./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1 --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 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:36:11,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:36:11,759 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 08:36:11,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:36:11,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:36:11,789 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:36:11,790 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:36:11,790 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:36:11,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:36:11,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:36:11,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:36:11,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:36:11,791 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:36:11,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:36:11,791 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:36:11,791 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:36:11,791 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:36:11,792 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:36:11,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:36:11,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:36:11,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:36:11,792 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:36:11,792 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 08:36:11,792 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 08:36:11,792 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:36:11,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:36:11,792 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:36:11,792 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:36:11,793 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:36:11,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:36:11,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:36:11,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:36:11,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:36:11,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:36:11,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:36:11,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:36:11,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:36:11,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:36:11,794 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:36:11,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:36:11,794 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:36:11,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:36:11,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:36:11,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:36:11,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:36:11,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:36:11,794 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1 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 -> 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 [2024-12-02 08:36:12,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:36:12,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:36:12,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:36:12,052 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:36:12,053 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:36:12,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-12-02 08:36:14,733 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/data/849c03b13/362663729db64882a01ad9d33bc911b8/FLAG5221ad506 [2024-12-02 08:36:14,962 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:36:14,962 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-12-02 08:36:14,977 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/data/849c03b13/362663729db64882a01ad9d33bc911b8/FLAG5221ad506 [2024-12-02 08:36:14,991 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/data/849c03b13/362663729db64882a01ad9d33bc911b8 [2024-12-02 08:36:14,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:36:14,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:36:14,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:36:14,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:36:14,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:36:15,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:36:14" (1/1) ... [2024-12-02 08:36:15,001 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19db322a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15, skipping insertion in model container [2024-12-02 08:36:15,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:36:14" (1/1) ... [2024-12-02 08:36:15,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:36:15,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:36:15,403 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:36:15,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:36:15,512 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:36:15,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15 WrapperNode [2024-12-02 08:36:15,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:36:15,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:36:15,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:36:15,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:36:15,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,555 INFO L138 Inliner]: procedures = 279, calls = 68, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 332 [2024-12-02 08:36:15,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:36:15,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:36:15,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:36:15,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:36:15,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,587 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,589 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:36:15,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:36:15,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:36:15,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:36:15,607 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (1/1) ... [2024-12-02 08:36:15,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:36:15,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:36:15,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:36:15,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d880f709-074f-4e0c-a4fb-82c55c2547ca/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:36:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 08:36:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-02 08:36:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-12-02 08:36:15,658 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-12-02 08:36:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 08:36:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 08:36:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 08:36:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-12-02 08:36:15,658 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-12-02 08:36:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 08:36:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 08:36:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 08:36:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:36:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-02 08:36:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 08:36:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:36:15,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:36:15,660 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 08:36:15,792 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:36:15,794 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:36:16,302 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 08:36:16,302 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:36:16,334 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:36:16,334 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-12-02 08:36:16,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:36:16 BoogieIcfgContainer [2024-12-02 08:36:16,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:36:16,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:36:16,337 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:36:16,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:36:16,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:36:14" (1/3) ... [2024-12-02 08:36:16,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5436ed3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:36:16, skipping insertion in model container [2024-12-02 08:36:16,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:15" (2/3) ... [2024-12-02 08:36:16,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5436ed3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:36:16, skipping insertion in model container [2024-12-02 08:36:16,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:36:16" (3/3) ... [2024-12-02 08:36:16,342 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_82-list_racefree.i [2024-12-02 08:36:16,353 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:36:16,354 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_82-list_racefree.i that has 3 procedures, 340 locations, 1 initial locations, 10 loop locations, and 22 error locations. [2024-12-02 08:36:16,354 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 08:36:16,454 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-02 08:36:16,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 346 places, 365 transitions, 750 flow [2024-12-02 08:36:16,677 INFO L124 PetriNetUnfolderBase]: 54/688 cut-off events. [2024-12-02 08:36:16,679 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-12-02 08:36:16,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 688 events. 54/688 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3100 event pairs, 0 based on Foata normal form. 0/586 useless extension candidates. Maximal degree in co-relation 345. Up to 8 conditions per place. [2024-12-02 08:36:16,691 INFO L82 GeneralOperation]: Start removeDead. Operand has 346 places, 365 transitions, 750 flow [2024-12-02 08:36:16,699 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 346 places, 365 transitions, 750 flow [2024-12-02 08:36:16,705 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:36:16,715 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;@1c318850, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:36:16,715 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-12-02 08:36:16,721 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 08:36:16,721 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-12-02 08:36:16,721 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 08:36:16,721 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:36:16,722 INFO L206 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] [2024-12-02 08:36:16,722 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 34 more)] === [2024-12-02 08:36:16,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:16,727 INFO L85 PathProgramCache]: Analyzing trace with hash -756096836, now seen corresponding path program 1 times [2024-12-02 08:36:16,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:16,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545700248] [2024-12-02 08:36:16,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:16,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:16,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:36:16,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:16,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545700248] [2024-12-02 08:36:16,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545700248] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:16,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:16,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:36:16,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973513517] [2024-12-02 08:36:16,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:16,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:36:16,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:16,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:36:16,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:17,001 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 365 [2024-12-02 08:36:17,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 365 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:17,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:36:17,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 365 [2024-12-02 08:36:17,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:36:17,595 INFO L124 PetriNetUnfolderBase]: 210/2384 cut-off events. [2024-12-02 08:36:17,595 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-12-02 08:36:17,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2772 conditions, 2384 events. 210/2384 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 18177 event pairs, 158 based on Foata normal form. 306/2459 useless extension candidates. Maximal degree in co-relation 1884. Up to 333 conditions per place. [2024-12-02 08:36:17,612 INFO L140 encePairwiseOnDemand]: 345/365 looper letters, 25 selfloop transitions, 2 changer transitions 0/345 dead transitions. [2024-12-02 08:36:17,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 345 transitions, 764 flow [2024-12-02 08:36:17,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:36:17,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 08:36:17,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1002 transitions. [2024-12-02 08:36:17,629 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.915068493150685 [2024-12-02 08:36:17,630 INFO L175 Difference]: Start difference. First operand has 346 places, 365 transitions, 750 flow. Second operand 3 states and 1002 transitions. [2024-12-02 08:36:17,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 345 transitions, 764 flow [2024-12-02 08:36:17,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 345 transitions, 764 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 08:36:17,642 INFO L231 Difference]: Finished difference. Result has 345 places, 345 transitions, 714 flow [2024-12-02 08:36:17,645 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=345, PETRI_TRANSITIONS=345} [2024-12-02 08:36:17,648 INFO L279 CegarLoopForPetriNet]: 346 programPoint places, -1 predicate places. [2024-12-02 08:36:17,648 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 345 transitions, 714 flow [2024-12-02 08:36:17,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:17,649 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:36:17,649 INFO L206 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] [2024-12-02 08:36:17,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:36:17,650 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 34 more)] === [2024-12-02 08:36:17,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:17,650 INFO L85 PathProgramCache]: Analyzing trace with hash 205288630, now seen corresponding path program 1 times [2024-12-02 08:36:17,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:17,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484830986] [2024-12-02 08:36:17,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:17,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:17,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:36:17,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:17,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484830986] [2024-12-02 08:36:17,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484830986] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:17,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:17,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:36:17,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92370510] [2024-12-02 08:36:17,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:17,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:36:17,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:17,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:36:17,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:17,753 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 365 [2024-12-02 08:36:17,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 345 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 320.0) internal successors, (960), 3 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:17,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:36:17,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 365 [2024-12-02 08:36:17,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:36:18,076 INFO L124 PetriNetUnfolderBase]: 118/1988 cut-off events. [2024-12-02 08:36:18,076 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-12-02 08:36:18,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2267 conditions, 1988 events. 118/1988 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 12988 event pairs, 84 based on Foata normal form. 0/1796 useless extension candidates. Maximal degree in co-relation 2222. Up to 213 conditions per place. [2024-12-02 08:36:18,087 INFO L140 encePairwiseOnDemand]: 361/365 looper letters, 24 selfloop transitions, 1 changer transitions 0/342 dead transitions. [2024-12-02 08:36:18,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 342 transitions, 758 flow [2024-12-02 08:36:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:36:18,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 08:36:18,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 985 transitions. [2024-12-02 08:36:18,089 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8995433789954338 [2024-12-02 08:36:18,089 INFO L175 Difference]: Start difference. First operand has 345 places, 345 transitions, 714 flow. Second operand 3 states and 985 transitions. [2024-12-02 08:36:18,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 342 transitions, 758 flow [2024-12-02 08:36:18,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 342 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 08:36:18,095 INFO L231 Difference]: Finished difference. Result has 342 places, 342 transitions, 706 flow [2024-12-02 08:36:18,095 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=342, PETRI_TRANSITIONS=342} [2024-12-02 08:36:18,096 INFO L279 CegarLoopForPetriNet]: 346 programPoint places, -4 predicate places. [2024-12-02 08:36:18,096 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 342 transitions, 706 flow [2024-12-02 08:36:18,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 320.0) internal successors, (960), 3 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:18,096 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:36:18,097 INFO L206 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] [2024-12-02 08:36:18,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:36:18,097 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 34 more)] === [2024-12-02 08:36:18,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:18,097 INFO L85 PathProgramCache]: Analyzing trace with hash 629287774, now seen corresponding path program 1 times [2024-12-02 08:36:18,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:18,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950629657] [2024-12-02 08:36:18,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:18,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:18,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:36:18,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:18,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950629657] [2024-12-02 08:36:18,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950629657] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:18,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:18,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:36:18,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436386693] [2024-12-02 08:36:18,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:18,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:36:18,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:18,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:36:18,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:36:19,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 365 [2024-12-02 08:36:19,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 342 transitions, 706 flow. Second operand has 6 states, 6 states have (on average 255.33333333333334) internal successors, (1532), 6 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:19,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:36:19,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 365 [2024-12-02 08:36:19,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:36:26,528 INFO L124 PetriNetUnfolderBase]: 23459/62066 cut-off events. [2024-12-02 08:36:26,528 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-12-02 08:36:26,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97997 conditions, 62066 events. 23459/62066 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1082. Compared 725627 event pairs, 22570 based on Foata normal form. 0/57845 useless extension candidates. Maximal degree in co-relation 97953. Up to 35743 conditions per place. [2024-12-02 08:36:26,787 INFO L140 encePairwiseOnDemand]: 359/365 looper letters, 87 selfloop transitions, 5 changer transitions 0/341 dead transitions. [2024-12-02 08:36:26,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 341 transitions, 888 flow [2024-12-02 08:36:26,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:36:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 08:36:26,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1617 transitions. [2024-12-02 08:36:26,793 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7383561643835617 [2024-12-02 08:36:26,793 INFO L175 Difference]: Start difference. First operand has 342 places, 342 transitions, 706 flow. Second operand 6 states and 1617 transitions. [2024-12-02 08:36:26,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 341 transitions, 888 flow [2024-12-02 08:36:26,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 341 transitions, 887 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 08:36:26,804 INFO L231 Difference]: Finished difference. Result has 345 places, 341 transitions, 713 flow [2024-12-02 08:36:26,804 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=713, PETRI_PLACES=345, PETRI_TRANSITIONS=341} [2024-12-02 08:36:26,805 INFO L279 CegarLoopForPetriNet]: 346 programPoint places, -1 predicate places. [2024-12-02 08:36:26,805 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 341 transitions, 713 flow [2024-12-02 08:36:26,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 255.33333333333334) internal successors, (1532), 6 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:26,807 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:36:26,807 INFO L206 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] [2024-12-02 08:36:26,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:36:26,808 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-12-02 08:36:26,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:26,808 INFO L85 PathProgramCache]: Analyzing trace with hash -767176786, now seen corresponding path program 1 times [2024-12-02 08:36:26,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:26,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477473766] [2024-12-02 08:36:26,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:26,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:27,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:36:27,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:27,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477473766] [2024-12-02 08:36:27,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477473766] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:27,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:27,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:36:27,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418769486] [2024-12-02 08:36:27,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:27,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:36:27,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:27,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:36:27,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:36:27,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 365 [2024-12-02 08:36:27,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 341 transitions, 713 flow. Second operand has 6 states, 6 states have (on average 255.33333333333334) internal successors, (1532), 6 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:27,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:36:27,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 365 [2024-12-02 08:36:27,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:36:34,268 INFO L124 PetriNetUnfolderBase]: 23473/62610 cut-off events. [2024-12-02 08:36:34,269 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-12-02 08:36:34,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98508 conditions, 62610 events. 23473/62610 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1082. Compared 735885 event pairs, 22570 based on Foata normal form. 0/58352 useless extension candidates. Maximal degree in co-relation 98464. Up to 35705 conditions per place. [2024-12-02 08:36:34,528 INFO L140 encePairwiseOnDemand]: 359/365 looper letters, 87 selfloop transitions, 5 changer transitions 0/340 dead transitions. [2024-12-02 08:36:34,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 340 transitions, 895 flow [2024-12-02 08:36:34,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:36:34,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 08:36:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1617 transitions. [2024-12-02 08:36:34,533 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7383561643835617 [2024-12-02 08:36:34,533 INFO L175 Difference]: Start difference. First operand has 345 places, 341 transitions, 713 flow. Second operand 6 states and 1617 transitions. [2024-12-02 08:36:34,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 340 transitions, 895 flow [2024-12-02 08:36:34,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 340 transitions, 885 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 08:36:34,541 INFO L231 Difference]: Finished difference. Result has 344 places, 340 transitions, 711 flow [2024-12-02 08:36:34,542 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=711, PETRI_PLACES=344, PETRI_TRANSITIONS=340} [2024-12-02 08:36:34,543 INFO L279 CegarLoopForPetriNet]: 346 programPoint places, -2 predicate places. [2024-12-02 08:36:34,543 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 340 transitions, 711 flow [2024-12-02 08:36:34,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 255.33333333333334) internal successors, (1532), 6 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:34,544 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:36:34,544 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:34,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:36:34,544 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-12-02 08:36:34,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:34,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1153554698, now seen corresponding path program 1 times [2024-12-02 08:36:34,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:34,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804785068] [2024-12-02 08:36:34,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:34,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:35,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:36:35,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:35,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804785068] [2024-12-02 08:36:35,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804785068] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:35,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:35,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:36:35,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682098144] [2024-12-02 08:36:35,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:35,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:36:35,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:35,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:36:35,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:36:35,559 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 365 [2024-12-02 08:36:35,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 340 transitions, 711 flow. Second operand has 6 states, 6 states have (on average 249.83333333333334) internal successors, (1499), 6 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:35,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:36:35,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 365 [2024-12-02 08:36:35,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:36:44,286 INFO L124 PetriNetUnfolderBase]: 27419/72524 cut-off events. [2024-12-02 08:36:44,286 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-12-02 08:36:44,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114448 conditions, 72524 events. 27419/72524 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1363. Compared 881810 event pairs, 26131 based on Foata normal form. 0/67523 useless extension candidates. Maximal degree in co-relation 114403. Up to 41583 conditions per place. [2024-12-02 08:36:44,546 INFO L140 encePairwiseOnDemand]: 338/365 looper letters, 107 selfloop transitions, 86 changer transitions 0/433 dead transitions. [2024-12-02 08:36:44,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 433 transitions, 1283 flow [2024-12-02 08:36:44,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:36:44,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 08:36:44,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1676 transitions. [2024-12-02 08:36:44,550 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.765296803652968 [2024-12-02 08:36:44,550 INFO L175 Difference]: Start difference. First operand has 344 places, 340 transitions, 711 flow. Second operand 6 states and 1676 transitions. [2024-12-02 08:36:44,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 433 transitions, 1283 flow [2024-12-02 08:36:44,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 433 transitions, 1273 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 08:36:44,565 INFO L231 Difference]: Finished difference. Result has 349 places, 425 transitions, 1267 flow [2024-12-02 08:36:44,566 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1267, PETRI_PLACES=349, PETRI_TRANSITIONS=425} [2024-12-02 08:36:44,566 INFO L279 CegarLoopForPetriNet]: 346 programPoint places, 3 predicate places. [2024-12-02 08:36:44,566 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 425 transitions, 1267 flow [2024-12-02 08:36:44,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 249.83333333333334) internal successors, (1499), 6 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:44,568 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:36:44,568 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:44,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:36:44,568 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-12-02 08:36:44,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:44,569 INFO L85 PathProgramCache]: Analyzing trace with hash 813464778, now seen corresponding path program 1 times [2024-12-02 08:36:44,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:44,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005449025] [2024-12-02 08:36:44,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:44,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:44,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 08:36:44,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:44,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005449025] [2024-12-02 08:36:44,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005449025] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:44,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:44,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:36:44,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924818006] [2024-12-02 08:36:44,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:44,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:36:44,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:44,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:36:44,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:44,668 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 365 [2024-12-02 08:36:44,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 425 transitions, 1267 flow. Second operand has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:44,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:36:44,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 365 [2024-12-02 08:36:44,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:36:45,181 INFO L124 PetriNetUnfolderBase]: 329/2472 cut-off events. [2024-12-02 08:36:45,181 INFO L125 PetriNetUnfolderBase]: For 211/216 co-relation queries the response was YES. [2024-12-02 08:36:45,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3435 conditions, 2472 events. 329/2472 cut-off events. For 211/216 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 17971 event pairs, 114 based on Foata normal form. 1/2278 useless extension candidates. Maximal degree in co-relation 3386. Up to 251 conditions per place. [2024-12-02 08:36:45,201 INFO L140 encePairwiseOnDemand]: 362/365 looper letters, 24 selfloop transitions, 3 changer transitions 0/427 dead transitions. [2024-12-02 08:36:45,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 427 transitions, 1325 flow [2024-12-02 08:36:45,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:36:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 08:36:45,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 996 transitions. [2024-12-02 08:36:45,204 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9095890410958904 [2024-12-02 08:36:45,204 INFO L175 Difference]: Start difference. First operand has 349 places, 425 transitions, 1267 flow. Second operand 3 states and 996 transitions. [2024-12-02 08:36:45,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 427 transitions, 1325 flow [2024-12-02 08:36:45,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 427 transitions, 1325 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 08:36:45,214 INFO L231 Difference]: Finished difference. Result has 352 places, 425 transitions, 1278 flow [2024-12-02 08:36:45,214 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=1267, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1278, PETRI_PLACES=352, PETRI_TRANSITIONS=425} [2024-12-02 08:36:45,215 INFO L279 CegarLoopForPetriNet]: 346 programPoint places, 6 predicate places. [2024-12-02 08:36:45,215 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 425 transitions, 1278 flow [2024-12-02 08:36:45,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:45,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:36:45,216 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:45,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:36:45,216 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-12-02 08:36:45,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:45,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1545552450, now seen corresponding path program 1 times [2024-12-02 08:36:45,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:45,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481251402] [2024-12-02 08:36:45,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:45,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:36:45,249 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:36:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:36:45,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 08:36:45,297 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 08:36:45,298 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-12-02 08:36:45,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-12-02 08:36:45,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-12-02 08:36:45,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-12-02 08:36:45,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-12-02 08:36:45,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-12-02 08:36:45,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-12-02 08:36:45,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-12-02 08:36:45,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-12-02 08:36:45,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-12-02 08:36:45,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-12-02 08:36:45,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-12-02 08:36:45,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-12-02 08:36:45,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-12-02 08:36:45,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-12-02 08:36:45,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-12-02 08:36:45,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-12-02 08:36:45,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 38 remaining) [2024-12-02 08:36:45,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-12-02 08:36:45,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-12-02 08:36:45,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-12-02 08:36:45,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-12-02 08:36:45,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-12-02 08:36:45,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-12-02 08:36:45,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-12-02 08:36:45,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-12-02 08:36:45,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-12-02 08:36:45,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-12-02 08:36:45,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-12-02 08:36:45,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-12-02 08:36:45,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-12-02 08:36:45,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-12-02 08:36:45,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-12-02 08:36:45,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-12-02 08:36:45,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-12-02 08:36:45,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-12-02 08:36:45,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-12-02 08:36:45,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-12-02 08:36:45,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:36:45,304 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:45,307 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 08:36:45,307 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 08:36:45,418 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-12-02 08:36:45,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 553 places, 588 transitions, 1220 flow [2024-12-02 08:36:45,847 INFO L124 PetriNetUnfolderBase]: 197/1961 cut-off events. [2024-12-02 08:36:45,847 INFO L125 PetriNetUnfolderBase]: For 72/90 co-relation queries the response was YES. [2024-12-02 08:36:45,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2050 conditions, 1961 events. 197/1961 cut-off events. For 72/90 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 13407 event pairs, 2 based on Foata normal form. 0/1655 useless extension candidates. Maximal degree in co-relation 1221. Up to 32 conditions per place. [2024-12-02 08:36:45,878 INFO L82 GeneralOperation]: Start removeDead. Operand has 553 places, 588 transitions, 1220 flow [2024-12-02 08:36:45,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 553 places, 588 transitions, 1220 flow [2024-12-02 08:36:45,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:36:45,903 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;@1c318850, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:36:45,903 INFO L334 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2024-12-02 08:36:45,906 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 08:36:45,906 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-12-02 08:36:45,906 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 08:36:45,906 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:36:45,906 INFO L206 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] [2024-12-02 08:36:45,906 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 48 more)] === [2024-12-02 08:36:45,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash 975711686, now seen corresponding path program 1 times [2024-12-02 08:36:45,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:45,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085251223] [2024-12-02 08:36:45,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:45,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:45,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:36:45,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:45,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085251223] [2024-12-02 08:36:45,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085251223] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:45,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:45,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:36:45,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626542858] [2024-12-02 08:36:45,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:45,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:36:45,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:45,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:36:45,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:45,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 508 out of 588 [2024-12-02 08:36:45,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 588 transitions, 1220 flow. Second operand has 3 states, 3 states have (on average 509.3333333333333) internal successors, (1528), 3 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:45,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:36:45,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 508 of 588 [2024-12-02 08:36:45,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:37:18,769 INFO L124 PetriNetUnfolderBase]: 32332/166791 cut-off events. [2024-12-02 08:37:18,769 INFO L125 PetriNetUnfolderBase]: For 14903/14903 co-relation queries the response was YES. [2024-12-02 08:37:20,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212839 conditions, 166791 events. 32332/166791 cut-off events. For 14903/14903 co-relation queries the response was YES. Maximal size of possible extension queue 2796. Compared 2808598 event pairs, 28344 based on Foata normal form. 28069/180657 useless extension candidates. Maximal degree in co-relation 64401. Up to 40533 conditions per place. [2024-12-02 08:37:21,207 INFO L140 encePairwiseOnDemand]: 555/588 looper letters, 45 selfloop transitions, 2 changer transitions 0/553 dead transitions. [2024-12-02 08:37:21,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 553 transitions, 1244 flow [2024-12-02 08:37:21,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:37:21,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 08:37:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1602 transitions. [2024-12-02 08:37:21,210 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9081632653061225 [2024-12-02 08:37:21,211 INFO L175 Difference]: Start difference. First operand has 553 places, 588 transitions, 1220 flow. Second operand 3 states and 1602 transitions. [2024-12-02 08:37:21,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 553 transitions, 1244 flow [2024-12-02 08:37:21,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 553 transitions, 1244 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 08:37:21,221 INFO L231 Difference]: Finished difference. Result has 550 places, 553 transitions, 1154 flow [2024-12-02 08:37:21,222 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=1150, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1154, PETRI_PLACES=550, PETRI_TRANSITIONS=553} [2024-12-02 08:37:21,222 INFO L279 CegarLoopForPetriNet]: 553 programPoint places, -3 predicate places. [2024-12-02 08:37:21,223 INFO L471 AbstractCegarLoop]: Abstraction has has 550 places, 553 transitions, 1154 flow [2024-12-02 08:37:21,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 509.3333333333333) internal successors, (1528), 3 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:21,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:37:21,224 INFO L206 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] [2024-12-02 08:37:21,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:37:21,224 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 48 more)] === [2024-12-02 08:37:21,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:21,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1839689536, now seen corresponding path program 1 times [2024-12-02 08:37:21,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:21,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675621500] [2024-12-02 08:37:21,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:21,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:21,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:37:21,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:21,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675621500] [2024-12-02 08:37:21,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675621500] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:21,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:21,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:37:21,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51121424] [2024-12-02 08:37:21,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:21,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:37:21,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:21,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:37:21,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:37:21,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 588 [2024-12-02 08:37:21,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 553 transitions, 1154 flow. Second operand has 3 states, 3 states have (on average 505.0) internal successors, (1515), 3 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:21,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:37:21,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 588 [2024-12-02 08:37:21,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:37:59,257 INFO L124 PetriNetUnfolderBase]: 30716/193567 cut-off events. [2024-12-02 08:37:59,257 INFO L125 PetriNetUnfolderBase]: For 24414/24414 co-relation queries the response was YES. [2024-12-02 08:38:01,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242723 conditions, 193567 events. 30716/193567 cut-off events. For 24414/24414 co-relation queries the response was YES. Maximal size of possible extension queue 2767. Compared 3377377 event pairs, 26817 based on Foata normal form. 0/175461 useless extension candidates. Maximal degree in co-relation 242676. Up to 40142 conditions per place. [2024-12-02 08:38:02,192 INFO L140 encePairwiseOnDemand]: 582/588 looper letters, 46 selfloop transitions, 1 changer transitions 0/548 dead transitions. [2024-12-02 08:38:02,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 548 transitions, 1238 flow [2024-12-02 08:38:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:38:02,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 08:38:02,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1564 transitions. [2024-12-02 08:38:02,195 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8866213151927438 [2024-12-02 08:38:02,195 INFO L175 Difference]: Start difference. First operand has 550 places, 553 transitions, 1154 flow. Second operand 3 states and 1564 transitions. [2024-12-02 08:38:02,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 548 transitions, 1238 flow [2024-12-02 08:38:02,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 548 transitions, 1234 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 08:38:02,509 INFO L231 Difference]: Finished difference. Result has 545 places, 548 transitions, 1142 flow [2024-12-02 08:38:02,509 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1142, PETRI_PLACES=545, PETRI_TRANSITIONS=548} [2024-12-02 08:38:02,510 INFO L279 CegarLoopForPetriNet]: 553 programPoint places, -8 predicate places. [2024-12-02 08:38:02,510 INFO L471 AbstractCegarLoop]: Abstraction has has 545 places, 548 transitions, 1142 flow [2024-12-02 08:38:02,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 505.0) internal successors, (1515), 3 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:02,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:38:02,511 INFO L206 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] [2024-12-02 08:38:02,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:38:02,511 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 48 more)] === [2024-12-02 08:38:02,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:02,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1657360296, now seen corresponding path program 1 times [2024-12-02 08:38:02,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:38:02,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111954316] [2024-12-02 08:38:02,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:02,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:38:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:02,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:38:02,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:38:02,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111954316] [2024-12-02 08:38:02,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111954316] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:38:02,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:38:02,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:38:02,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320535386] [2024-12-02 08:38:02,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:38:02,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:38:02,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:38:02,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:38:02,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:38:03,371 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 397 out of 588 [2024-12-02 08:38:03,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 548 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 398.3333333333333) internal successors, (2390), 6 states have internal predecessors, (2390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:03,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:38:03,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 397 of 588 [2024-12-02 08:38:03,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand