./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:11:00,601 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:11:00,699 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:11:00,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:11:00,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:11:00,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:11:00,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:11:00,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:11:00,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:11:00,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:11:00,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:11:00,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:11:00,748 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:11:00,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:11:00,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:11:00,749 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:11:00,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:11:00,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:11:00,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:11:00,749 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:11:00,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:11:00,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:11:00,749 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:11:00,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:11:00,749 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:11:00,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:11:00,750 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:11:00,750 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:11:00,750 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:11:00,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:11:00,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:11:00,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:11:00,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:11:00,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:11:00,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:11:00,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:11:00,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:11:00,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:11:00,751 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:11:00,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:11:00,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:11:00,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:11:00,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:11:00,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:11:00,751 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:11:00,751 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:11:00,752 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_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2024-11-28 03:11:01,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:11:01,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:11:01,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:11:01,096 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:11:01,096 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:11:01,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-11-28 03:11:04,148 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/data/3fcb63fd8/3b48a8a2bbda4e20a4f3ba1ccac2a674/FLAGfd1462242 [2024-11-28 03:11:04,525 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:11:04,525 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-11-28 03:11:04,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/data/3fcb63fd8/3b48a8a2bbda4e20a4f3ba1ccac2a674/FLAGfd1462242 [2024-11-28 03:11:04,564 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/data/3fcb63fd8/3b48a8a2bbda4e20a4f3ba1ccac2a674 [2024-11-28 03:11:04,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:11:04,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:11:04,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:11:04,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:11:04,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:11:04,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:04" (1/1) ... [2024-11-28 03:11:04,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85a9a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:04, skipping insertion in model container [2024-11-28 03:11:04,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:04" (1/1) ... [2024-11-28 03:11:04,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:11:05,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:11:05,330 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:11:05,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:11:05,566 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:11:05,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05 WrapperNode [2024-11-28 03:11:05,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:11:05,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:11:05,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:11:05,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:11:05,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,674 INFO L138 Inliner]: procedures = 378, calls = 83, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 433 [2024-11-28 03:11:05,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:11:05,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:11:05,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:11:05,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:11:05,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,700 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,700 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,754 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,760 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:11:05,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:11:05,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:11:05,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:11:05,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (1/1) ... [2024-11-28 03:11:05,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:11:05,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:05,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:11:05,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ea7fb7-e642-4784-add6-9b57a1229873/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:11:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:11:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-28 03:11:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:11:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-28 03:11:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:11:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:11:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:11:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:11:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:11:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:11:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-28 03:11:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 03:11:05,893 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 03:11:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:11:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:11:05,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:11:05,896 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:11:06,109 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:11:06,111 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:11:07,073 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:11:07,073 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:11:07,153 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:11:07,153 INFO L312 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-28 03:11:07,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:07 BoogieIcfgContainer [2024-11-28 03:11:07,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:11:07,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:11:07,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:11:07,165 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:11:07,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:04" (1/3) ... [2024-11-28 03:11:07,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4733b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:07, skipping insertion in model container [2024-11-28 03:11:07,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:05" (2/3) ... [2024-11-28 03:11:07,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4733b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:07, skipping insertion in model container [2024-11-28 03:11:07,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:07" (3/3) ... [2024-11-28 03:11:07,168 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2024-11-28 03:11:07,185 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:11:07,187 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_94-alloc_region_racing.i that has 2 procedures, 441 locations, 1 initial locations, 13 loop locations, and 29 error locations. [2024-11-28 03:11:07,187 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:11:07,397 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 03:11:07,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 444 places, 472 transitions, 951 flow [2024-11-28 03:11:07,865 INFO L124 PetriNetUnfolderBase]: 48/694 cut-off events. [2024-11-28 03:11:07,868 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:11:07,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 694 events. 48/694 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2335 event pairs, 0 based on Foata normal form. 0/599 useless extension candidates. Maximal degree in co-relation 388. Up to 8 conditions per place. [2024-11-28 03:11:07,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 444 places, 472 transitions, 951 flow [2024-11-28 03:11:07,903 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 472 transitions, 951 flow [2024-11-28 03:11:07,916 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:11:07,937 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;@27fee838, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:11:07,937 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-28 03:11:07,948 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:11:07,949 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-11-28 03:11:07,949 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:11:07,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:11:07,951 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] [2024-11-28 03:11:07,951 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-28 03:11:07,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:07,959 INFO L85 PathProgramCache]: Analyzing trace with hash -688398354, now seen corresponding path program 1 times [2024-11-28 03:11:07,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:07,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234706078] [2024-11-28 03:11:07,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:07,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:09,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:11:09,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:09,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234706078] [2024-11-28 03:11:09,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234706078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:09,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:09,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:11:09,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58024865] [2024-11-28 03:11:09,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:09,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:11:09,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:09,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:11:09,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:11:10,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 472 [2024-11-28 03:11:10,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 472 transitions, 951 flow. Second operand has 6 states, 6 states have (on average 297.3333333333333) internal successors, (1784), 6 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:10,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:11:10,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 472 [2024-11-28 03:11:10,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:11:14,097 INFO L124 PetriNetUnfolderBase]: 3778/14423 cut-off events. [2024-11-28 03:11:14,098 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 03:11:14,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21913 conditions, 14423 events. 3778/14423 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 135377 event pairs, 3600 based on Foata normal form. 1284/14574 useless extension candidates. Maximal degree in co-relation 21522. Up to 7480 conditions per place. [2024-11-28 03:11:14,173 INFO L140 encePairwiseOnDemand]: 439/472 looper letters, 141 selfloop transitions, 5 changer transitions 0/440 dead transitions. [2024-11-28 03:11:14,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 440 transitions, 1179 flow [2024-11-28 03:11:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:11:14,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:11:14,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1950 transitions. [2024-11-28 03:11:14,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6885593220338984 [2024-11-28 03:11:14,205 INFO L175 Difference]: Start difference. First operand has 444 places, 472 transitions, 951 flow. Second operand 6 states and 1950 transitions. [2024-11-28 03:11:14,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 440 transitions, 1179 flow [2024-11-28 03:11:14,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 440 transitions, 1179 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:11:14,227 INFO L231 Difference]: Finished difference. Result has 444 places, 440 transitions, 897 flow [2024-11-28 03:11:14,230 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=887, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=897, PETRI_PLACES=444, PETRI_TRANSITIONS=440} [2024-11-28 03:11:14,234 INFO L279 CegarLoopForPetriNet]: 444 programPoint places, 0 predicate places. [2024-11-28 03:11:14,234 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 440 transitions, 897 flow [2024-11-28 03:11:14,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.3333333333333) internal successors, (1784), 6 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:14,235 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:11:14,235 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:14,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:11:14,238 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-28 03:11:14,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:14,239 INFO L85 PathProgramCache]: Analyzing trace with hash 332760329, now seen corresponding path program 1 times [2024-11-28 03:11:14,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:14,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989455444] [2024-11-28 03:11:14,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:14,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:14,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:11:14,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:14,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989455444] [2024-11-28 03:11:14,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989455444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:14,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:14,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:11:14,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383850756] [2024-11-28 03:11:14,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:14,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:11:14,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:14,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:11:14,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:11:16,063 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 472 [2024-11-28 03:11:16,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 440 transitions, 897 flow. Second operand has 6 states, 6 states have (on average 344.8333333333333) internal successors, (2069), 6 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:16,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:11:16,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 472 [2024-11-28 03:11:16,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:11:18,726 INFO L124 PetriNetUnfolderBase]: 1984/12419 cut-off events. [2024-11-28 03:11:18,727 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-28 03:11:18,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16294 conditions, 12419 events. 1984/12419 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 122830 event pairs, 1166 based on Foata normal form. 0/11250 useless extension candidates. Maximal degree in co-relation 16236. Up to 3409 conditions per place. [2024-11-28 03:11:18,790 INFO L140 encePairwiseOnDemand]: 435/472 looper letters, 138 selfloop transitions, 107 changer transitions 0/585 dead transitions. [2024-11-28 03:11:18,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 585 transitions, 1680 flow [2024-11-28 03:11:18,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:11:18,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:11:18,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2305 transitions. [2024-11-28 03:11:18,797 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.813912429378531 [2024-11-28 03:11:18,798 INFO L175 Difference]: Start difference. First operand has 444 places, 440 transitions, 897 flow. Second operand 6 states and 2305 transitions. [2024-11-28 03:11:18,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 585 transitions, 1680 flow [2024-11-28 03:11:18,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 585 transitions, 1670 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:11:18,814 INFO L231 Difference]: Finished difference. Result has 448 places, 540 transitions, 1575 flow [2024-11-28 03:11:18,815 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1575, PETRI_PLACES=448, PETRI_TRANSITIONS=540} [2024-11-28 03:11:18,816 INFO L279 CegarLoopForPetriNet]: 444 programPoint places, 4 predicate places. [2024-11-28 03:11:18,816 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 540 transitions, 1575 flow [2024-11-28 03:11:18,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.8333333333333) internal successors, (2069), 6 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:18,818 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:11:18,818 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] [2024-11-28 03:11:18,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:11:18,818 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-28 03:11:18,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:18,819 INFO L85 PathProgramCache]: Analyzing trace with hash -456514027, now seen corresponding path program 1 times [2024-11-28 03:11:18,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:18,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73632874] [2024-11-28 03:11:18,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:18,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:19,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:11:19,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:19,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73632874] [2024-11-28 03:11:19,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73632874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:19,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:19,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:11:19,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779010832] [2024-11-28 03:11:19,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:19,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:11:19,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:19,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:11:19,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:11:20,113 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 472 [2024-11-28 03:11:20,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 540 transitions, 1575 flow. Second operand has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:20,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:11:20,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 472 [2024-11-28 03:11:20,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:11:23,933 INFO L124 PetriNetUnfolderBase]: 5534/21166 cut-off events. [2024-11-28 03:11:23,933 INFO L125 PetriNetUnfolderBase]: For 3362/3412 co-relation queries the response was YES. [2024-11-28 03:11:23,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36340 conditions, 21166 events. 5534/21166 cut-off events. For 3362/3412 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 216028 event pairs, 3888 based on Foata normal form. 0/19303 useless extension candidates. Maximal degree in co-relation 35817. Up to 10652 conditions per place. [2024-11-28 03:11:24,012 INFO L140 encePairwiseOnDemand]: 419/472 looper letters, 277 selfloop transitions, 171 changer transitions 0/744 dead transitions. [2024-11-28 03:11:24,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 744 transitions, 3071 flow [2024-11-28 03:11:24,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:11:24,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:11:24,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2144 transitions. [2024-11-28 03:11:24,019 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7570621468926554 [2024-11-28 03:11:24,019 INFO L175 Difference]: Start difference. First operand has 448 places, 540 transitions, 1575 flow. Second operand 6 states and 2144 transitions. [2024-11-28 03:11:24,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 744 transitions, 3071 flow [2024-11-28 03:11:24,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 744 transitions, 3071 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:11:24,048 INFO L231 Difference]: Finished difference. Result has 457 places, 704 transitions, 2871 flow [2024-11-28 03:11:24,050 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1573, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2871, PETRI_PLACES=457, PETRI_TRANSITIONS=704} [2024-11-28 03:11:24,051 INFO L279 CegarLoopForPetriNet]: 444 programPoint places, 13 predicate places. [2024-11-28 03:11:24,052 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 704 transitions, 2871 flow [2024-11-28 03:11:24,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:24,053 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:11:24,053 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:24,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:11:24,053 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-28 03:11:24,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:24,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1923080772, now seen corresponding path program 1 times [2024-11-28 03:11:24,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:24,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297699785] [2024-11-28 03:11:24,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:24,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:11:24,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:24,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297699785] [2024-11-28 03:11:24,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297699785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:24,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:24,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:11:24,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045246714] [2024-11-28 03:11:24,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:24,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:11:24,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:24,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:11:24,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:11:25,457 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 472 [2024-11-28 03:11:25,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 704 transitions, 2871 flow. Second operand has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:25,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:11:25,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 472 [2024-11-28 03:11:25,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:11:30,041 INFO L124 PetriNetUnfolderBase]: 5975/22678 cut-off events. [2024-11-28 03:11:30,041 INFO L125 PetriNetUnfolderBase]: For 7258/7320 co-relation queries the response was YES. [2024-11-28 03:11:30,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43635 conditions, 22678 events. 5975/22678 cut-off events. For 7258/7320 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 231823 event pairs, 3928 based on Foata normal form. 0/20750 useless extension candidates. Maximal degree in co-relation 43088. Up to 11147 conditions per place. [2024-11-28 03:11:30,156 INFO L140 encePairwiseOnDemand]: 419/472 looper letters, 437 selfloop transitions, 171 changer transitions 0/908 dead transitions. [2024-11-28 03:11:30,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 908 transitions, 5007 flow [2024-11-28 03:11:30,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:11:30,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:11:30,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2144 transitions. [2024-11-28 03:11:30,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7570621468926554 [2024-11-28 03:11:30,164 INFO L175 Difference]: Start difference. First operand has 457 places, 704 transitions, 2871 flow. Second operand 6 states and 2144 transitions. [2024-11-28 03:11:30,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 908 transitions, 5007 flow [2024-11-28 03:11:30,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 908 transitions, 4815 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-11-28 03:11:30,209 INFO L231 Difference]: Finished difference. Result has 466 places, 868 transitions, 4295 flow [2024-11-28 03:11:30,212 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=2677, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4295, PETRI_PLACES=466, PETRI_TRANSITIONS=868} [2024-11-28 03:11:30,214 INFO L279 CegarLoopForPetriNet]: 444 programPoint places, 22 predicate places. [2024-11-28 03:11:30,214 INFO L471 AbstractCegarLoop]: Abstraction has has 466 places, 868 transitions, 4295 flow [2024-11-28 03:11:30,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:30,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:11:30,216 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:30,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:11:30,216 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-28 03:11:30,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:30,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2111109952, now seen corresponding path program 1 times [2024-11-28 03:11:30,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:30,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212269961] [2024-11-28 03:11:30,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:30,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:11:31,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:31,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212269961] [2024-11-28 03:11:31,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212269961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:31,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:31,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:11:31,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406115087] [2024-11-28 03:11:31,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:31,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:11:31,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:31,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:11:31,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:11:31,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 472 [2024-11-28 03:11:31,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 868 transitions, 4295 flow. Second operand has 6 states, 6 states have (on average 299.1666666666667) internal successors, (1795), 6 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:31,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:11:31,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 472 [2024-11-28 03:11:31,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:11:36,691 INFO L124 PetriNetUnfolderBase]: 6422/23859 cut-off events. [2024-11-28 03:11:36,691 INFO L125 PetriNetUnfolderBase]: For 13628/13752 co-relation queries the response was YES. [2024-11-28 03:11:36,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51715 conditions, 23859 events. 6422/23859 cut-off events. For 13628/13752 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 244435 event pairs, 3870 based on Foata normal form. 0/21844 useless extension candidates. Maximal degree in co-relation 51088. Up to 12188 conditions per place. [2024-11-28 03:11:36,777 INFO L140 encePairwiseOnDemand]: 425/472 looper letters, 613 selfloop transitions, 166 changer transitions 0/1073 dead transitions. [2024-11-28 03:11:36,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 1073 transitions, 7095 flow [2024-11-28 03:11:36,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:11:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:11:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2124 transitions. [2024-11-28 03:11:36,783 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-28 03:11:36,783 INFO L175 Difference]: Start difference. First operand has 466 places, 868 transitions, 4295 flow. Second operand 6 states and 2124 transitions. [2024-11-28 03:11:36,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 1073 transitions, 7095 flow [2024-11-28 03:11:36,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 1073 transitions, 6583 flow, removed 256 selfloop flow, removed 0 redundant places. [2024-11-28 03:11:36,835 INFO L231 Difference]: Finished difference. Result has 476 places, 1033 transitions, 5701 flow [2024-11-28 03:11:36,836 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=3783, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5701, PETRI_PLACES=476, PETRI_TRANSITIONS=1033} [2024-11-28 03:11:36,837 INFO L279 CegarLoopForPetriNet]: 444 programPoint places, 32 predicate places. [2024-11-28 03:11:36,837 INFO L471 AbstractCegarLoop]: Abstraction has has 476 places, 1033 transitions, 5701 flow [2024-11-28 03:11:36,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.1666666666667) internal successors, (1795), 6 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:36,838 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:11:36,838 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:36,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:11:36,839 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-28 03:11:36,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:36,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1816607646, now seen corresponding path program 1 times [2024-11-28 03:11:36,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:36,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969294043] [2024-11-28 03:11:36,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:36,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:36,897 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:11:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:36,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:11:36,973 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:11:36,973 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-28 03:11:36,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-11-28 03:11:36,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-11-28 03:11:36,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-11-28 03:11:36,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-11-28 03:11:36,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-11-28 03:11:36,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2024-11-28 03:11:36,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-11-28 03:11:36,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-11-28 03:11:36,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-11-28 03:11:36,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-11-28 03:11:36,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-11-28 03:11:36,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-11-28 03:11:36,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-11-28 03:11:36,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-11-28 03:11:36,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-11-28 03:11:36,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-11-28 03:11:36,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-11-28 03:11:36,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-11-28 03:11:36,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-11-28 03:11:36,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-11-28 03:11:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-11-28 03:11:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-11-28 03:11:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-11-28 03:11:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-11-28 03:11:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-11-28 03:11:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-11-28 03:11:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-11-28 03:11:36,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:11:36,982 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 03:11:36,985 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:11:36,985 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 03:11:37,092 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 03:11:37,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 637 transitions, 1290 flow [2024-11-28 03:11:37,432 INFO L124 PetriNetUnfolderBase]: 81/1109 cut-off events. [2024-11-28 03:11:37,432 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 03:11:37,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 1109 events. 81/1109 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5079 event pairs, 0 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 696. Up to 12 conditions per place. [2024-11-28 03:11:37,462 INFO L82 GeneralOperation]: Start removeDead. Operand has 597 places, 637 transitions, 1290 flow [2024-11-28 03:11:37,477 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 637 transitions, 1290 flow [2024-11-28 03:11:37,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:11:37,478 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;@27fee838, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:11:37,479 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-28 03:11:37,482 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:11:37,482 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-11-28 03:11:37,482 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:11:37,483 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:11:37,483 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] [2024-11-28 03:11:37,483 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-28 03:11:37,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:37,483 INFO L85 PathProgramCache]: Analyzing trace with hash -487724565, now seen corresponding path program 1 times [2024-11-28 03:11:37,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:37,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521949054] [2024-11-28 03:11:37,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:37,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:37,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:11:37,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:37,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521949054] [2024-11-28 03:11:37,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521949054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:37,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:37,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:11:37,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689469879] [2024-11-28 03:11:37,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:37,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:11:37,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:37,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:11:37,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:11:38,618 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 637 [2024-11-28 03:11:38,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 637 transitions, 1290 flow. Second operand has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:38,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:11:38,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 637 [2024-11-28 03:11:38,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand