./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.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_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB --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 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:02:37,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:02:37,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 05:02:37,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:02:37,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:02:37,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:02:37,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:02:37,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:02:37,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:02:37,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:02:37,139 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:02:37,139 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:02:37,139 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:02:37,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:02:37,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:02:37,139 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:02:37,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:02:37,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:02:37,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:02:37,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:02:37,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:02:37,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:02:37,140 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 05:02:37,140 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:02:37,140 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:02:37,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:02:37,140 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:02:37,141 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:02:37,141 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:02:37,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:02:37,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:02:37,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:02:37,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:02:37,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:02:37,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:02:37,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:02:37,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:02:37,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:02:37,142 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:02:37,142 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:02:37,142 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:02:37,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:02:37,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:02:37,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:02:37,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:02:37,142 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:02:37,142 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_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 [2024-11-28 05:02:37,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:02:37,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:02:37,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:02:37,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:02:37,441 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:02:37,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i [2024-11-28 05:02:40,986 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/data/ebde341d7/6deda1c115ec4ccd985b4495756dedc8/FLAG8f8ea760a [2024-11-28 05:02:41,550 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:02:41,551 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i [2024-11-28 05:02:41,585 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/data/ebde341d7/6deda1c115ec4ccd985b4495756dedc8/FLAG8f8ea760a [2024-11-28 05:02:41,612 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/data/ebde341d7/6deda1c115ec4ccd985b4495756dedc8 [2024-11-28 05:02:41,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:02:41,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:02:41,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:02:41,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:02:41,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:02:41,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:02:41" (1/1) ... [2024-11-28 05:02:41,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a229a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:41, skipping insertion in model container [2024-11-28 05:02:41,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:02:41" (1/1) ... [2024-11-28 05:02:41,710 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:02:42,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:02:42,342 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:02:42,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:02:42,511 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:02:42,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42 WrapperNode [2024-11-28 05:02:42,512 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:02:42,513 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:02:42,513 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:02:42,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:02:42,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,602 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 287 [2024-11-28 05:02:42,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:02:42,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:02:42,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:02:42,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:02:42,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,620 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,639 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,655 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:02:42,672 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:02:42,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:02:42,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:02:42,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (1/1) ... [2024-11-28 05:02:42,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:02:42,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:42,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:02:42,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ce8f81f-cc99-4f82-8d66-410246379a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:02:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:02:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:02:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 05:02:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 05:02:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 05:02:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 05:02:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:02:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 05:02:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 05:02:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 05:02:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:02:42,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:02:42,771 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 05:02:42,975 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:02:42,978 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:02:43,830 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 05:02:43,830 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:02:43,914 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:02:43,918 INFO L312 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-28 05:02:43,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:02:43 BoogieIcfgContainer [2024-11-28 05:02:43,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:02:43,922 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:02:43,925 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:02:43,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:02:43,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:02:41" (1/3) ... [2024-11-28 05:02:43,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1656bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:02:43, skipping insertion in model container [2024-11-28 05:02:43,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:42" (2/3) ... [2024-11-28 05:02:43,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1656bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:02:43, skipping insertion in model container [2024-11-28 05:02:43,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:02:43" (3/3) ... [2024-11-28 05:02:43,940 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_78-equ_racing.i [2024-11-28 05:02:43,963 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:02:43,965 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_78-equ_racing.i that has 2 procedures, 268 locations, 1 initial locations, 12 loop locations, and 12 error locations. [2024-11-28 05:02:43,966 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 05:02:44,182 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 05:02:44,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 299 transitions, 605 flow [2024-11-28 05:02:44,548 INFO L124 PetriNetUnfolderBase]: 46/428 cut-off events. [2024-11-28 05:02:44,554 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 05:02:44,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 428 events. 46/428 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1733 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 232. Up to 8 conditions per place. [2024-11-28 05:02:44,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 271 places, 299 transitions, 605 flow [2024-11-28 05:02:44,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 297 transitions, 601 flow [2024-11-28 05:02:44,610 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:02:44,632 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;@21692b51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:02:44,632 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-28 05:02:44,669 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:02:44,669 INFO L124 PetriNetUnfolderBase]: 6/97 cut-off events. [2024-11-28 05:02:44,671 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:02:44,671 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:44,672 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] [2024-11-28 05:02:44,675 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 05:02:44,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:44,685 INFO L85 PathProgramCache]: Analyzing trace with hash 636827231, now seen corresponding path program 1 times [2024-11-28 05:02:44,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:44,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273065789] [2024-11-28 05:02:44,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:44,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:02:46,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:46,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273065789] [2024-11-28 05:02:46,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273065789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:46,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:46,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:02:46,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22511128] [2024-11-28 05:02:46,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:46,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:02:46,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:46,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:02:46,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:02:47,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 299 [2024-11-28 05:02:47,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 297 transitions, 601 flow. Second operand has 6 states, 6 states have (on average 196.5) internal successors, (1179), 6 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:02:47,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:47,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 299 [2024-11-28 05:02:47,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:02:49,162 INFO L124 PetriNetUnfolderBase]: 1365/5236 cut-off events. [2024-11-28 05:02:49,162 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 05:02:49,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8008 conditions, 5236 events. 1365/5236 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 46503 event pairs, 997 based on Foata normal form. 732/5500 useless extension candidates. Maximal degree in co-relation 7752. Up to 2548 conditions per place. [2024-11-28 05:02:49,205 INFO L140 encePairwiseOnDemand]: 246/299 looper letters, 107 selfloop transitions, 86 changer transitions 0/384 dead transitions. [2024-11-28 05:02:49,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 384 transitions, 1161 flow [2024-11-28 05:02:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:02:49,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:02:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1438 transitions. [2024-11-28 05:02:49,236 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8015607580824972 [2024-11-28 05:02:49,240 INFO L175 Difference]: Start difference. First operand has 270 places, 297 transitions, 601 flow. Second operand 6 states and 1438 transitions. [2024-11-28 05:02:49,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 384 transitions, 1161 flow [2024-11-28 05:02:49,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 384 transitions, 1161 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 05:02:49,386 INFO L231 Difference]: Finished difference. Result has 276 places, 352 transitions, 1107 flow [2024-11-28 05:02:49,392 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1107, PETRI_PLACES=276, PETRI_TRANSITIONS=352} [2024-11-28 05:02:49,399 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, 6 predicate places. [2024-11-28 05:02:49,401 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 352 transitions, 1107 flow [2024-11-28 05:02:49,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.5) internal successors, (1179), 6 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:02:49,402 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:49,402 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] [2024-11-28 05:02:49,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:02:49,403 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 05:02:49,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:49,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1688298422, now seen corresponding path program 1 times [2024-11-28 05:02:49,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:49,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81034647] [2024-11-28 05:02:49,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:49,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:49,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:02:49,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:49,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81034647] [2024-11-28 05:02:49,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81034647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:49,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:49,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:02:49,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911829224] [2024-11-28 05:02:49,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:49,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:49,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:49,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:49,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:49,541 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 299 [2024-11-28 05:02:49,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 352 transitions, 1107 flow. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:02:49,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:49,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 299 [2024-11-28 05:02:49,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:02:49,969 INFO L124 PetriNetUnfolderBase]: 265/1917 cut-off events. [2024-11-28 05:02:49,969 INFO L125 PetriNetUnfolderBase]: For 149/165 co-relation queries the response was YES. [2024-11-28 05:02:49,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2808 conditions, 1917 events. 265/1917 cut-off events. For 149/165 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14771 event pairs, 77 based on Foata normal form. 1/1768 useless extension candidates. Maximal degree in co-relation 2671. Up to 235 conditions per place. [2024-11-28 05:02:49,984 INFO L140 encePairwiseOnDemand]: 296/299 looper letters, 30 selfloop transitions, 3 changer transitions 0/360 dead transitions. [2024-11-28 05:02:49,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 360 transitions, 1189 flow [2024-11-28 05:02:49,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:49,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:02:49,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 774 transitions. [2024-11-28 05:02:49,988 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.862876254180602 [2024-11-28 05:02:49,988 INFO L175 Difference]: Start difference. First operand has 276 places, 352 transitions, 1107 flow. Second operand 3 states and 774 transitions. [2024-11-28 05:02:49,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 360 transitions, 1189 flow [2024-11-28 05:02:50,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 360 transitions, 1189 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 05:02:50,017 INFO L231 Difference]: Finished difference. Result has 279 places, 352 transitions, 1118 flow [2024-11-28 05:02:50,018 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1118, PETRI_PLACES=279, PETRI_TRANSITIONS=352} [2024-11-28 05:02:50,019 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, 9 predicate places. [2024-11-28 05:02:50,019 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 352 transitions, 1118 flow [2024-11-28 05:02:50,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:02:50,020 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:50,020 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] [2024-11-28 05:02:50,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:02:50,021 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 05:02:50,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:50,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1410376974, now seen corresponding path program 1 times [2024-11-28 05:02:50,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:50,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016577843] [2024-11-28 05:02:50,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:50,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:02:50,096 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:02:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:02:50,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 05:02:50,181 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:02:50,182 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-28 05:02:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-28 05:02:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-28 05:02:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-28 05:02:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-28 05:02:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-28 05:02:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-28 05:02:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-28 05:02:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-28 05:02:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-28 05:02:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-28 05:02:50,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-28 05:02:50,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-28 05:02:50,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-28 05:02:50,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-28 05:02:50,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-28 05:02:50,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-28 05:02:50,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-28 05:02:50,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:02:50,193 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 05:02:50,198 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 05:02:50,198 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 05:02:50,307 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 05:02:50,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 401 transitions, 818 flow [2024-11-28 05:02:50,547 INFO L124 PetriNetUnfolderBase]: 77/687 cut-off events. [2024-11-28 05:02:50,548 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 05:02:50,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 687 events. 77/687 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3324 event pairs, 0 based on Foata normal form. 0/574 useless extension candidates. Maximal degree in co-relation 430. Up to 12 conditions per place. [2024-11-28 05:02:50,554 INFO L82 GeneralOperation]: Start removeDead. Operand has 361 places, 401 transitions, 818 flow [2024-11-28 05:02:50,565 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 360 places, 399 transitions, 814 flow [2024-11-28 05:02:50,566 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:02:50,568 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;@21692b51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:02:50,569 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-28 05:02:50,582 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:02:50,585 INFO L124 PetriNetUnfolderBase]: 6/97 cut-off events. [2024-11-28 05:02:50,585 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:02:50,585 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:50,585 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] [2024-11-28 05:02:50,585 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 05:02:50,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:50,586 INFO L85 PathProgramCache]: Analyzing trace with hash -252970401, now seen corresponding path program 1 times [2024-11-28 05:02:50,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:50,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099022469] [2024-11-28 05:02:50,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:50,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:51,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:02:51,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:51,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099022469] [2024-11-28 05:02:51,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099022469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:51,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:51,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:02:51,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680678029] [2024-11-28 05:02:51,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:51,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:02:51,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:51,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:02:51,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:02:51,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 401 [2024-11-28 05:02:51,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 399 transitions, 814 flow. Second operand has 6 states, 6 states have (on average 255.5) internal successors, (1533), 6 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:02:51,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:51,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 401 [2024-11-28 05:02:51,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:03:21,846 INFO L124 PetriNetUnfolderBase]: 83151/197368 cut-off events. [2024-11-28 05:03:21,847 INFO L125 PetriNetUnfolderBase]: For 1038/1038 co-relation queries the response was YES. [2024-11-28 05:03:22,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322583 conditions, 197368 events. 83151/197368 cut-off events. For 1038/1038 co-relation queries the response was YES. Maximal size of possible extension queue 3622. Compared 2601302 event pairs, 59498 based on Foata normal form. 36297/220322 useless extension candidates. Maximal degree in co-relation 214283. Up to 117106 conditions per place. [2024-11-28 05:03:23,188 INFO L140 encePairwiseOnDemand]: 316/401 looper letters, 170 selfloop transitions, 166 changer transitions 0/585 dead transitions. [2024-11-28 05:03:23,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 585 transitions, 1863 flow [2024-11-28 05:03:23,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:03:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:03:23,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1995 transitions. [2024-11-28 05:03:23,204 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8291770573566085 [2024-11-28 05:03:23,204 INFO L175 Difference]: Start difference. First operand has 360 places, 399 transitions, 814 flow. Second operand 6 states and 1995 transitions. [2024-11-28 05:03:23,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 585 transitions, 1863 flow [2024-11-28 05:03:23,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 585 transitions, 1863 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 05:03:23,240 INFO L231 Difference]: Finished difference. Result has 364 places, 520 transitions, 1812 flow [2024-11-28 05:03:23,241 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1812, PETRI_PLACES=364, PETRI_TRANSITIONS=520} [2024-11-28 05:03:23,244 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, 4 predicate places. [2024-11-28 05:03:23,244 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 520 transitions, 1812 flow [2024-11-28 05:03:23,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 255.5) internal successors, (1533), 6 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:03:23,246 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:03:23,246 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] [2024-11-28 05:03:23,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:03:23,247 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 05:03:23,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:23,248 INFO L85 PathProgramCache]: Analyzing trace with hash -565649750, now seen corresponding path program 1 times [2024-11-28 05:03:23,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:23,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179214227] [2024-11-28 05:03:23,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:23,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:23,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:03:23,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:23,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179214227] [2024-11-28 05:03:23,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179214227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:23,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:03:23,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:03:23,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352973498] [2024-11-28 05:03:23,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:23,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:03:23,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:23,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:03:23,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:03:23,413 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 401 [2024-11-28 05:03:23,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 520 transitions, 1812 flow. Second operand has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:03:23,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:03:23,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 401 [2024-11-28 05:03:23,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:03:35,029 INFO L124 PetriNetUnfolderBase]: 20082/75776 cut-off events. [2024-11-28 05:03:35,030 INFO L125 PetriNetUnfolderBase]: For 8127/8827 co-relation queries the response was YES. [2024-11-28 05:03:35,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124103 conditions, 75776 events. 20082/75776 cut-off events. For 8127/8827 co-relation queries the response was YES. Maximal size of possible extension queue 1558. Compared 1072715 event pairs, 10710 based on Foata normal form. 1/68662 useless extension candidates. Maximal degree in co-relation 55978. Up to 22916 conditions per place. [2024-11-28 05:03:35,640 INFO L140 encePairwiseOnDemand]: 398/401 looper letters, 42 selfloop transitions, 3 changer transitions 0/530 dead transitions. [2024-11-28 05:03:35,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 530 transitions, 1928 flow [2024-11-28 05:03:35,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:03:35,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:03:35,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1022 transitions. [2024-11-28 05:03:35,644 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8495428096425602 [2024-11-28 05:03:35,644 INFO L175 Difference]: Start difference. First operand has 364 places, 520 transitions, 1812 flow. Second operand 3 states and 1022 transitions. [2024-11-28 05:03:35,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 530 transitions, 1928 flow [2024-11-28 05:03:35,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 530 transitions, 1928 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 05:03:35,884 INFO L231 Difference]: Finished difference. Result has 367 places, 522 transitions, 1837 flow [2024-11-28 05:03:35,885 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=1812, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1837, PETRI_PLACES=367, PETRI_TRANSITIONS=522} [2024-11-28 05:03:35,885 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, 7 predicate places. [2024-11-28 05:03:35,886 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 522 transitions, 1837 flow [2024-11-28 05:03:35,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:03:35,887 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:03:35,887 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, 1, 1, 1, 1] [2024-11-28 05:03:35,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:03:35,887 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 05:03:35,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:35,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2033424109, now seen corresponding path program 1 times [2024-11-28 05:03:35,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:35,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443263994] [2024-11-28 05:03:35,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:35,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:36,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:03:36,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:36,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443263994] [2024-11-28 05:03:36,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443263994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:36,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:03:36,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:03:36,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018390207] [2024-11-28 05:03:36,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:36,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:03:36,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:36,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:03:36,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:03:37,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 401 [2024-11-28 05:03:37,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 522 transitions, 1837 flow. Second operand has 6 states, 6 states have (on average 265.1666666666667) internal successors, (1591), 6 states have internal predecessors, (1591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:03:37,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:03:37,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 401 [2024-11-28 05:03:37,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand