./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/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_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/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_6071ff87-2b51-434d-b7a3-944327e8a1d7/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 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:06:50,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:06:50,885 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 05:06:50,896 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:06:50,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:06:50,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:06:50,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:06:50,953 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:06:50,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:06:50,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:06:50,955 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:06:50,955 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:06:50,956 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:06:50,981 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:06:50,982 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:06:50,982 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:06:50,983 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:06:50,983 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:06:50,984 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:06:50,985 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:06:50,988 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:06:50,990 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:06:50,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:06:50,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:06:50,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:06:50,996 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:06:50,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:06:50,997 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:06:50,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:06:50,998 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:06:50,998 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:06:50,999 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 05:06:51,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:06:51,004 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:06:51,004 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:06:51,004 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:06:51,005 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:06:51,005 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:06:51,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:06:51,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:06:51,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:06:51,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:06:51,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:06:51,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:06:51,010 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:06:51,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:06:51,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:06:51,012 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:06:51,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:06:51,012 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_6071ff87-2b51-434d-b7a3-944327e8a1d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf [2024-11-09 05:06:51,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:06:51,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:06:51,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:06:51,436 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:06:51,437 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:06:51,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i Unable to find full path for "g++" [2024-11-09 05:06:53,663 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:06:54,026 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:06:54,030 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-11-09 05:06:54,060 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/data/6b05ec03c/1babd6add7824437bba9bd71746bed41/FLAGbd52f09ac [2024-11-09 05:06:54,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/data/6b05ec03c/1babd6add7824437bba9bd71746bed41 [2024-11-09 05:06:54,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:06:54,089 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:06:54,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:06:54,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:06:54,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:06:54,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:06:54" (1/1) ... [2024-11-09 05:06:54,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b6676e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:54, skipping insertion in model container [2024-11-09 05:06:54,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:06:54" (1/1) ... [2024-11-09 05:06:54,223 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:06:54,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:06:54,888 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:06:54,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:06:55,040 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:06:55,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55 WrapperNode [2024-11-09 05:06:55,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:06:55,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:06:55,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:06:55,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:06:55,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (1/1) ... [2024-11-09 05:06:55,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (1/1) ... [2024-11-09 05:06:55,124 INFO L138 Inliner]: procedures = 162, calls = 54, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 109 [2024-11-09 05:06:55,124 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:06:55,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:06:55,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:06:55,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:06:55,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (1/1) ... [2024-11-09 05:06:55,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (1/1) ... [2024-11-09 05:06:55,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (1/1) ... [2024-11-09 05:06:55,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (1/1) ... [2024-11-09 05:06:55,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (1/1) ... [2024-11-09 05:06:55,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (1/1) ... [2024-11-09 05:06:55,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (1/1) ... [2024-11-09 05:06:55,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (1/1) ... [2024-11-09 05:06:55,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:06:55,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:06:55,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:06:55,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:06:55,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (1/1) ... [2024-11-09 05:06:55,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:06:55,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:06:55,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:06:55,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:06:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 05:06:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:06:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 05:06:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 05:06:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:06:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 05:06:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:06:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:06:55,299 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 05:06:55,548 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:06:55,551 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:06:55,984 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 05:06:55,985 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:06:56,303 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:06:56,307 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:06:56,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:06:56 BoogieIcfgContainer [2024-11-09 05:06:56,308 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:06:56,310 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:06:56,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:06:56,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:06:56,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:06:54" (1/3) ... [2024-11-09 05:06:56,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c1a95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:06:56, skipping insertion in model container [2024-11-09 05:06:56,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:55" (2/3) ... [2024-11-09 05:06:56,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c1a95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:06:56, skipping insertion in model container [2024-11-09 05:06:56,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:06:56" (3/3) ... [2024-11-09 