./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC --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 1fe12ce8951e45860142b9cebaa325eef531c18fa917882c03ee5396afb187f5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:29:54,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:29:54,476 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 00:29:54,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:29:54,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:29:54,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:29:54,532 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:29:54,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:29:54,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:29:54,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:29:54,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:29:54,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:29:54,533 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:29:54,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:29:54,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:29:54,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:29:54,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:29:54,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:29:54,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:29:54,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:29:54,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:29:54,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:29:54,537 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 00:29:54,537 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:29:54,538 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:29:54,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:29:54,538 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:29:54,538 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:29:54,538 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:29:54,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:29:54,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:29:54,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:29:54,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:29:54,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:29:54,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:29:54,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:29:54,539 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:29:54,539 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:29:54,539 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:29:54,539 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:29:54,539 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:29:54,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:29:54,540 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:29:54,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:29:54,540 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:29:54,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:29:54,540 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_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC 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 -> 1fe12ce8951e45860142b9cebaa325eef531c18fa917882c03ee5396afb187f5 [2024-11-24 00:29:54,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:29:54,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:29:54,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:29:54,886 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:29:54,887 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:29:54,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2024-11-24 00:29:57,848 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/data/9fd0f5158/1c0a5947829c404d98930b7f24cd063a/FLAG174dd6b64 [2024-11-24 00:29:58,231 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:29:58,232 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2024-11-24 00:29:58,245 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/data/9fd0f5158/1c0a5947829c404d98930b7f24cd063a/FLAG174dd6b64 [2024-11-24 00:29:58,261 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/data/9fd0f5158/1c0a5947829c404d98930b7f24cd063a [2024-11-24 00:29:58,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:29:58,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:29:58,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:29:58,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:29:58,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:29:58,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5b23fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58, skipping insertion in model container [2024-11-24 00:29:58,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:29:58,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:29:58,667 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:29:58,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:29:58,759 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:29:58,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58 WrapperNode [2024-11-24 00:29:58,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:29:58,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:29:58,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:29:58,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:29:58,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,807 INFO L138 Inliner]: procedures = 173, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 140 [2024-11-24 00:29:58,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:29:58,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:29:58,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:29:58,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:29:58,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,839 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,852 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:29:58,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:29:58,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:29:58,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:29:58,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (1/1) ... [2024-11-24 00:29:58,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:29:58,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:29:58,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:29:58,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729508e-dfb0-4ca8-9e2f-b4e87e99067e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:29:58,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 00:29:58,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 00:29:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 00:29:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:29:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:29:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 00:29:58,939 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 00:29:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:29:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 00:29:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 00:29:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:29:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:29:58,941 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 00:29:59,061 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:29:59,063 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:29:59,379 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:29:59,379 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:29:59,418 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:29:59,419 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-24 00:29:59,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:29:59 BoogieIcfgContainer [2024-11-24 00:29:59,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:29:59,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:29:59,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:29:59,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:29:59,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:29:58" (1/3) ... [2024-11-24 00:29:59,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273dd4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:29:59, skipping insertion in model container [2024-11-24 00:29:59,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:58" (2/3) ... [2024-11-24 00:29:59,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273dd4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:29:59, skipping insertion in model container [2024-11-24 00:29:59,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:29:59" (3/3) ... [2024-11-24 00:29:59,430 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_05-lockfuns_racefree.i [2024-11-24 00:29:59,447 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:29:59,449 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_05-lockfuns_racefree.i that has 2 procedures, 135 locations, 1 initial locations, 6 loop locations, and 7 error locations. [2024-11-24 00:29:59,449 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:29:59,549 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-24 00:29:59,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 148 transitions, 303 flow [2024-11-24 00:29:59,712 INFO L124 PetriNetUnfolderBase]: 19/211 cut-off events. [2024-11-24 00:29:59,715 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 00:29:59,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 211 events. 19/211 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 661 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 117. Up to 4 conditions per place. [2024-11-24 00:29:59,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 148 transitions, 303 flow [2024-11-24 00:29:59,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 148 transitions, 303 flow [2024-11-24 00:29:59,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:29:59,753 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;@290dc419, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:29:59,754 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-24 00:29:59,770 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:29:59,772 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-24 00:29:59,772 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:29:59,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:29:59,773 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] [2024-11-24 00:29:59,774 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:29:59,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:29:59,779 INFO L85 PathProgramCache]: Analyzing trace with hash -103787966, now seen corresponding path program 1 times [2024-11-24 00:29:59,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:29:59,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602106099] [2024-11-24 00:29:59,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:29:59,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:29:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:30:00,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:00,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602106099] [2024-11-24 00:30:00,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602106099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:00,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:00,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:00,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605085623] [2024-11-24 00:30:00,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:00,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:00,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:00,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:00,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:00,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 148 [2024-11-24 00:30:00,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 148 transitions, 303 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2024-11-24 00:30:00,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:30:00,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 148 [2024-11-24 00:30:00,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:30:00,393 INFO L124 PetriNetUnfolderBase]: 48/553 cut-off events. [2024-11-24 00:30:00,393 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 00:30:00,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 553 events. 48/553 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2618 event pairs, 42 based on Foata normal form. 62/561 useless extension candidates. Maximal degree in co-relation 605. Up to 108 conditions per place. [2024-11-24 00:30:00,401 INFO L140 encePairwiseOnDemand]: 133/148 looper letters, 22 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2024-11-24 00:30:00,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 140 transitions, 335 flow [2024-11-24 00:30:00,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:00,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:30:00,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-11-24 00:30:00,420 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8896396396396397 [2024-11-24 00:30:00,423 INFO L175 Difference]: Start difference. First operand has 138 places, 148 transitions, 303 flow. Second operand 3 states and 395 transitions. [2024-11-24 00:30:00,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 140 transitions, 335 flow [2024-11-24 00:30:00,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 140 transitions, 335 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:30:00,437 INFO L231 Difference]: Finished difference. Result has 139 places, 134 transitions, 283 flow [2024-11-24 00:30:00,441 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=139, PETRI_TRANSITIONS=134} [2024-11-24 00:30:00,444 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 1 predicate places. [2024-11-24 00:30:00,445 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 134 transitions, 283 flow [2024-11-24 00:30:00,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2024-11-24 00:30:00,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:00,445 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] [2024-11-24 00:30:00,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:30:00,446 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:30:00,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:00,449 INFO L85 PathProgramCache]: Analyzing trace with hash 383853282, now seen corresponding path program 1 times [2024-11-24 00:30:00,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:00,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714509213] [2024-11-24 00:30:00,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:00,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:01,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:30:01,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:01,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714509213] [2024-11-24 00:30:01,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714509213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:01,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:01,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:30:01,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142315929] [2024-11-24 00:30:01,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:01,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:30:01,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:01,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:30:01,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:30:01,511 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 148 [2024-11-24 00:30:01,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 134 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 106.5) internal successors, (639), 6 states have internal predecessors, (639), 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) [2024-11-24 00:30:01,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:30:01,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 148 [2024-11-24 00:30:01,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:30:01,801 INFO L124 PetriNetUnfolderBase]: 108/826 cut-off events. [2024-11-24 00:30:01,802 INFO L125 PetriNetUnfolderBase]: For 11/14 co-relation queries the response was YES. [2024-11-24 00:30:01,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 826 events. 108/826 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4858 event pairs, 77 based on Foata normal form. 0/743 useless extension candidates. Maximal degree in co-relation 1023. Up to 181 conditions per place. [2024-11-24 00:30:01,811 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 48 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-11-24 00:30:01,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 157 transitions, 435 flow [2024-11-24 00:30:01,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:30:01,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:30:01,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 684 transitions. [2024-11-24 00:30:01,815 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7702702702702703 [2024-11-24 00:30:01,819 INFO L175 Difference]: Start difference. First operand has 139 places, 134 transitions, 283 flow. Second operand 6 states and 684 transitions. [2024-11-24 00:30:01,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 157 transitions, 435 flow [2024-11-24 00:30:01,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 157 transitions, 431 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:30:01,825 INFO L231 Difference]: Finished difference. Result has 141 places, 133 transitions, 287 flow [2024-11-24 00:30:01,825 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=287, PETRI_PLACES=141, PETRI_TRANSITIONS=133} [2024-11-24 00:30:01,826 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 3 predicate places. [2024-11-24 00:30:01,826 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 133 transitions, 287 flow [2024-11-24 00:30:01,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.5) internal successors, (639), 6 states have internal predecessors, (639), 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) [2024-11-24 00:30:01,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:01,827 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] [2024-11-24 00:30:01,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:30:01,827 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:30:01,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:01,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1388449843, now seen corresponding path program 1 times [2024-11-24 00:30:01,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:01,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676511546] [2024-11-24 00:30:01,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:01,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:30:01,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:01,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676511546] [2024-11-24 00:30:01,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676511546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:01,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:01,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:30:01,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609603802] [2024-11-24 00:30:01,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:01,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:01,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:01,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:01,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:01,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 148 [2024-11-24 00:30:01,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 133 transitions, 287 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2024-11-24 00:30:01,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:30:01,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 148 [2024-11-24 00:30:01,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:30:02,194 INFO L124 PetriNetUnfolderBase]: 91/830 cut-off events. [2024-11-24 00:30:02,195 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-24 00:30:02,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1066 conditions, 830 events. 91/830 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4963 event pairs, 30 based on Foata normal form. 0/760 useless extension candidates. Maximal degree in co-relation 1004. Up to 125 conditions per place. [2024-11-24 00:30:02,203 INFO L140 encePairwiseOnDemand]: 139/148 looper letters, 30 selfloop transitions, 6 changer transitions 0/146 dead transitions. [2024-11-24 00:30:02,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 146 transitions, 388 flow [2024-11-24 00:30:02,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:30:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2024-11-24 00:30:02,206 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8445945945945946 [2024-11-24 00:30:02,206 INFO L175 Difference]: Start difference. First operand has 141 places, 133 transitions, 287 flow. Second operand 3 states and 375 transitions. [2024-11-24 00:30:02,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 146 transitions, 388 flow [2024-11-24 00:30:02,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 146 transitions, 378 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 00:30:02,213 INFO L231 Difference]: Finished difference. Result has 138 places, 135 transitions, 315 flow [2024-11-24 00:30:02,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=138, PETRI_TRANSITIONS=135} [2024-11-24 00:30:02,216 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 0 predicate places. [2024-11-24 00:30:02,216 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 135 transitions, 315 flow [2024-11-24 00:30:02,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2024-11-24 00:30:02,217 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:02,217 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] [2024-11-24 00:30:02,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:30:02,218 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:30:02,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:02,219 INFO L85 PathProgramCache]: Analyzing trace with hash 775070088, now seen corresponding path program 1 times [2024-11-24 00:30:02,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:02,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271038326] [2024-11-24 00:30:02,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:02,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:30:02,265 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:30:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:30:02,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:30:02,316 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:30:02,317 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-24 00:30:02,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-24 00:30:02,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-24 00:30:02,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-24 00:30:02,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-24 00:30:02,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-24 00:30:02,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-24 00:30:02,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-24 00:30:02,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-24 00:30:02,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-24 00:30:02,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-24 00:30:02,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-24 00:30:02,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:30:02,324 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:30:02,327 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:30:02,331 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-24 00:30:02,376 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-24 00:30:02,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 201 transitions, 418 flow [2024-11-24 00:30:02,463 INFO L124 PetriNetUnfolderBase]: 34/355 cut-off events. [2024-11-24 00:30:02,464 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-24 00:30:02,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 355 events. 34/355 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1277 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 213. Up to 8 conditions per place. [2024-11-24 00:30:02,466 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 201 transitions, 418 flow [2024-11-24 00:30:02,472 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 201 transitions, 418 flow [2024-11-24 00:30:02,474 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:30:02,476 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;@290dc419, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:30:02,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-24 00:30:02,486 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:30:02,486 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-24 00:30:02,486 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:30:02,487 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:02,487 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] [2024-11-24 00:30:02,487 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:30:02,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:02,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1210168341, now seen corresponding path program 1 times [2024-11-24 00:30:02,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:02,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670132930] [2024-11-24 00:30:02,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:02,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:02,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:30:02,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:02,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670132930] [2024-11-24 00:30:02,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670132930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:02,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:02,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:02,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833715053] [2024-11-24 00:30:02,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:02,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:02,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:02,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:02,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:02,598 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 201 [2024-11-24 00:30:02,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 201 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-11-24 00:30:02,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:30:02,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 201 [2024-11-24 00:30:02,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:30:03,404 INFO L124 PetriNetUnfolderBase]: 788/4656 cut-off events. [2024-11-24 00:30:03,405 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2024-11-24 00:30:03,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6009 conditions, 4656 events. 788/4656 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 44843 event pairs, 703 based on Foata normal form. 772/4954 useless extension candidates. Maximal degree in co-relation 4501. Up to 1303 conditions per place. [2024-11-24 00:30:03,442 INFO L140 encePairwiseOnDemand]: 180/201 looper letters, 31 selfloop transitions, 2 changer transitions 0/188 dead transitions. [2024-11-24 00:30:03,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 188 transitions, 458 flow [2024-11-24 00:30:03,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:03,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:30:03,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2024-11-24 00:30:03,445 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8739635157545605 [2024-11-24 00:30:03,445 INFO L175 Difference]: Start difference. First operand has 186 places, 201 transitions, 418 flow. Second operand 3 states and 527 transitions. [2024-11-24 00:30:03,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 188 transitions, 458 flow [2024-11-24 00:30:03,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 188 transitions, 458 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:30:03,455 INFO L231 Difference]: Finished difference. Result has 187 places, 182 transitions, 390 flow [2024-11-24 00:30:03,455 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=390, PETRI_PLACES=187, PETRI_TRANSITIONS=182} [2024-11-24 00:30:03,458 INFO L279 CegarLoopForPetriNet]: 186 programPoint places, 1 predicate places. [2024-11-24 00:30:03,458 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 182 transitions, 390 flow [2024-11-24 00:30:03,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-11-24 00:30:03,459 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:03,459 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] [2024-11-24 00:30:03,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:30:03,459 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:30:03,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:03,460 INFO L85 PathProgramCache]: Analyzing trace with hash -722527093, now seen corresponding path program 1 times [2024-11-24 00:30:03,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:03,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856807974] [2024-11-24 00:30:03,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:03,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:03,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:30:03,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:03,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856807974] [2024-11-24 00:30:03,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856807974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:03,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:03,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:30:03,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026360853] [2024-11-24 00:30:03,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:03,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:30:03,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:03,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:30:03,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:30:04,009 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 201 [2024-11-24 00:30:04,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 182 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-24 00:30:04,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:30:04,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 201 [2024-11-24 00:30:04,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:30:05,262 INFO L124 PetriNetUnfolderBase]: 1723/7364 cut-off events. [2024-11-24 00:30:05,262 INFO L125 PetriNetUnfolderBase]: For 150/174 co-relation queries the response was YES. [2024-11-24 00:30:05,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10338 conditions, 7364 events. 1723/7364 cut-off events. For 150/174 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 75575 event pairs, 844 based on Foata normal form. 0/6612 useless extension candidates. Maximal degree in co-relation 8800. Up to 2025 conditions per place. [2024-11-24 00:30:05,307 INFO L140 encePairwiseOnDemand]: 195/201 looper letters, 80 selfloop transitions, 6 changer transitions 0/229 dead transitions. [2024-11-24 00:30:05,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 229 transitions, 656 flow [2024-11-24 00:30:05,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:30:05,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:30:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 950 transitions. [2024-11-24 00:30:05,311 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7877280265339967 [2024-11-24 00:30:05,312 INFO L175 Difference]: Start difference. First operand has 187 places, 182 transitions, 390 flow. Second operand 6 states and 950 transitions. [2024-11-24 00:30:05,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 229 transitions, 656 flow [2024-11-24 00:30:05,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 229 transitions, 654 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:30:05,320 INFO L231 Difference]: Finished difference. Result has 190 places, 181 transitions, 398 flow [2024-11-24 00:30:05,320 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=398, PETRI_PLACES=190, PETRI_TRANSITIONS=181} [2024-11-24 00:30:05,321 INFO L279 CegarLoopForPetriNet]: 186 programPoint places, 4 predicate places. [2024-11-24 00:30:05,321 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 181 transitions, 398 flow [2024-11-24 00:30:05,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-24 00:30:05,322 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:05,322 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] [2024-11-24 00:30:05,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:30:05,322 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:30:05,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:05,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1229773280, now seen corresponding path program 1 times [2024-11-24 00:30:05,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:05,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864345976] [2024-11-24 00:30:05,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:05,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:30:05,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:05,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864345976] [2024-11-24 00:30:05,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864345976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:05,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:05,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:30:05,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231988370] [2024-11-24 00:30:05,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:05,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:05,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:05,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:05,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:05,422 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 201 [2024-11-24 00:30:05,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 181 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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) [2024-11-24 00:30:05,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:30:05,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 201 [2024-11-24 00:30:05,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:30:07,732 INFO L124 PetriNetUnfolderBase]: 3895/15099 cut-off events. [2024-11-24 00:30:07,733 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2024-11-24 00:30:07,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21657 conditions, 15099 events. 3895/15099 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 171977 event pairs, 1409 based on Foata normal form. 0/13576 useless extension candidates. Maximal degree in co-relation 14997. Up to 3516 conditions per place. [2024-11-24 00:30:07,818 INFO L140 encePairwiseOnDemand]: 182/201 looper letters, 58 selfloop transitions, 14 changer transitions 0/214 dead transitions. [2024-11-24 00:30:07,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 214 transitions, 619 flow [2024-11-24 00:30:07,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:07,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:30:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2024-11-24 00:30:07,821 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8391376451077943 [2024-11-24 00:30:07,821 INFO L175 Difference]: Start difference. First operand has 190 places, 181 transitions, 398 flow. Second operand 3 states and 506 transitions. [2024-11-24 00:30:07,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 214 transitions, 619 flow [2024-11-24 00:30:07,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 214 transitions, 607 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 00:30:07,828 INFO L231 Difference]: Finished difference. Result has 189 places, 195 transitions, 508 flow [2024-11-24 00:30:07,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=189, PETRI_TRANSITIONS=195} [2024-11-24 00:30:07,829 INFO L279 CegarLoopForPetriNet]: 186 programPoint places, 3 predicate places. [2024-11-24 00:30:07,830 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 195 transitions, 508 flow [2024-11-24 00:30:07,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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) [2024-11-24 00:30:07,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:07,831 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] [2024-11-24 00:30:07,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:30:07,831 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:30:07,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:07,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1252090697, now seen corresponding path program 1 times [2024-11-24 00:30:07,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:07,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44328729] [2024-11-24 00:30:07,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:07,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:07,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:30:07,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:07,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44328729] [2024-11-24 00:30:07,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44328729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:07,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:07,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:30:07,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106319453] [2024-11-24 00:30:07,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:07,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:07,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:07,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:07,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:07,929 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 201 [2024-11-24 00:30:07,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 195 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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) [2024-11-24 00:30:07,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:30:07,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 201 [2024-11-24 00:30:07,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:30:09,905 INFO L124 PetriNetUnfolderBase]: 4045/17167 cut-off events. [2024-11-24 00:30:09,905 INFO L125 PetriNetUnfolderBase]: For 4377/4541 co-relation queries the response was YES. [2024-11-24 00:30:09,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27922 conditions, 17167 events. 4045/17167 cut-off events. For 4377/4541 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 205640 event pairs, 2517 based on Foata normal form. 46/15665 useless extension candidates. Maximal degree in co-relation 26605. Up to 5540 conditions per place. [2024-11-24 00:30:10,008 INFO L140 encePairwiseOnDemand]: 192/201 looper letters, 52 selfloop transitions, 14 changer transitions 0/219 dead transitions. [2024-11-24 00:30:10,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 219 transitions, 726 flow [2024-11-24 00:30:10,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:10,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:30:10,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2024-11-24 00:30:10,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8291873963515755 [2024-11-24 00:30:10,011 INFO L175 Difference]: Start difference. First operand has 189 places, 195 transitions, 508 flow. Second operand 3 states and 500 transitions. [2024-11-24 00:30:10,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 219 transitions, 726 flow [2024-11-24 00:30:10,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 219 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:30:10,024 INFO L231 Difference]: Finished difference. Result has 191 places, 207 transitions, 606 flow [2024-11-24 00:30:10,024 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=191, PETRI_TRANSITIONS=207} [2024-11-24 00:30:10,025 INFO L279 CegarLoopForPetriNet]: 186 programPoint places, 5 predicate places. [2024-11-24 00:30:10,025 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 207 transitions, 606 flow [2024-11-24 00:30:10,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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) [2024-11-24 00:30:10,025 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:10,025 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] [2024-11-24 00:30:10,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:30:10,026 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:30:10,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:10,026 INFO L85 PathProgramCache]: Analyzing trace with hash -355937790, now seen corresponding path program 1 times [2024-11-24 00:30:10,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:10,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564781002] [2024-11-24 00:30:10,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:10,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:30:10,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:10,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564781002] [2024-11-24 00:30:10,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564781002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:10,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:10,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:30:10,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108556137] [2024-11-24 00:30:10,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:10,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:30:10,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:10,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:30:10,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:30:10,206 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 201 [2024-11-24 00:30:10,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 207 transitions, 606 flow. Second operand has 5 states, 5 states have (on average 156.4) internal successors, (782), 5 states have internal predecessors, (782), 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) [2024-11-24 00:30:10,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:30:10,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 201 [2024-11-24 00:30:10,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:30:12,142 INFO L124 PetriNetUnfolderBase]: 3045/18389 cut-off events. [2024-11-24 00:30:12,143 INFO L125 PetriNetUnfolderBase]: For 1348/2436 co-relation queries the response was YES. [2024-11-24 00:30:12,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25770 conditions, 18389 events. 3045/18389 cut-off events. For 1348/2436 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 241602 event pairs, 602 based on Foata normal form. 14/16491 useless extension candidates. Maximal degree in co-relation 11751. Up to 3791 conditions per place. [2024-11-24 00:30:12,227 INFO L140 encePairwiseOnDemand]: 196/201 looper letters, 56 selfloop transitions, 5 changer transitions 0/239 dead transitions. [2024-11-24 00:30:12,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 239 transitions, 792 flow [2024-11-24 00:30:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:30:12,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:30:12,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 986 transitions. [2024-11-24 00:30:12,230 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8175787728026535 [2024-11-24 00:30:12,230 INFO L175 Difference]: Start difference. First operand has 191 places, 207 transitions, 606 flow. Second operand 6 states and 986 transitions. [2024-11-24 00:30:12,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 239 transitions, 792 flow [2024-11-24 00:30:12,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 239 transitions, 764 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:30:12,240 INFO L231 Difference]: Finished difference. Result has 197 places, 209 transitions, 604 flow [2024-11-24 00:30:12,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=604, PETRI_PLACES=197, PETRI_TRANSITIONS=209} [2024-11-24 00:30:12,240 INFO L279 CegarLoopForPetriNet]: 186 programPoint places, 11 predicate places. [2024-11-24 00:30:12,241 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 209 transitions, 604 flow [2024-11-24 00:30:12,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 156.4) internal successors, (782), 5 states have internal predecessors, (782), 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) [2024-11-24 00:30:12,241 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:12,241 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-24 00:30:12,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:30:12,242 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:30:12,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:12,242 INFO L85 PathProgramCache]: Analyzing trace with hash 199081641, now seen corresponding path program 1 times [2024-11-24 00:30:12,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:12,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147677325] [2024-11-24 00:30:12,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:12,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:30:12,266 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:30:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:30:12,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:30:12,288 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:30:12,288 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-24 00:30:12,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-24 00:30:12,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-24 00:30:12,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:30:12,290 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-24 00:30:12,290 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:30:12,290 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-24 00:30:12,323 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-24 00:30:12,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 254 transitions, 535 flow [2024-11-24 00:30:12,402 INFO L124 PetriNetUnfolderBase]: 54/544 cut-off events. [2024-11-24 00:30:12,403 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-24 00:30:12,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 544 events. 54/544 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2102 event pairs, 1 based on Foata normal form. 0/458 useless extension candidates. Maximal degree in co-relation 363. Up to 16 conditions per place. [2024-11-24 00:30:12,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 254 transitions, 535 flow [2024-11-24 00:30:12,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 254 transitions, 535 flow [2024-11-24 00:30:12,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:30:12,412 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;@290dc419, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:30:12,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-24 00:30:12,414 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:30:12,414 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-24 00:30:12,414 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:30:12,414 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:12,414 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] [2024-11-24 00:30:12,415 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-24 00:30:12,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:12,415 INFO L85 PathProgramCache]: Analyzing trace with hash 126822697, now seen corresponding path program 1 times [2024-11-24 00:30:12,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:12,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450147866] [2024-11-24 00:30:12,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:12,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:12,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:30:12,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:12,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450147866] [2024-11-24 00:30:12,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450147866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:12,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:12,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:12,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045742109] [2024-11-24 00:30:12,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:12,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:12,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:12,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:12,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:12,471 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 254 [2024-11-24 00:30:12,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 254 transitions, 535 flow. Second operand has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2024-11-24 00:30:12,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:30:12,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 254 [2024-11-24 00:30:12,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:30:16,664 INFO L124 PetriNetUnfolderBase]: 8935/37164 cut-off events. [2024-11-24 00:30:16,665 INFO L125 PetriNetUnfolderBase]: For 1921/1921 co-relation queries the response was YES. [2024-11-24 00:30:16,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50334 conditions, 37164 events. 8935/37164 cut-off events. For 1921/1921 co-relation queries the response was YES. Maximal size of possible extension queue 772. Compared 492421 event pairs, 5659 based on Foata normal form. 7730/41595 useless extension candidates. Maximal degree in co-relation 5990. Up to 12747 conditions per place. [2024-11-24 00:30:16,826 INFO L140 encePairwiseOnDemand]: 227/254 looper letters, 39 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2024-11-24 00:30:16,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 235 transitions, 579 flow [2024-11-24 00:30:16,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:16,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:30:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2024-11-24 00:30:16,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.863517060367454 [2024-11-24 00:30:16,828 INFO L175 Difference]: Start difference. First operand has 234 places, 254 transitions, 535 flow. Second operand 3 states and 658 transitions. [2024-11-24 00:30:16,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 235 transitions, 579 flow [2024-11-24 00:30:16,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 235 transitions, 579 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:30:16,832 INFO L231 Difference]: Finished difference. Result has 235 places, 229 transitions, 495 flow [2024-11-24 00:30:16,832 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=495, PETRI_PLACES=235, PETRI_TRANSITIONS=229} [2024-11-24 00:30:16,836 INFO L279 CegarLoopForPetriNet]: 234 programPoint places, 1 predicate places. [2024-11-24 00:30:16,836 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 229 transitions, 495 flow [2024-11-24 00:30:16,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2024-11-24 00:30:16,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:16,837 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] [2024-11-24 00:30:16,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:30:16,837 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-24 00:30:16,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:16,837 INFO L85 PathProgramCache]: Analyzing trace with hash 614463945, now seen corresponding path program 1 times [2024-11-24 00:30:16,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:16,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406607794] [2024-11-24 00:30:16,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:16,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:17,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:30:17,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:17,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406607794] [2024-11-24 00:30:17,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406607794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:17,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:17,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:30:17,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679811988] [2024-11-24 00:30:17,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:17,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:30:17,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:17,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:30:17,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:30:17,222 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 254 [2024-11-24 00:30:17,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 229 transitions, 495 flow. Second operand has 6 states, 6 states have (on average 184.5) internal successors, (1107), 6 states have internal predecessors, (1107), 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) [2024-11-24 00:30:17,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:30:17,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 254 [2024-11-24 00:30:17,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:30:24,691 INFO L124 PetriNetUnfolderBase]: 19604/61401 cut-off events. [2024-11-24 00:30:24,691 INFO L125 PetriNetUnfolderBase]: For 1323/1494 co-relation queries the response was YES. [2024-11-24 00:30:24,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90308 conditions, 61401 events. 19604/61401 cut-off events. For 1323/1494 co-relation queries the response was YES. Maximal size of possible extension queue 1306. Compared 816583 event pairs, 8121 based on Foata normal form. 0/56021 useless extension candidates. Maximal degree in co-relation 90174. Up to 20146 conditions per place. [2024-11-24 00:30:25,032 INFO L140 encePairwiseOnDemand]: 248/254 looper letters, 112 selfloop transitions, 6 changer transitions 0/300 dead transitions. [2024-11-24 00:30:25,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 300 transitions, 873 flow [2024-11-24 00:30:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:30:25,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:30:25,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1216 transitions. [2024-11-24 00:30:25,036 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7979002624671916 [2024-11-24 00:30:25,036 INFO L175 Difference]: Start difference. First operand has 235 places, 229 transitions, 495 flow. Second operand 6 states and 1216 transitions. [2024-11-24 00:30:25,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 300 transitions, 873 flow [2024-11-24 00:30:25,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 300 transitions, 871 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:30:25,043 INFO L231 Difference]: Finished difference. Result has 238 places, 228 transitions, 503 flow [2024-11-24 00:30:25,044 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=503, PETRI_PLACES=238, PETRI_TRANSITIONS=228} [2024-11-24 00:30:25,045 INFO L279 CegarLoopForPetriNet]: 234 programPoint places, 4 predicate places. [2024-11-24 00:30:25,045 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 228 transitions, 503 flow [2024-11-24 00:30:25,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.5) internal successors, (1107), 6 states have internal predecessors, (1107), 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) [2024-11-24 00:30:25,046 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:30:25,046 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] [2024-11-24 00:30:25,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:30:25,046 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-24 00:30:25,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:25,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1264923501, now seen corresponding path program 1 times [2024-11-24 00:30:25,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:25,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480702564] [2024-11-24 00:30:25,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:25,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:25,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:30:25,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:25,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480702564] [2024-11-24 00:30:25,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480702564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:25,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:25,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:30:25,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359137518] [2024-11-24 00:30:25,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:25,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:25,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:25,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:25,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:25,140 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 254 [2024-11-24 00:30:25,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 228 transitions, 503 flow. Second operand has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 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) [2024-11-24 00:30:25,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:30:25,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 254 [2024-11-24 00:30:25,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand