./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:05:39,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:05:39,642 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:05:39,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:05:39,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:05:39,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:05:39,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:05:39,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:05:39,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:05:39,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:05:39,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:05:39,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:05:39,694 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:05:39,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:05:39,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:05:39,697 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:05:39,699 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:05:39,701 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:05:39,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:05:39,702 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:05:39,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:05:39,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:05:39,704 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:05:39,704 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:05:39,704 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:05:39,705 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:05:39,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:05:39,706 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:05:39,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:05:39,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:05:39,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:05:39,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:39,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:05:39,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:05:39,710 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:05:39,711 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:05:39,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:05:39,711 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:05:39,712 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:05:39,712 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:05:39,712 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:05:39,713 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2024-10-31 22:05:40,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:05:40,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:05:40,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:05:40,095 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:05:40,096 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:05:40,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i Unable to find full path for "g++" [2024-10-31 22:05:42,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:05:42,890 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:05:42,890 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2024-10-31 22:05:42,934 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/data/3db7208a4/8d4b8563faea480cb4fd40aab6b6a20c/FLAG2f6446fd7 [2024-10-31 22:05:42,969 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/data/3db7208a4/8d4b8563faea480cb4fd40aab6b6a20c [2024-10-31 22:05:42,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:05:42,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:05:42,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:42,980 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:05:42,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:05:42,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:43,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757241cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:42, skipping insertion in model container [2024-10-31 22:05:43,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:42" (1/1) ... [2024-10-31 22:05:43,085 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:05:43,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:43,943 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:05:44,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:44,159 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:05:44,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44 WrapperNode [2024-10-31 22:05:44,159 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:44,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:44,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:05:44,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:05:44,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (1/1) ... [2024-10-31 22:05:44,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (1/1) ... [2024-10-31 22:05:44,399 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 571 [2024-10-31 22:05:44,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:44,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:05:44,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:05:44,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:05:44,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (1/1) ... [2024-10-31 22:05:44,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (1/1) ... [2024-10-31 22:05:44,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (1/1) ... [2024-10-31 22:05:44,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (1/1) ... [2024-10-31 22:05:44,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (1/1) ... [2024-10-31 22:05:44,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (1/1) ... [2024-10-31 22:05:44,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (1/1) ... [2024-10-31 22:05:44,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (1/1) ... [2024-10-31 22:05:44,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:05:44,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:05:44,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:05:44,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:05:44,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (1/1) ... [2024-10-31 22:05:44,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:44,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:44,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:05:44,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f966ded-fc62-45cd-984c-e0c3a7ad0ae3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:05:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:05:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-31 22:05:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-31 22:05:44,631 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-31 22:05:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:05:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:05:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:05:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-31 22:05:44,632 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-31 22:05:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:05:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:05:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:05:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:05:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-31 22:05:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-10-31 22:05:44,634 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-10-31 22:05:44,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:05:44,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:05:44,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:05:44,637 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:05:44,891 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:05:44,894 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:05:45,939 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:05:45,939 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:05:46,018 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:05:46,020 INFO L316 CfgBuilder]: Removed 28 assume(true) statements. [2024-10-31 22:05:46,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:46 BoogieIcfgContainer [2024-10-31 22:05:46,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:05:46,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:05:46,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:05:46,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:05:46,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:05:42" (1/3) ... [2024-10-31 22:05:46,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f578107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:46, skipping insertion in model container [2024-10-31 22:05:46,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:44" (2/3) ... [2024-10-31 22:05:46,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f578107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:46, skipping insertion in model container [2024-10-31 22:05:46,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:46" (3/3) ... [2024-10-31 22:05:46,034 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2024-10-31 22:05:46,073 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:05:46,073 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-10-31 22:05:46,073 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:05:46,297 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-10-31 22:05:46,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 569 places, 610 transitions, 1259 flow [2024-10-31 22:05:47,374 INFO L124 PetriNetUnfolderBase]: 171/1787 cut-off events. [2024-10-31 22:05:47,374 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-10-31 22:05:47,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1841 conditions, 1787 events. 171/1787 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 12510 event pairs, 0 based on Foata normal form. 0/1504 useless extension candidates. Maximal degree in co-relation 912. Up to 16 conditions per place. [2024-10-31 22:05:47,433 INFO L82 GeneralOperation]: Start removeDead. Operand has 569 places, 610 transitions, 1259 flow [2024-10-31 22:05:47,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 569 places, 610 transitions, 1259 flow [2024-10-31 22:05:47,483 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:05:47,494 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3ee1a656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:05:47,494 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-10-31 22:05:47,505 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:05:47,505 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2024-10-31 22:05:47,506 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:05:47,506 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:47,507 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:47,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-10-31 22:05:47,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:47,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1267596029, now seen corresponding path program 1 times [2024-10-31 22:05:47,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:47,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828353007] [2024-10-31 22:05:47,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:47,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:47,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:47,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:47,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828353007] [2024-10-31 22:05:47,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828353007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:47,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:47,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:47,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109231101] [2024-10-31 22:05:47,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:47,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:47,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:47,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:47,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:48,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 531 out of 610 [2024-10-31 22:05:48,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 610 transitions, 1259 flow. Second operand has 3 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:48,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:48,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 531 of 610 [2024-10-31 22:05:48,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:00,357 INFO L124 PetriNetUnfolderBase]: 5416/36133 cut-off events. [2024-10-31 22:06:00,358 INFO L125 PetriNetUnfolderBase]: For 2915/2915 co-relation queries the response was YES. [2024-10-31 22:06:00,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44378 conditions, 36133 events. 5416/36133 cut-off events. For 2915/2915 co-relation queries the response was YES. Maximal size of possible extension queue 724. Compared 510661 event pairs, 4448 based on Foata normal form. 6985/39826 useless extension candidates. Maximal degree in co-relation 29540. Up to 7149 conditions per place. [2024-10-31 22:06:01,186 INFO L140 encePairwiseOnDemand]: 575/610 looper letters, 42 selfloop transitions, 2 changer transitions 0/573 dead transitions. [2024-10-31 22:06:01,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 573 transitions, 1273 flow [2024-10-31 22:06:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:01,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1670 transitions. [2024-10-31 22:06:01,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.912568306010929 [2024-10-31 22:06:01,220 INFO L175 Difference]: Start difference. First operand has 569 places, 610 transitions, 1259 flow. Second operand 3 states and 1670 transitions. [2024-10-31 22:06:01,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 573 transitions, 1273 flow [2024-10-31 22:06:01,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 566 places, 573 transitions, 1273 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:01,250 INFO L231 Difference]: Finished difference. Result has 566 places, 573 transitions, 1189 flow [2024-10-31 22:06:01,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=610, PETRI_DIFFERENCE_MINUEND_FLOW=1185, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1189, PETRI_PLACES=566, PETRI_TRANSITIONS=573} [2024-10-31 22:06:01,260 INFO L277 CegarLoopForPetriNet]: 569 programPoint places, -3 predicate places. [2024-10-31 22:06:01,263 INFO L471 AbstractCegarLoop]: Abstraction has has 566 places, 573 transitions, 1189 flow [2024-10-31 22:06:01,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:01,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:01,266 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:01,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:01,267 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-10-31 22:06:01,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:01,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1942460582, now seen corresponding path program 1 times [2024-10-31 22:06:01,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:01,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976550451] [2024-10-31 22:06:01,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:01,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:01,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:01,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976550451] [2024-10-31 22:06:01,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976550451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:01,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:01,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:01,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902957539] [2024-10-31 22:06:01,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:01,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:01,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:01,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:01,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:01,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 529 out of 610 [2024-10-31 22:06:01,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 573 transitions, 1189 flow. Second operand has 3 states, 3 states have (on average 530.0) internal successors, (1590), 3 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:01,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:01,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 529 of 610 [2024-10-31 22:06:01,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:09,945 INFO L124 PetriNetUnfolderBase]: 4496/30101 cut-off events. [2024-10-31 22:06:09,945 INFO L125 PetriNetUnfolderBase]: For 3701/3701 co-relation queries the response was YES. [2024-10-31 22:06:10,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37559 conditions, 30101 events. 4496/30101 cut-off events. For 3701/3701 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 404104 event pairs, 3408 based on Foata normal form. 0/27415 useless extension candidates. Maximal degree in co-relation 37505. Up to 6064 conditions per place. [2024-10-31 22:06:10,478 INFO L140 encePairwiseOnDemand]: 605/610 looper letters, 42 selfloop transitions, 1 changer transitions 0/569 dead transitions. [2024-10-31 22:06:10,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 569 transitions, 1267 flow [2024-10-31 22:06:10,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:10,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:10,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1634 transitions. [2024-10-31 22:06:10,483 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.892896174863388 [2024-10-31 22:06:10,483 INFO L175 Difference]: Start difference. First operand has 566 places, 573 transitions, 1189 flow. Second operand 3 states and 1634 transitions. [2024-10-31 22:06:10,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 569 transitions, 1267 flow [2024-10-31 22:06:10,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 569 transitions, 1263 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:10,499 INFO L231 Difference]: Finished difference. Result has 562 places, 569 transitions, 1179 flow [2024-10-31 22:06:10,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=610, PETRI_DIFFERENCE_MINUEND_FLOW=1177, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=569, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=568, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1179, PETRI_PLACES=562, PETRI_TRANSITIONS=569} [2024-10-31 22:06:10,501 INFO L277 CegarLoopForPetriNet]: 569 programPoint places, -7 predicate places. [2024-10-31 22:06:10,502 INFO L471 AbstractCegarLoop]: Abstraction has has 562 places, 569 transitions, 1179 flow [2024-10-31 22:06:10,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 530.0) internal successors, (1590), 3 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:10,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:10,504 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:10,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:06:10,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-10-31 22:06:10,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:10,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2042168887, now seen corresponding path program 1 times [2024-10-31 22:06:10,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:10,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763493210] [2024-10-31 22:06:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:10,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:11,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:11,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:11,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763493210] [2024-10-31 22:06:11,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763493210] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:11,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:11,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:11,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848060677] [2024-10-31 22:06:11,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:11,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:11,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:11,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:11,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:12,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 610 [2024-10-31 22:06:12,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 569 transitions, 1179 flow. Second operand has 6 states, 6 states have (on average 421.3333333333333) internal successors, (2528), 6 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:12,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:12,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 610 [2024-10-31 22:06:12,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand