: Finished difference Result 11029 states and 29682 transitions. [2024-11-09 04:44:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 04:44:45,984 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 04:44:45,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:46,028 INFO L225 Difference]: With dead ends: 11029 [2024-11-09 04:44:46,028 INFO L226 Difference]: Without dead ends: 10612 [2024-11-09 04:44:46,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 04:44:46,032 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 278 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:44:46,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 137 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:44:46,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10612 states. [2024-11-09 04:44:46,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10612 to 9185. [2024-11-09 04:44:46,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9185 states, 9176 states have (on average 2.7713600697471663) internal successors, (25430), 9184 states have internal predecessors, (25430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:46,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9185 states to 9185 states and 25430 transitions. [2024-11-09 04:44:46,237 INFO L78 Accepts]: Start accepts. Automaton has 9185 states and 25430 transitions. Word has length 70 [2024-11-09 04:44:46,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:46,237 INFO L471 AbstractCegarLoop]: Abstraction has 9185 states and 25430 transitions. [2024-11-09 04:44:46,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:44:46,237 INFO L276 IsEmpty]: Start isEmpty. Operand 9185 states and 25430 transitions. [2024-11-09 04:44:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:44:46,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:46,241 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:46,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2024-11-09 04:44:46,241 INFO L396 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 04:44:46,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:46,242 INFO L85 PathProgramCache]: Analyzing trace with hash 627277410, now seen corresponding path program 42 times [2024-11-09 04:44:46,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:46,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137672128] [2024-11-09 04:44:46,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:46,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:46,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:46,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137672128] [2024-11-09 04:44:46,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137672128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:44:46,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053472998] [2024-11-09 04:44:46,950 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:44:46,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:44:46,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:44:46,951 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:44:46,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b6653-0bb1-47cc-8815-ff61ab828aba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-09 04:44:47,477 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:44:47,477 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:44:47,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:44:47,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:44:47,735 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:44:47,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2024-11-09 04:44:47,878 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:47,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:44:58,041 INFO L349 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2024-11-09 04:44:58,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 49 [2024-11-09 04:44:58,080 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 04:44:58,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053472998] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:44:58,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [966222283] [2024-11-09 04:44:58,081 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:44:58,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:44:58,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 30 [2024-11-09 04:44:58,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342060977] [2024-11-09 04:44:58,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:44:58,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:44:58,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:58,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:44:58,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=760, Unknown=2, NotChecked=0, Total=870 [2024-11-09 04:44:58,083 INFO L87 Difference]: Start difference. First operand 9185 states and 25430 transitions. Second operand has 30 states, 30 states have (on average 3.033333333333333) internal successors, (91), 30 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)