05:06:56,331 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2024-11-09 05:06:56,391 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:06:56,391 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-09 05:06:56,391 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 05:06:56,468 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 05:06:56,512 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 89 transitions, 185 flow [2024-11-09 05:06:56,674 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1305 states, 1300 states have (on average 2.105384615384615) internal successors, (2737), 1304 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:56,716 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:06:56,725 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;@6196b9bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:06:56,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 05:06:56,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 1305 states, 1300 states have (on average 2.105384615384615) internal successors, (2737), 1304 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:56,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 05:06:56,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:56,741 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:06:56,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-09 05:06:56,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:56,748 INFO L85 PathProgramCache]: Analyzing trace with hash 618006096, now seen corresponding path program 1 times [2024-11-09 05:06:56,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:56,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243875261] [2024-11-09 05:06:56,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:56,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:57,318 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 05:06:57,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:57,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243875261] [2024-11-09 05:06:57,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243875261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:57,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:57,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:06:57,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944841463] [2024-11-09 05:06:57,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:57,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:06:57,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:57,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:06:57,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:06:57,364 INFO L87 Difference]: Start difference. First operand has 1305 states, 1300 states have (on average 2.105384615384615) internal successors, (2737), 1304 states have internal predecessors, (2737), 0 states have call successors, (0), 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 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:57,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:57,743 INFO L93 Difference]: Finished difference Result 2366 states and 5017 transitions. [2024-11-09 05:06:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:06:57,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-11-09 05:06:57,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:57,774 INFO L225 Difference]: With dead ends: 2366 [2024-11-09 05:06:57,774 INFO L226 Difference]: Without dead ends: 1219 [2024-11-09 05:06:57,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 05:06:57,788 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 64 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:57,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 95 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:06:57,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-11-09 05:06:57,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1219. [2024-11-09 05:06:57,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1214 states have (on average 1.942339373970346) internal successors, (2358), 1218 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:57,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 2358 transitions. [2024-11-09 05:06:57,964 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 2358 transitions. Word has length 10 [2024-11-09 05:06:57,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:57,964 INFO L471 AbstractCegarLoop]: Abstraction has 1219 states and 2358 transitions. [2024-11-09 05:06:57,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:57,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 2358 transitions. [2024-11-09 05:06:57,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 05:06:57,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:57,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:06:57,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:06:57,969 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-09 05:06:57,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:57,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1590820788, now seen corresponding path program 1 times [2024-11-09 05:06:57,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:57,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429801703] [2024-11-09 05:06:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:57,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:58,256 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 05:06:58,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:58,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429801703] [2024-11-09 05:06:58,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429801703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:58,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:58,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:06:58,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818108844] [2024-11-09 05:06:58,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:58,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:06:58,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:58,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:06:58,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:06:58,262 INFO L87 Difference]: Start difference. First operand 1219 states and 2358 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:58,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:58,580 INFO L93 Difference]: Finished difference Result 2062 states and 3931 transitions. [2024-11-09 05:06:58,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:06:58,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2024-11-09 05:06:58,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:58,590 INFO L225 Difference]: With dead ends: 2062 [2024-11-09 05:06:58,591 INFO L226 Difference]: Without dead ends: 967 [2024-11-09 05:06:58,594 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 05:06:58,596 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 115 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:58,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 69 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:06:58,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2024-11-09 05:06:58,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 885. [2024-11-09 05:06:58,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 879 states have (on average 1.8850967007963595) internal successors, (1657), 884 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:58,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1657 transitions. [2024-11-09 05:06:58,635 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1657 transitions. Word has length 15 [2024-11-09 05:06:58,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:58,636 INFO L471 AbstractCegarLoop]: Abstraction has 885 states and 1657 transitions. [2024-11-09 05:06:58,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:58,637 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1657 transitions. [2024-11-09 05:06:58,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 05:06:58,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:58,639 INFO L215 NwaCegarLoop]: trace histogram [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 05:06:58,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:06:58,640 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-09 05:06:58,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:58,641 INFO L85 PathProgramCache]: Analyzing trace with hash -483419988, now seen corresponding path program 1 times [2024-11-09 05:06:58,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:58,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747797510] [2024-11-09 05:06:58,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:58,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:58,902 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 05:06:58,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:58,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747797510] [2024-11-09 05:06:58,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747797510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:58,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:58,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:06:58,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019020244] [2024-11-09 