./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ --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 4f758b611596923134c7292307712c4e6636a1a24449562e0f1ec6ef2697b141 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:46:30,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:46:30,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 04:46:30,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:46:30,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:46:30,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:46:30,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:46:30,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:46:30,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:46:30,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:46:30,970 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:46:30,971 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:46:30,972 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:46:30,974 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:46:30,974 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:46:30,975 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:46:30,975 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:46:30,978 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:46:30,978 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:46:30,979 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:46:30,979 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:46:30,980 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:46:30,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:46:30,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:46:30,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:46:30,983 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:46:30,984 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:46:30,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:46:30,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:46:30,985 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:46:30,987 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:46:30,987 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:46:30,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:46:30,988 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:46:30,988 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:46:30,988 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:46:30,989 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:46:30,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:46:30,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:46:30,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:30,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:46:30,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:46:30,991 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:46:30,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:46:30,992 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:46:30,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:46:30,992 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_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f758b611596923134c7292307712c4e6636a1a24449562e0f1ec6ef2697b141 [2023-11-19 04:46:31,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:46:31,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:46:31,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:46:31,381 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:46:31,382 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:46:31,383 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i [2023-11-19 04:46:34,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:46:35,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:46:35,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i [2023-11-19 04:46:35,077 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/data/ffd44326c/1f29369420ef49ce94ef7b6bc1276f52/FLAG328dc50bc [2023-11-19 04:46:35,099 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/data/ffd44326c/1f29369420ef49ce94ef7b6bc1276f52 [2023-11-19 04:46:35,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:46:35,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:46:35,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:35,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:46:35,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:46:35,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:35" (1/1) ... [2023-11-19 04:46:35,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7419c5b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:35, skipping insertion in model container [2023-11-19 04:46:35,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:35" (1/1) ... [2023-11-19 04:46:35,234 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:46:35,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:35,839 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:46:35,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:35,995 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:46:35,995 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:46:36,003 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:46:36,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36 WrapperNode [2023-11-19 04:46:36,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:36,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:36,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:46:36,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:46:36,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (1/1) ... [2023-11-19 04:46:36,067 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (1/1) ... [2023-11-19 04:46:36,109 INFO L138 Inliner]: procedures = 177, calls = 70, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2023-11-19 04:46:36,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:36,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:46:36,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:46:36,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:46:36,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (1/1) ... [2023-11-19 04:46:36,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (1/1) ... [2023-11-19 04:46:36,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (1/1) ... [2023-11-19 04:46:36,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (1/1) ... [2023-11-19 04:46:36,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (1/1) ... [2023-11-19 04:46:36,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (1/1) ... [2023-11-19 04:46:36,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (1/1) ... [2023-11-19 04:46:36,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (1/1) ... [2023-11-19 04:46:36,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:46:36,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:46:36,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:46:36,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:46:36,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (1/1) ... [2023-11-19 04:46:36,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:36,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:46:36,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:46:36,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:46:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:46:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:46:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:46:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:46:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:46:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 04:46:36,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 04:46:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 04:46:36,282 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 04:46:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 04:46:36,282 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 04:46:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 04:46:36,282 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 04:46:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:46:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:46:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:46:36,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:46:36,285 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:46:36,492 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:46:36,494 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:46:36,920 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:46:37,145 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:46:37,149 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:46:37,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:37 BoogieIcfgContainer [2023-11-19 04:46:37,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:46:37,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:46:37,159 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:46:37,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:46:37,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:46:35" (1/3) ... [2023-11-19 04:46:37,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd88876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:37, skipping insertion in model container [2023-11-19 04:46:37,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:36" (2/3) ... [2023-11-19 04:46:37,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd88876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:37, skipping insertion in model container [2023-11-19 04:46:37,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:37" (3/3) ... [2023-11-19 04:46:37,169 INFO L112 eAbstractionObserver]: Analyzing ICFG mix027_power.opt_pso.opt_rmo.opt.i [2023-11-19 04:46:37,192 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:46:37,193 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 04:46:37,193 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:46:37,319 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 04:46:37,363 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:46:37,377 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 151 transitions, 318 flow [2023-11-19 04:46:37,380 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 151 transitions, 318 flow [2023-11-19 04:46:37,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 151 transitions, 318 flow [2023-11-19 04:46:37,451 INFO L124 PetriNetUnfolderBase]: 4/147 cut-off events. [2023-11-19 04:46:37,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 04:46:37,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 147 events. 4/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2023-11-19 04:46:37,466 INFO L119 LiptonReduction]: Number of co-enabled transitions 4176 [2023-11-19 04:46:43,764 INFO L134 LiptonReduction]: Checked pairs total: 9467 [2023-11-19 04:46:43,765 INFO L136 LiptonReduction]: Total number of compositions: 150 [2023-11-19 04:46:43,777 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 44 transitions, 104 flow [2023-11-19 04:46:44,095 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4116 states, 4101 states have (on average 4.205803462570105) internal successors, (17248), 4115 states have internal predecessors, (17248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:44,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:46:44,126 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@4a801f0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:46:44,127 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-19 04:46:44,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 4116 states, 4101 states have (on average 4.205803462570105) internal successors, (17248), 4115 states have internal predecessors, (17248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:44,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-19 04:46:44,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:44,152 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-19 04:46:44,153 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:44,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:44,158 INFO L85 PathProgramCache]: Analyzing trace with hash 644, now seen corresponding path program 1 times [2023-11-19 04:46:44,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:44,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784321151] [2023-11-19 04:46:44,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:44,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:44,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:44,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:44,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784321151] [2023-11-19 04:46:44,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784321151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:44,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:44,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 04:46:44,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545823054] [2023-11-19 04:46:44,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:44,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:46:44,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:44,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:46:44,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:46:44,363 INFO L87 Difference]: Start difference. First operand has 4116 states, 4101 states have (on average 4.205803462570105) internal successors, (17248), 4115 states have internal predecessors, (17248), 0 states have call successors, (0), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:44,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:44,529 INFO L93 Difference]: Finished difference Result 3882 states and 15296 transitions. [2023-11-19 04:46:44,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:46:44,532 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 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 1 [2023-11-19 04:46:44,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:44,600 INFO L225 Difference]: With dead ends: 3882 [2023-11-19 04:46:44,600 INFO L226 Difference]: Without dead ends: 3882 [2023-11-19 04:46:44,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:46:44,605 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:44,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:46:44,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3882 states. [2023-11-19 04:46:44,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3882 to 3882. [2023-11-19 04:46:44,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3882 states, 3877 states have (on average 3.945318545266959) internal successors, (15296), 3881 states have internal predecessors, (15296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:45,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 15296 transitions. [2023-11-19 04:46:45,031 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 15296 transitions. Word has length 1 [2023-11-19 04:46:45,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:45,032 INFO L495 AbstractCegarLoop]: Abstraction has 3882 states and 15296 transitions. [2023-11-19 04:46:45,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:45,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 15296 transitions. [2023-11-19 04:46:45,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:46:45,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:45,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:45,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:46:45,041 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:45,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:45,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2070589462, now seen corresponding path program 1 times [2023-11-19 04:46:45,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:45,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193942985] [2023-11-19 04:46:45,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:45,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:45,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:45,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:45,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193942985] [2023-11-19 04:46:45,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193942985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:45,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:45,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:46:45,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724460090] [2023-11-19 04:46:45,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:45,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:46:45,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:45,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:46:45,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:46:45,496 INFO L87 Difference]: Start difference. First operand 3882 states and 15296 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:45,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:45,672 INFO L93 Difference]: Finished difference Result 3178 states and 12368 transitions. [2023-11-19 04:46:45,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:46:45,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 04:46:45,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:45,712 INFO L225 Difference]: With dead ends: 3178 [2023-11-19 04:46:45,712 INFO L226 Difference]: Without dead ends: 3082 [2023-11-19 04:46:45,713 INFO L412 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 [2023-11-19 04:46:45,716 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:45,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:46:45,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2023-11-19 04:46:45,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 3082. [2023-11-19 04:46:45,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 3080 states have (on average 3.911688311688312) internal successors, (12048), 3081 states have internal predecessors, (12048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:45,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 12048 transitions. [2023-11-19 04:46:45,951 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 12048 transitions. Word has length 7 [2023-11-19 04:46:45,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:45,953 INFO L495 AbstractCegarLoop]: Abstraction has 3082 states and 12048 transitions. [2023-11-19 04:46:45,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:45,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 12048 transitions. [2023-11-19 04:46:45,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:46:45,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:45,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:45,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:46:45,966 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:45,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:45,969 INFO L85 PathProgramCache]: Analyzing trace with hash -155348284, now seen corresponding path program 1 times [2023-11-19 04:46:45,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:45,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797362291] [2023-11-19 04:46:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:45,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:46,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:46,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797362291] [2023-11-19 04:46:46,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797362291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:46,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:46,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:46:46,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374892431] [2023-11-19 04:46:46,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:46,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:46:46,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:46,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:46:46,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:46:46,989 INFO L87 Difference]: Start difference. First operand 3082 states and 12048 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:47,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:47,271 INFO L93 Difference]: Finished difference Result 2602 states and 10064 transitions. [2023-11-19 04:46:47,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:46:47,273 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2023-11-19 04:46:47,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:47,303 INFO L225 Difference]: With dead ends: 2602 [2023-11-19 04:46:47,304 INFO L226 Difference]: Without dead ends: 2602 [2023-11-19 04:46:47,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:46:47,308 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:47,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 16 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:46:47,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2023-11-19 04:46:47,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2602. [2023-11-19 04:46:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2601 states have (on average 3.869281045751634) internal successors, (10064), 2601 states have internal predecessors, (10064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:47,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 10064 transitions. [2023-11-19 04:46:47,471 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 10064 transitions. Word has length 12 [2023-11-19 04:46:47,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:47,472 INFO L495 AbstractCegarLoop]: Abstraction has 2602 states and 10064 transitions. [2023-11-19 04:46:47,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:47,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 10064 transitions. [2023-11-19 04:46:47,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:46:47,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:47,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:47,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:46:47,475 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:47,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:47,475 INFO L85 PathProgramCache]: Analyzing trace with hash -155348304, now seen corresponding path program 1 times [2023-11-19 04:46:47,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:47,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846040233] [2023-11-19 04:46:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:47,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:47,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:47,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:47,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846040233] [2023-11-19 04:46:47,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846040233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:47,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:47,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:46:47,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16287376] [2023-11-19 04:46:47,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:47,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:46:47,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:47,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:46:47,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:46:47,681 INFO L87 Difference]: Start difference. First operand 2602 states and 10064 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:47,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:47,966 INFO L93 Difference]: Finished difference Result 5358 states and 19832 transitions. [2023-11-19 04:46:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:46:47,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2023-11-19 04:46:47,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:48,024 INFO L225 Difference]: With dead ends: 5358 [2023-11-19 04:46:48,025 INFO L226 Difference]: Without dead ends: 4222 [2023-11-19 04:46:48,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:46:48,026 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 34 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:48,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 12 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:46:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2023-11-19 04:46:48,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 3486. [2023-11-19 04:46:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3486 states, 3485 states have (on average 3.774175035868006) internal successors, (13153), 3485 states have internal predecessors, (13153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:48,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3486 states to 3486 states and 13153 transitions. [2023-11-19 04:46:48,257 INFO L78 Accepts]: Start accepts. Automaton has 3486 states and 13153 transitions. Word has length 12 [2023-11-19 04:46:48,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:48,257 INFO L495 AbstractCegarLoop]: Abstraction has 3486 states and 13153 transitions. [2023-11-19 04:46:48,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:48,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3486 states and 13153 transitions. [2023-11-19 04:46:48,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:46:48,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:48,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:48,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:46:48,261 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:48,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:48,261 INFO L85 PathProgramCache]: Analyzing trace with hash -163995138, now seen corresponding path program 1 times [2023-11-19 04:46:48,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:48,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169904395] [2023-11-19 04:46:48,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:48,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:48,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:48,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:48,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169904395] [2023-11-19 04:46:48,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169904395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:48,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:48,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:46:48,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694010739] [2023-11-19 04:46:48,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:48,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:46:48,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:48,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:46:48,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:46:48,479 INFO L87 Difference]: Start difference. First operand 3486 states and 13153 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:48,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:48,736 INFO L93 Difference]: Finished difference Result 4434 states and 16044 transitions. [2023-11-19 04:46:48,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:46:48,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2023-11-19 04:46:48,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:48,763 INFO L225 Difference]: With dead ends: 4434 [2023-11-19 04:46:48,763 INFO L226 Difference]: Without dead ends: 3718 [2023-11-19 04:46:48,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:46:48,764 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 54 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:48,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 20 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:46:48,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2023-11-19 04:46:48,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 2762. [2023-11-19 04:46:48,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2761 states have (on average 3.7493661716769284) internal successors, (10352), 2761 states have internal predecessors, (10352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:48,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 10352 transitions. [2023-11-19 04:46:48,902 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 10352 transitions. Word has length 13 [2023-11-19 04:46:48,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:48,902 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 10352 transitions. [2023-11-19 04:46:48,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:48,903 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 10352 transitions. [2023-11-19 04:46:48,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:46:48,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:48,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:48,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:46:48,910 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:48,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:48,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1033005919, now seen corresponding path program 1 times [2023-11-19 04:46:48,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:48,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087034649] [2023-11-19 04:46:48,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:48,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:49,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:49,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:49,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087034649] [2023-11-19 04:46:49,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087034649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:49,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:49,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:46:49,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108309347] [2023-11-19 04:46:49,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:49,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:46:49,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:49,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:46:49,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:46:49,128 INFO L87 Difference]: Start difference. First operand 2762 states and 10352 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:49,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:49,393 INFO L93 Difference]: Finished difference Result 4082 states and 14622 transitions. [2023-11-19 04:46:49,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:46:49,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2023-11-19 04:46:49,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:49,413 INFO L225 Difference]: With dead ends: 4082 [2023-11-19 04:46:49,413 INFO L226 Difference]: Without dead ends: 3540 [2023-11-19 04:46:49,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:46:49,414 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 54 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:49,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 17 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:46:49,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3540 states. [2023-11-19 04:46:49,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3540 to 2610. [2023-11-19 04:46:49,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 2609 states have (on average 3.7155998466845537) internal successors, (9694), 2609 states have internal predecessors, (9694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:49,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 9694 transitions. [2023-11-19 04:46:49,539 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 9694 transitions. Word has length 14 [2023-11-19 04:46:49,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:49,539 INFO L495 AbstractCegarLoop]: Abstraction has 2610 states and 9694 transitions. [2023-11-19 04:46:49,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:49,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 9694 transitions. [2023-11-19 04:46:49,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:46:49,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:49,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:49,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:46:49,544 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:49,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:49,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1313333037, now seen corresponding path program 1 times [2023-11-19 04:46:49,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:49,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445661183] [2023-11-19 04:46:49,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:49,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:49,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:49,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445661183] [2023-11-19 04:46:49,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445661183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:49,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:49,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:46:49,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927921731] [2023-11-19 04:46:49,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:49,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:46:49,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:49,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:46:49,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:46:49,706 INFO L87 Difference]: Start difference. First operand 2610 states and 9694 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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) [2023-11-19 04:46:49,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:49,783 INFO L93 Difference]: Finished difference Result 1994 states and 6642 transitions. [2023-11-19 04:46:49,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:46:49,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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 [2023-11-19 04:46:49,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:49,793 INFO L225 Difference]: With dead ends: 1994 [2023-11-19 04:46:49,793 INFO L226 Difference]: Without dead ends: 1994 [2023-11-19 04:46:49,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:46:49,794 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:49,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 6 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:46:49,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2023-11-19 04:46:49,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1994. [2023-11-19 04:46:49,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1994 states, 1993 states have (on average 3.332664325137983) internal successors, (6642), 1993 states have internal predecessors, (6642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:49,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 6642 transitions. [2023-11-19 04:46:49,870 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 6642 transitions. Word has length 15 [2023-11-19 04:46:49,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:49,870 INFO L495 AbstractCegarLoop]: Abstraction has 1994 states and 6642 transitions. [2023-11-19 04:46:49,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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) [2023-11-19 04:46:49,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 6642 transitions. [2023-11-19 04:46:49,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:46:49,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:49,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:49,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 04:46:49,875 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:49,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:49,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1606987468, now seen corresponding path program 1 times [2023-11-19 04:46:49,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:49,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875998004] [2023-11-19 04:46:49,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:49,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:50,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:50,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:50,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875998004] [2023-11-19 04:46:50,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875998004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:50,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:50,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:46:50,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043935510] [2023-11-19 04:46:50,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:50,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:46:50,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:50,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:46:50,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:46:50,020 INFO L87 Difference]: Start difference. First operand 1994 states and 6642 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:50,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:50,186 INFO L93 Difference]: Finished difference Result 2914 states and 9390 transitions. [2023-11-19 04:46:50,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:46:50,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2023-11-19 04:46:50,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:50,197 INFO L225 Difference]: With dead ends: 2914 [2023-11-19 04:46:50,197 INFO L226 Difference]: Without dead ends: 2026 [2023-11-19 04:46:50,197 INFO L412 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 [2023-11-19 04:46:50,198 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 32 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:50,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 19 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:46:50,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2023-11-19 04:46:50,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1786. [2023-11-19 04:46:50,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1785 states have (on average 3.207843137254902) internal successors, (5726), 1785 states have internal predecessors, (5726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:50,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 5726 transitions. [2023-11-19 04:46:50,269 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 5726 transitions. Word has length 17 [2023-11-19 04:46:50,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:50,270 INFO L495 AbstractCegarLoop]: Abstraction has 1786 states and 5726 transitions. [2023-11-19 04:46:50,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:50,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 5726 transitions. [2023-11-19 04:46:50,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:46:50,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:50,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:50,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 04:46:50,274 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:50,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:50,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1629397733, now seen corresponding path program 1 times [2023-11-19 04:46:50,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:50,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185512311] [2023-11-19 04:46:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:50,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:50,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:50,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185512311] [2023-11-19 04:46:50,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185512311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:50,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:50,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:46:50,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561897448] [2023-11-19 04:46:50,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:50,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:46:50,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:50,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:46:50,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:46:50,517 INFO L87 Difference]: Start difference. First operand 1786 states and 5726 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:50,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:50,638 INFO L93 Difference]: Finished difference Result 1116 states and 3160 transitions. [2023-11-19 04:46:50,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:46:50,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2023-11-19 04:46:50,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:50,644 INFO L225 Difference]: With dead ends: 1116 [2023-11-19 04:46:50,644 INFO L226 Difference]: Without dead ends: 1116 [2023-11-19 04:46:50,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:46:50,646 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 26 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:50,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 9 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:46:50,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2023-11-19 04:46:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1110. [2023-11-19 04:46:50,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1109 states have (on average 2.8322813345356175) internal successors, (3141), 1109 states have internal predecessors, (3141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:50,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 3141 transitions. [2023-11-19 04:46:50,693 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 3141 transitions. Word has length 17 [2023-11-19 04:46:50,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:50,693 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 3141 transitions. [2023-11-19 04:46:50,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:50,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 3141 transitions. [2023-11-19 04:46:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:46:50,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:50,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:50,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 04:46:50,698 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:50,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:50,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1267437328, now seen corresponding path program 1 times [2023-11-19 04:46:50,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:50,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139140527] [2023-11-19 04:46:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:50,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:50,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:50,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:50,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139140527] [2023-11-19 04:46:50,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139140527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:50,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:50,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:46:50,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595938606] [2023-11-19 04:46:50,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:50,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:46:50,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:50,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:46:50,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:46:50,962 INFO L87 Difference]: Start difference. First operand 1110 states and 3141 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:51,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:51,093 INFO L93 Difference]: Finished difference Result 810 states and 2279 transitions. [2023-11-19 04:46:51,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:46:51,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-19 04:46:51,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:51,097 INFO L225 Difference]: With dead ends: 810 [2023-11-19 04:46:51,097 INFO L226 Difference]: Without dead ends: 786 [2023-11-19 04:46:51,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:46:51,098 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 50 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:51,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 12 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:46:51,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2023-11-19 04:46:51,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 750. [2023-11-19 04:46:51,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 749 states have (on average 2.8104138851802403) internal successors, (2105), 749 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:51,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 2105 transitions. [2023-11-19 04:46:51,123 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 2105 transitions. Word has length 20 [2023-11-19 04:46:51,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:51,124 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 2105 transitions. [2023-11-19 04:46:51,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:51,124 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 2105 transitions. [2023-11-19 04:46:51,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 04:46:51,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:51,127 INFO L195 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] [2023-11-19 04:46:51,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 04:46:51,127 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:51,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:51,128 INFO L85 PathProgramCache]: Analyzing trace with hash 985011315, now seen corresponding path program 1 times [2023-11-19 04:46:51,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:51,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015124852] [2023-11-19 04:46:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:51,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:51,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:51,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:51,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015124852] [2023-11-19 04:46:51,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015124852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:51,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:51,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:46:51,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603512078] [2023-11-19 04:46:51,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:51,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:46:51,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:51,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:46:51,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:46:51,341 INFO L87 Difference]: Start difference. First operand 750 states and 2105 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:51,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:51,535 INFO L93 Difference]: Finished difference Result 979 states and 2660 transitions. [2023-11-19 04:46:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:46:51,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-11-19 04:46:51,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:51,538 INFO L225 Difference]: With dead ends: 979 [2023-11-19 04:46:51,538 INFO L226 Difference]: Without dead ends: 653 [2023-11-19 04:46:51,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:46:51,539 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 37 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:51,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 19 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:46:51,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2023-11-19 04:46:51,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 647. [2023-11-19 04:46:51,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 646 states have (on average 2.623839009287926) internal successors, (1695), 646 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:51,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 1695 transitions. [2023-11-19 04:46:51,560 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 1695 transitions. Word has length 23 [2023-11-19 04:46:51,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:51,561 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 1695 transitions. [2023-11-19 04:46:51,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:51,561 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 1695 transitions. [2023-11-19 04:46:51,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 04:46:51,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:51,564 INFO L195 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] [2023-11-19 04:46:51,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 04:46:51,564 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:51,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:51,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1265927819, now seen corresponding path program 2 times [2023-11-19 04:46:51,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:51,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732641943] [2023-11-19 04:46:51,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:51,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:51,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:51,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:51,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732641943] [2023-11-19 04:46:51,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732641943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:51,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:51,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:46:51,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782057781] [2023-11-19 04:46:51,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:51,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:46:51,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:51,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:46:51,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:46:51,815 INFO L87 Difference]: Start difference. First operand 647 states and 1695 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:51,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:51,948 INFO L93 Difference]: Finished difference Result 591 states and 1589 transitions. [2023-11-19 04:46:51,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:46:51,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-11-19 04:46:51,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:51,949 INFO L225 Difference]: With dead ends: 591 [2023-11-19 04:46:51,949 INFO L226 Difference]: Without dead ends: 179 [2023-11-19 04:46:51,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:46:51,950 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 61 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:51,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 10 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:46:51,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-19 04:46:51,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 161. [2023-11-19 04:46:51,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 2.36875) internal successors, (379), 160 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:51,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 379 transitions. [2023-11-19 04:46:51,958 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 379 transitions. Word has length 23 [2023-11-19 04:46:51,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:51,958 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 379 transitions. [2023-11-19 04:46:51,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:51,958 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 379 transitions. [2023-11-19 04:46:51,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 04:46:51,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:51,960 INFO L195 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] [2023-11-19 04:46:51,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 04:46:51,960 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:51,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:51,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1696075888, now seen corresponding path program 1 times [2023-11-19 04:46:51,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:51,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446231671] [2023-11-19 04:46:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:51,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:46:52,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:52,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446231671] [2023-11-19 04:46:52,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446231671] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:52,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:52,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:46:52,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328627513] [2023-11-19 04:46:52,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:52,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:46:52,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:52,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:46:52,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:46:52,243 INFO L87 Difference]: Start difference. First operand 161 states and 379 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:52,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:52,367 INFO L93 Difference]: Finished difference Result 260 states and 620 transitions. [2023-11-19 04:46:52,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:46:52,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-11-19 04:46:52,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:52,368 INFO L225 Difference]: With dead ends: 260 [2023-11-19 04:46:52,368 INFO L226 Difference]: Without dead ends: 121 [2023-11-19 04:46:52,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:46:52,369 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:52,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 8 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:46:52,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-19 04:46:52,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-11-19 04:46:52,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 2.275) internal successors, (273), 120 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 273 transitions. [2023-11-19 04:46:52,375 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 273 transitions. Word has length 27 [2023-11-19 04:46:52,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:52,375 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 273 transitions. [2023-11-19 04:46:52,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:52,376 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 273 transitions. [2023-11-19 04:46:52,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 04:46:52,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:52,377 INFO L195 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] [2023-11-19 04:46:52,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 04:46:52,377 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:46:52,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:52,378 INFO L85 PathProgramCache]: Analyzing trace with hash -117450700, now seen corresponding path program 2 times [2023-11-19 04:46:52,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:52,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502823855] [2023-11-19 04:46:52,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:52,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:46:52,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:46:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:46:52,521 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:46:52,521 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:46:52,522 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2023-11-19 04:46:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2023-11-19 04:46:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2023-11-19 04:46:52,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2023-11-19 04:46:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2023-11-19 04:46:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2023-11-19 04:46:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2023-11-19 04:46:52,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2023-11-19 04:46:52,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2023-11-19 04:46:52,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2023-11-19 04:46:52,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2023-11-19 04:46:52,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2023-11-19 04:46:52,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2023-11-19 04:46:52,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2023-11-19 04:46:52,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2023-11-19 04:46:52,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2023-11-19 04:46:52,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 04:46:52,531 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:52,537 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 04:46:52,538 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:46:52,597 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-19 04:46:52,599 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-19 04:46:52,600 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 04:46:52,603 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-19 04:46:52,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:46:52 BasicIcfg [2023-11-19 04:46:52,623 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:46:52,624 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:46:52,624 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:46:52,624 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:46:52,625 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:37" (3/4) ... [2023-11-19 04:46:52,627 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:46:52,628 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:46:52,629 INFO L158 Benchmark]: Toolchain (without parser) took 17524.87ms. Allocated memory was 121.6MB in the beginning and 440.4MB in the end (delta: 318.8MB). Free memory was 59.3MB in the beginning and 171.7MB in the end (delta: -112.4MB). Peak memory consumption was 209.2MB. Max. memory is 16.1GB. [2023-11-19 04:46:52,629 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 121.6MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:46:52,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 899.23ms. Allocated memory was 121.6MB in the beginning and 180.4MB in the end (delta: 58.7MB). Free memory was 59.0MB in the beginning and 129.9MB in the end (delta: -70.9MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2023-11-19 04:46:52,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.64ms. Allocated memory is still 180.4MB. Free memory was 129.9MB in the beginning and 127.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:46:52,630 INFO L158 Benchmark]: Boogie Preprocessor took 74.04ms. Allocated memory is still 180.4MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:46:52,631 INFO L158 Benchmark]: RCFGBuilder took 969.77ms. Allocated memory is still 180.4MB. Free memory was 125.0MB in the beginning and 147.1MB in the end (delta: -22.1MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2023-11-19 04:46:52,631 INFO L158 Benchmark]: TraceAbstraction took 15465.04ms. Allocated memory was 180.4MB in the beginning and 440.4MB in the end (delta: 260.0MB). Free memory was 146.0MB in the beginning and 172.7MB in the end (delta: -26.7MB). Peak memory consumption was 233.4MB. Max. memory is 16.1GB. [2023-11-19 04:46:52,631 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 440.4MB. Free memory was 172.7MB in the beginning and 171.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:46:52,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 121.6MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 899.23ms. Allocated memory was 121.6MB in the beginning and 180.4MB in the end (delta: 58.7MB). Free memory was 59.0MB in the beginning and 129.9MB in the end (delta: -70.9MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.64ms. Allocated memory is still 180.4MB. Free memory was 129.9MB in the beginning and 127.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.04ms. Allocated memory is still 180.4MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 969.77ms. Allocated memory is still 180.4MB. Free memory was 125.0MB in the beginning and 147.1MB in the end (delta: -22.1MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * TraceAbstraction took 15465.04ms. Allocated memory was 180.4MB in the beginning and 440.4MB in the end (delta: 260.0MB). Free memory was 146.0MB in the beginning and 172.7MB in the end (delta: -26.7MB). Peak memory consumption was 233.4MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 440.4MB. Free memory was 172.7MB in the beginning and 171.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 160 PlacesBefore, 55 PlacesAfterwards, 151 TransitionsBefore, 44 TransitionsAfterwards, 4176 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 85 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 150 TotalNumberOfCompositions, 9467 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4843, independent: 4651, independent conditional: 0, independent unconditional: 4651, dependent: 192, dependent conditional: 0, dependent unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2883, independent: 2830, independent conditional: 0, independent unconditional: 2830, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2883, independent: 2785, independent conditional: 0, independent unconditional: 2785, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 98, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 345, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 270, dependent conditional: 0, dependent unconditional: 270, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4843, independent: 1821, independent conditional: 0, independent unconditional: 1821, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 2883, unknown conditional: 0, unknown unconditional: 2883] , Statistics on independence cache: Total cache size (in pairs): 219, Positive cache size: 194, Positive conditional cache size: 0, Positive unconditional cache size: 194, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L725] 0 _Bool y$flush_delayed; [L726] 0 int y$mem_tmp; [L727] 0 _Bool y$r_buff0_thd0; [L728] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$r_buff0_thd2; [L730] 0 _Bool y$r_buff0_thd3; [L731] 0 _Bool y$r_buff0_thd4; [L732] 0 _Bool y$r_buff1_thd0; [L733] 0 _Bool y$r_buff1_thd1; [L734] 0 _Bool y$r_buff1_thd2; [L735] 0 _Bool y$r_buff1_thd3; [L736] 0 _Bool y$r_buff1_thd4; [L737] 0 _Bool y$read_delayed; [L738] 0 int *y$read_delayed_var; [L739] 0 int y$w_buff0; [L740] 0 _Bool y$w_buff0_used; [L741] 0 int y$w_buff1; [L742] 0 _Bool y$w_buff1_used; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L854] 0 pthread_t t717; [L855] FCALL, FORK 0 pthread_create(&t717, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t717={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L856] 0 pthread_t t718; [L857] FCALL, FORK 0 pthread_create(&t718, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t717={5:0}, t718={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L858] 0 pthread_t t719; [L859] FCALL, FORK 0 pthread_create(&t719, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t717={5:0}, t718={6:0}, t719={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L793] 3 y$w_buff1 = y$w_buff0 [L794] 3 y$w_buff0 = 1 [L795] 3 y$w_buff1_used = y$w_buff0_used [L796] 3 y$w_buff0_used = (_Bool)1 [L797] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L797] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L798] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L799] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L800] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L801] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L802] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L803] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L860] 0 pthread_t t720; [L861] FCALL, FORK 0 pthread_create(&t720, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t717={5:0}, t718={6:0}, t719={7:0}, t720={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L806] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L823] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L826] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L829] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L832] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L833] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L834] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L835] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L836] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L839] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L841] 4 return 0; [L750] 1 a = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L753] 1 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 1 return 0; [L765] 2 x = 2 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L768] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L769] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L770] 2 y$flush_delayed = weak$$choice2 [L771] 2 y$mem_tmp = y [L772] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L773] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L774] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L775] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L776] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L778] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] 2 __unbuffered_p1_EAX = y [L780] 2 y = y$flush_delayed ? y$mem_tmp : y [L781] 2 y$flush_delayed = (_Bool)0 [L786] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L788] 2 return 0; [L809] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L810] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L811] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L812] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L813] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L816] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L818] 3 return 0; [L863] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L865] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L865] RET 0 assume_abort_if_not(main$tmp_guard0) [L867] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L868] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L869] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L870] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L871] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t717={5:0}, t718={6:0}, t719={7:0}, t720={3:0}, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L874] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L876] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "mix027_power.opt_pso.opt_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 852]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 857]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 861]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 186 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 15.2s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 444 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 444 mSDsluCounter, 157 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1340 IncrementalHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 62 mSDtfsCounter, 1340 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4116occurred in iteration=0, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 2928 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 1231 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:46:52,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ --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 4f758b611596923134c7292307712c4e6636a1a24449562e0f1ec6ef2697b141 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:46:55,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:46:55,540 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 04:46:55,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:46:55,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:46:55,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:46:55,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:46:55,595 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:46:55,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:46:55,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:46:55,601 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:46:55,602 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:46:55,602 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:46:55,604 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:46:55,605 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:46:55,605 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:46:55,606 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:46:55,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:46:55,608 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:46:55,609 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:46:55,609 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:46:55,610 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:46:55,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:46:55,611 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:46:55,611 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:46:55,612 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:46:55,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:46:55,613 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:46:55,613 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:46:55,614 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:46:55,615 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:46:55,616 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:46:55,616 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:46:55,617 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:46:55,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:46:55,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:46:55,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:55,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:46:55,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:46:55,619 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:46:55,620 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:46:55,620 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:46:55,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:46:55,621 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f758b611596923134c7292307712c4e6636a1a24449562e0f1ec6ef2697b141 [2023-11-19 04:46:56,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:46:56,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:46:56,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:46:56,101 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:46:56,102 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:46:56,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i [2023-11-19 04:46:59,412 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:46:59,769 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:46:59,770 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i [2023-11-19 04:46:59,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/data/1cd2e8ecc/7f67b9f96c394cd6b5a8a564eb3edd32/FLAG77030f911 [2023-11-19 04:46:59,803 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/data/1cd2e8ecc/7f67b9f96c394cd6b5a8a564eb3edd32 [2023-11-19 04:46:59,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:46:59,808 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:46:59,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:59,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:46:59,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:46:59,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:59" (1/1) ... [2023-11-19 04:46:59,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c8fb67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:59, skipping insertion in model container [2023-11-19 04:46:59,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:59" (1/1) ... [2023-11-19 04:46:59,873 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:47:00,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:00,484 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:47:00,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:00,640 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:47:00,640 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:47:00,648 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:47:00,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00 WrapperNode [2023-11-19 04:47:00,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:00,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:00,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:47:00,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:47:00,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (1/1) ... [2023-11-19 04:47:00,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (1/1) ... [2023-11-19 04:47:00,747 INFO L138 Inliner]: procedures = 180, calls = 70, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2023-11-19 04:47:00,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:00,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:47:00,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:47:00,749 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:47:00,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (1/1) ... [2023-11-19 04:47:00,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (1/1) ... [2023-11-19 04:47:00,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (1/1) ... [2023-11-19 04:47:00,781 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (1/1) ... [2023-11-19 04:47:00,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (1/1) ... [2023-11-19 04:47:00,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (1/1) ... [2023-11-19 04:47:00,811 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (1/1) ... [2023-11-19 04:47:00,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (1/1) ... [2023-11-19 04:47:00,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:47:00,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:47:00,827 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:47:00,827 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:47:00,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (1/1) ... [2023-11-19 04:47:00,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:00,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:47:00,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:47:00,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:47:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:47:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:47:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:47:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:47:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:47:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:47:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 04:47:00,943 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 04:47:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 04:47:00,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 04:47:00,944 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 04:47:00,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 04:47:00,944 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 04:47:00,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 04:47:00,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:47:00,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:47:00,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:47:00,947 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:47:01,139 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:47:01,142 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:47:01,556 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:47:01,696 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:47:01,696 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:47:01,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:01 BoogieIcfgContainer [2023-11-19 04:47:01,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:47:01,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:47:01,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:47:01,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:47:01,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:46:59" (1/3) ... [2023-11-19 04:47:01,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da4b416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:01, skipping insertion in model container [2023-11-19 04:47:01,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:00" (2/3) ... [2023-11-19 04:47:01,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da4b416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:01, skipping insertion in model container [2023-11-19 04:47:01,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:01" (3/3) ... [2023-11-19 04:47:01,710 INFO L112 eAbstractionObserver]: Analyzing ICFG mix027_power.opt_pso.opt_rmo.opt.i [2023-11-19 04:47:01,731 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:47:01,732 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 04:47:01,732 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:47:01,822 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 04:47:01,868 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:47:01,891 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 152 transitions, 320 flow [2023-11-19 04:47:01,900 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 152 transitions, 320 flow [2023-11-19 04:47:01,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 152 transitions, 320 flow [2023-11-19 04:47:01,999 INFO L124 PetriNetUnfolderBase]: 4/148 cut-off events. [2023-11-19 04:47:02,000 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 04:47:02,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 148 events. 4/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2023-11-19 04:47:02,015 INFO L119 LiptonReduction]: Number of co-enabled transitions 4176 [2023-11-19 04:47:12,777 INFO L134 LiptonReduction]: Checked pairs total: 9351 [2023-11-19 04:47:12,778 INFO L136 LiptonReduction]: Total number of compositions: 151 [2023-11-19 04:47:12,786 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 43 transitions, 102 flow [2023-11-19 04:47:13,047 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4116 states, 4101 states have (on average 4.049743964886613) internal successors, (16608), 4115 states have internal predecessors, (16608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:13,064 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:47:13,071 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@6ce70db1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:47:13,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-19 04:47:13,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 4116 states, 4101 states have (on average 4.049743964886613) internal successors, (16608), 4115 states have internal predecessors, (16608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-19 04:47:13,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:13,097 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-19 04:47:13,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:47:13,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:13,107 INFO L85 PathProgramCache]: Analyzing trace with hash 647, now seen corresponding path program 1 times [2023-11-19 04:47:13,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:47:13,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847627151] [2023-11-19 04:47:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:13,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:47:13,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:47:13,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:47:13,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:47:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:13,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:47:13,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:47:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:13,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:47:13,245 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:47:13,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847627151] [2023-11-19 04:47:13,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847627151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:13,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:13,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 04:47:13,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183071786] [2023-11-19 04:47:13,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:13,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:47:13,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:47:13,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:47:13,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:47:13,292 INFO L87 Difference]: Start difference. First operand has 4116 states, 4101 states have (on average 4.049743964886613) internal successors, (16608), 4115 states have internal predecessors, (16608), 0 states have call successors, (0), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:13,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:13,549 INFO L93 Difference]: Finished difference Result 3882 states and 15296 transitions. [2023-11-19 04:47:13,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:47:13,552 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 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 1 [2023-11-19 04:47:13,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:13,643 INFO L225 Difference]: With dead ends: 3882 [2023-11-19 04:47:13,643 INFO L226 Difference]: Without dead ends: 3882 [2023-11-19 04:47:13,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:47:13,651 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:13,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:47:13,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3882 states. [2023-11-19 04:47:13,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3882 to 3882. [2023-11-19 04:47:14,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3882 states, 3877 states have (on average 3.945318545266959) internal successors, (15296), 3881 states have internal predecessors, (15296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:14,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 15296 transitions. [2023-11-19 04:47:14,055 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 15296 transitions. Word has length 1 [2023-11-19 04:47:14,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:14,056 INFO L495 AbstractCegarLoop]: Abstraction has 3882 states and 15296 transitions. [2023-11-19 04:47:14,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:14,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 15296 transitions. [2023-11-19 04:47:14,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:47:14,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:14,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:14,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 04:47:14,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:47:14,263 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:47:14,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:14,264 INFO L85 PathProgramCache]: Analyzing trace with hash 563612043, now seen corresponding path program 1 times [2023-11-19 04:47:14,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:47:14,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862030294] [2023-11-19 04:47:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:14,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:47:14,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:47:14,271 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:47:14,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:47:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:14,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:47:14,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:47:14,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:14,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:47:14,431 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:47:14,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862030294] [2023-11-19 04:47:14,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862030294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:14,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:14,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:47:14,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224463153] [2023-11-19 04:47:14,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:14,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:47:14,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:47:14,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:47:14,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:14,435 INFO L87 Difference]: Start difference. First operand 3882 states and 15296 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:14,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:14,663 INFO L93 Difference]: Finished difference Result 3178 states and 12368 transitions. [2023-11-19 04:47:14,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:47:14,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 04:47:14,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:14,701 INFO L225 Difference]: With dead ends: 3178 [2023-11-19 04:47:14,701 INFO L226 Difference]: Without dead ends: 3082 [2023-11-19 04:47:14,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:14,705 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:14,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 8 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:47:14,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2023-11-19 04:47:14,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 3082. [2023-11-19 04:47:15,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 3080 states have (on average 3.911688311688312) internal successors, (12048), 3081 states have internal predecessors, (12048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:15,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 12048 transitions. [2023-11-19 04:47:15,104 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 12048 transitions. Word has length 7 [2023-11-19 04:47:15,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:15,105 INFO L495 AbstractCegarLoop]: Abstraction has 3082 states and 12048 transitions. [2023-11-19 04:47:15,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:15,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 12048 transitions. [2023-11-19 04:47:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:47:15,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:15,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:15,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:47:15,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:47:15,317 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:47:15,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:15,317 INFO L85 PathProgramCache]: Analyzing trace with hash -44225677, now seen corresponding path program 1 times [2023-11-19 04:47:15,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:47:15,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683114565] [2023-11-19 04:47:15,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:15,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:47:15,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:47:15,337 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:47:15,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:47:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:15,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:47:15,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:47:15,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:15,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:47:15,580 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:47:15,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683114565] [2023-11-19 04:47:15,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683114565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:15,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:15,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:47:15,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715222504] [2023-11-19 04:47:15,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:15,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:47:15,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:47:15,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:47:15,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:15,583 INFO L87 Difference]: Start difference. First operand 3082 states and 12048 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:15,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:15,722 INFO L93 Difference]: Finished difference Result 2182 states and 7548 transitions. [2023-11-19 04:47:15,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:47:15,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2023-11-19 04:47:15,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:15,748 INFO L225 Difference]: With dead ends: 2182 [2023-11-19 04:47:15,748 INFO L226 Difference]: Without dead ends: 2182 [2023-11-19 04:47:15,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:15,750 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:15,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:47:15,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2023-11-19 04:47:15,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2182. [2023-11-19 04:47:15,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2180 states have (on average 3.4623853211009172) internal successors, (7548), 2181 states have internal predecessors, (7548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:15,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 7548 transitions. [2023-11-19 04:47:15,968 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 7548 transitions. Word has length 12 [2023-11-19 04:47:15,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:15,969 INFO L495 AbstractCegarLoop]: Abstraction has 2182 states and 7548 transitions. [2023-11-19 04:47:15,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:15,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 7548 transitions. [2023-11-19 04:47:15,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:47:15,974 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:15,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:15,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-19 04:47:16,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:47:16,177 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:47:16,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:16,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1202730739, now seen corresponding path program 1 times [2023-11-19 04:47:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:47:16,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295363932] [2023-11-19 04:47:16,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:16,179 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:47:16,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:47:16,181 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:47:16,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 04:47:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:16,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:47:16,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:47:16,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:16,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:47:16,357 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:47:16,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295363932] [2023-11-19 04:47:16,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295363932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:16,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:16,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:47:16,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064253602] [2023-11-19 04:47:16,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:16,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:47:16,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:47:16,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:47:16,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:47:16,360 INFO L87 Difference]: Start difference. First operand 2182 states and 7548 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) [2023-11-19 04:47:16,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:16,595 INFO L93 Difference]: Finished difference Result 1177 states and 3528 transitions. [2023-11-19 04:47:16,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:47:16,596 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 [2023-11-19 04:47:16,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:16,608 INFO L225 Difference]: With dead ends: 1177 [2023-11-19 04:47:16,608 INFO L226 Difference]: Without dead ends: 1177 [2023-11-19 04:47:16,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:47:16,613 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 26 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:16,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 16 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:47:16,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2023-11-19 04:47:16,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1177. [2023-11-19 04:47:16,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1175 states have (on average 3.0025531914893615) internal successors, (3528), 1176 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:47:16,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 3528 transitions. [2023-11-19 04:47:16,670 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 3528 transitions. Word has length 15 [2023-11-19 04:47:16,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:16,670 INFO L495 AbstractCegarLoop]: Abstraction has 1177 states and 3528 transitions. [2023-11-19 04:47:16,671 INFO L496 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) [2023-11-19 04:47:16,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 3528 transitions. [2023-11-19 04:47:16,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 04:47:16,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:16,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:16,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:47:16,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:47:16,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:47:16,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:16,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1822850269, now seen corresponding path program 1 times [2023-11-19 04:47:16,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:47:16,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591271406] [2023-11-19 04:47:16,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:16,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:47:16,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:47:16,888 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:47:16,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b7330e-de8c-4489-9ebd-cac5f5f3afe2/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 04:47:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:17,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 04:47:17,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:47:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:17,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:47:17,128 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:47:17,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591271406] [2023-11-19 04:47:17,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591271406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:17,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:17,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:47:17,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969168500] [2023-11-19 04:47:17,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:17,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:47:17,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:47:17,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:47:17,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:47:17,143 INFO L87 Difference]: Start difference. First operand 1177 states and 3528 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)