05:06:58,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:58,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:06:58,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:58,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:06:58,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:06:58,909 INFO L87 Difference]: Start difference. First operand 885 states and 1657 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:59,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:59,184 INFO L93 Difference]: Finished difference Result 953 states and 1789 transitions. [2024-11-09 05:06:59,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:06:59,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2024-11-09 05:06:59,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:59,197 INFO L225 Difference]: With dead ends: 953 [2024-11-09 05:06:59,201 INFO L226 Difference]: Without dead ends: 818 [2024-11-09 05:06:59,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:06:59,204 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 93 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:59,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 101 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:06:59,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-11-09 05:06:59,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 801. [2024-11-09 05:06:59,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 797 states have (on average 1.875784190715182) internal successors, (1495), 800 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:59,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1495 transitions. [2024-11-09 05:06:59,240 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1495 transitions. Word has length 22 [2024-11-09 05:06:59,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:59,241 INFO L471 AbstractCegarLoop]: Abstraction has 801 states and 1495 transitions. [2024-11-09 05:06:59,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1495 transitions. [2024-11-09 05:06:59,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 05:06:59,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:59,249 INFO L215 NwaCegarLoop]: trace histogram [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 05:06:59,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:06:59,250 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-09 05:06:59,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:59,250 INFO L85 PathProgramCache]: Analyzing trace with hash -964637551, now seen corresponding path program 1 times [2024-11-09 05:06:59,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:59,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689404299] [2024-11-09 05:06:59,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:59,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:59,384 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 05:06:59,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:59,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689404299] [2024-11-09 05:06:59,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689404299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:59,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:59,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:06:59,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033878339] [2024-11-09 05:06:59,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:59,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:06:59,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:59,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:06:59,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:06:59,388 INFO L87 Difference]: Start difference. First operand 801 states and 1495 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:59,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:59,662 INFO L93 Difference]: Finished difference Result 837 states and 1563 transitions. [2024-11-09 05:06:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:06:59,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-09 05:06:59,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:59,670 INFO L225 Difference]: With dead ends: 837 [2024-11-09 05:06:59,671 INFO L226 Difference]: Without dead ends: 789 [2024-11-09 05:06:59,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 05:06:59,674 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 60 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:59,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 77 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:06:59,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2024-11-09 05:06:59,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2024-11-09 05:06:59,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 786 states have (on average 1.8740458015267176) internal successors, (1473), 788 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1473 transitions. [2024-11-09 05:06:59,720 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1473 transitions. Word has length 24 [2024-11-09 05:06:59,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:59,721 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1473 transitions. [2024-11-09 05:06:59,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:59,721 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1473 transitions. [2024-11-09 05:06:59,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 05:06:59,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:59,728 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:59,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:06:59,729 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-09 05:06:59,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:59,730 INFO L85 PathProgramCache]: Analyzing trace with hash -243943715, now seen corresponding path program 1 times [2024-11-09 05:06:59,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:59,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050944404] [2024-11-09 05:06:59,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:59,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:59,928 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 05:06:59,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:59,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050944404] [2024-11-09 05:06:59,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050944404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:59,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:59,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:06:59,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345686954] [2024-11-09 05:06:59,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:59,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:06:59,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:59,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:06:59,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:06:59,936 INFO L87 Difference]: Start difference. First operand 789 states and 1473 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 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 05:07:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:07:00,122 INFO L93 Difference]: Finished difference Result 1250 states and 2310 transitions. [2024-11-09 05:07:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:07:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 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 37 [2024-11-09 05:07:00,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:07:00,130 INFO L225 Difference]: With dead ends: 1250 [2024-11-09 05:07:00,130 INFO L226 Difference]: Without dead ends: 731 [2024-11-09 05:07:00,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 05:07:00,135 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 38 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:07:00,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 66 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:07:00,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-11-09 05:07:00,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 661. [2024-11-09 05:07:00,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 657 states have (on average 1.7595129375951293) internal successors, (1156), 660 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:00,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1156 transitions. [2024-11-09 05:07:00,165 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1156 transitions. Word has length 37 [2024-11-09 05:07:00,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:07:00,166 INFO L471 AbstractCegarLoop]: Abstraction has 661 states and 1156 transitions. [2024-11-09 05:07:00,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 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 05:07:00,167 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1156 transitions. [2024-11-09 05:07:00,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 05:07:00,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:07:00,171 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:07:00,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:07:00,171 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-09 05:07:00,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:07:00,173 INFO L85 PathProgramCache]: Analyzing trace with hash -763585228, now seen corresponding path program 1 times [2024-11-09 05:07:00,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:07:00,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335694302] [2024-11-09 05:07:00,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:07:00,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:07:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:07:00,773 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 05:07:00,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:07:00,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335694302] [2024-11-09 05:07:00,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335694302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:07:00,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:07:00,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:07:00,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782052464] [2024-11-09 05:07:00,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:07:00,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:07:00,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:07:00,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:07:00,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:07:00,779 INFO L87 Difference]: Start difference. First operand 661 states and 1156 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:00,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:07:00,927 INFO L93 Difference]: Finished difference Result 832 states and 1449 transitions. [2024-11-09 05:07:00,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:07:00,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2024-11-09 05:07:00,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:07:00,938 INFO L225 Difference]: With dead ends: 832 [2024-11-09 05:07:00,939 INFO L226 Difference]: Without dead ends: 575 [2024-11-09 05:07:00,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:07:00,943 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 86 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:07:00,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 38 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:07:00,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-09 05:07:00,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2024-11-09 05:07:00,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 572 states have (on average 1.7325174825174825) internal successors, (991), 574 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:00,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 991 transitions. [2024-11-09 05:07:00,973 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 991 transitions. Word has length 38 [2024-11-09 05:07:00,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:07:00,976 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 991 transitions. [2024-11-09 05:07:00,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:00,976 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 991 transitions. [2024-11-09 05:07:00,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 05:07:00,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:07:00,980 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:07:00,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:07:00,980 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-09 05:07:00,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:07:00,981 INFO L85 PathProgramCache]: Analyzing trace with hash -787413700, now seen corresponding path program 1 times [2024-11-09 05:07:00,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:07:00,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795784586] [2024-11-09 05:07:00,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:07:00,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:07:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:07:01,242 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 05:07:01,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:07:01,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795784586] [2024-11-09 05:07:01,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795784586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:07:01,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:07:01,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:07:01,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821155264] [2024-11-09 05:07:01,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:07:01,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:07:01,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:07:01,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:07:01,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:07:01,248 INFO L87 Difference]: Start difference. First operand 575 states and 991 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:01,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:07:01,411 INFO L93 Difference]: Finished difference Result 736 states and 1249 transitions. [2024-11-09 05:07:01,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:07:01,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 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 05:07:01,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:07:01,418 INFO L225 Difference]: With dead ends: 736 [2024-11-09 05:07:01,419 INFO L226 Difference]: Without dead ends: 443 [2024-11-09 05:07:01,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:07:01,421 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 110 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:07:01,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 50 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:07:01,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-09 05:07:01,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 423. [2024-11-09 05:07:01,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 421 states have (on average 1.6389548693586697) internal successors, (690), 422 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:01,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 690 transitions. [2024-11-09 05:07:01,441 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 690 transitions. Word has length 42 [2024-11-09 05:07:01,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:07:01,442 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 690 transitions. [2024-11-09 05:07:01,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:01,442 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 690 transitions. [2024-11-09 05:07:01,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 05:07:01,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:07:01,444 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:07:01,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:07:01,444 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-09 05:07:01,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:07:01,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1861336825, now seen corresponding path program 1 times [2024-11-09 05:07:01,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:07:01,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240101919] [2024-11-09 05:07:01,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:07:01,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:07:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:07:01,750 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 05:07:01,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:07:01,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240101919] [2024-11-09 05:07:01,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240101919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:07:01,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:07:01,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:07:01,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373186992] [2024-11-09 05:07:01,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:07:01,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:07:01,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:07:01,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:07:01,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:07:01,755 INFO L87 Difference]: Start difference. First operand 423 states and 690 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:07:01,948 INFO L93 Difference]: Finished difference Result 423 states and 690 transitions. [2024-11-09 05:07:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:07:01,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-09 05:07:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:07:01,956 INFO L225 Difference]: With dead ends: 423 [2024-11-09 05:07:01,959 INFO L226 Difference]: Without dead ends: 417 [2024-11-09 05:07:01,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:07:01,961 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 46 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:07:01,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 89 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:07:01,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-09 05:07:01,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-11-09 05:07:01,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 416 states have (on average 1.6370192307692308) internal successors, (681), 416 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 681 transitions. [2024-11-09 05:07:01,977 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 681 transitions. Word has length 48 [2024-11-09 05:07:01,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:07:01,980 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 681 transitions. [2024-11-09 05:07:01,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:01,981 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 681 transitions. [2024-11-09 05:07:01,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 05:07:01,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:07:01,982 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:07:01,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:07:01,983 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-09 05:07:01,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:07:01,985 INFO L85 PathProgramCache]: Analyzing trace with hash -537056345, now seen corresponding path program 1 times [2024-11-09 05:07:01,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:07:01,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919165540] [2024-11-09 05:07:01,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:07:01,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:07:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:07:02,087 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 05:07:02,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:07:02,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919165540] [2024-11-09 05:07:02,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919165540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:07:02,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:07:02,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:07:02,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817322759] [2024-11-09 05:07:02,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:07:02,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:07:02,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:07:02,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:07:02,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:07:02,092 INFO L87 Difference]: Start difference. First operand 417 states and 681 transitions. Second operand has 3 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:02,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:07:02,171 INFO L93 Difference]: Finished difference Result 417 states and 681 transitions. [2024-11-09 05:07:02,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:07:02,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 05:07:02,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:07:02,175 INFO L225 Difference]: With dead ends: 417 [2024-11-09 05:07:02,175 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:07:02,178 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 05:07:02,180 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:07:02,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:07:02,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:07:02,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:07:02,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:02,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:07:02,186 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2024-11-09 05:07:02,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:07:02,187 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:07:02,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:07:02,187 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:07:02,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:07:02,191 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-09 05:07:02,191 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-09 05:07:02,192 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-09 05:07:02,192 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (2 of 6 remaining) [2024-11-09 05:07:02,192 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2024-11-09 05:07:02,193 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-09 05:07:02,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:07:02,197 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:07:02,201 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 05:07:02,201 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:07:02,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:07:02 BasicIcfg [2024-11-09 05:07:02,207 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:07:02,208 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:07:02,208 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:07:02,208 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:07:02,209 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:06:56" (3/4) ... [2024-11-09 05:07:02,212 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 05:07:02,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-09 05:07:02,226 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2024-11-09 05:07:02,227 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 05:07:02,227 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 05:07:02,228 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 05:07:02,336 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:07:02,337 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 05:07:02,337 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:07:02,338 INFO L158 Benchmark]: Toolchain (without parser) took 8249.26ms. Allocated memory was 119.5MB in the beginning and 237.0MB in the end (delta: 117.4MB). Free memory was 59.6MB in the beginning and 150.8MB in the end (delta: -91.2MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2024-11-09 05:07:02,338 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 119.5MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:07:02,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 950.59ms. Allocated memory was 119.5MB in the beginning and 190.8MB in the end (delta: 71.3MB). Free memory was 59.5MB in the beginning and 141.7MB in the end (delta: -82.3MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-11-09 05:07:02,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.19ms. Allocated memory is still 190.8MB. Free memory was 140.9MB in the beginning and 138.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:07:02,339 INFO L158 Benchmark]: Boogie Preprocessor took 59.92ms. Allocated memory is still 190.8MB. Free memory was 138.8MB in the beginning and 137.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:07:02,340 INFO L158 Benchmark]: RCFGBuilder took 1121.91ms. Allocated memory is still 190.8MB. Free memory was 137.5MB in the beginning and 157.9MB in the end (delta: -20.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-11-09 05:07:02,340 INFO L158 Benchmark]: TraceAbstraction took 5896.66ms. Allocated memory was 190.8MB in the beginning and 237.0MB in the end (delta: 46.1MB). Free memory was 156.9MB in the beginning and 154.9MB in the end (delta: 1.9MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2024-11-09 05:07:02,340 INFO L158 Benchmark]: Witness Printer took 129.27ms. Allocated memory is still 237.0MB. Free memory was 154.9MB in the beginning and 150.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:07:02,342 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 119.5MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 950.59ms. Allocated memory was 119.5MB in the beginning and 190.8MB in the end (delta: 71.3MB). Free memory was 59.5MB in the beginning and 141.7MB in the end (delta: -82.3MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.19ms. Allocated memory is still 190.8MB. Free memory was 140.9MB in the beginning and 138.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.92ms. Allocated memory is still 190.8MB. Free memory was 138.8MB in the beginning and 137.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1121.91ms. Allocated memory is still 190.8MB. Free memory was 137.5MB in the beginning and 157.9MB in the end (delta: -20.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5896.66ms. Allocated memory was 190.8MB in the beginning and 237.0MB in the end (delta: 46.1MB). Free memory was 156.9MB in the beginning and 154.9MB in the end (delta: 1.9MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * Witness Printer took 129.27ms. Allocated memory is still 237.0MB. Free memory was 154.9MB in the beginning and 150.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 704]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 612 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 612 mSDsluCounter, 606 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 303 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1054 IncrementalHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 303 mSDtfsCounter, 1054 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1305occurred in iteration=0, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 189 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 299 NumberOfCodeBlocks, 299 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 290 ConstructedInterpolants, 0 QuantifiedInterpolants, 1164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 05:07:02,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6071ff87-2b51-434d-b7a3-944327e8a1d7/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE