./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.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_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/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_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/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_64250502-a777-4df8-a9a3-009a541f9f19/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 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:04:57,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:04:57,855 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 05:04:57,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:04:57,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:04:57,908 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:04:57,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:04:57,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:04:57,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:04:57,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:04:57,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:04:57,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:04:57,914 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:04:57,914 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:04:57,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:04:57,914 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:04:57,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:04:57,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:04:57,915 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:04:57,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:04:57,915 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:04:57,915 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:04:57,915 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 05:04:57,916 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:04:57,916 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:04:57,916 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:04:57,916 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:04:57,916 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:04:57,916 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:04:57,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:04:57,917 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:04:57,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:04:57,917 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:04:57,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:04:57,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:04:57,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:04:57,918 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:04:57,918 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:04:57,918 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:04:57,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:04:57,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:04:57,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:04:57,919 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:04:57,919 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:04:57,919 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:04:57,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:04:57,919 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_64250502-a777-4df8-a9a3-009a541f9f19/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 -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 [2024-11-28 05:04:58,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:04:58,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:04:58,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:04:58,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:04:58,364 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:04:58,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2024-11-28 05:05:01,627 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/data/90ac0d169/4a15f8b1ca8e41f490ffdcae8e13b4dd/FLAG40a9dcef4 [2024-11-28 05:05:01,969 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:05:01,970 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2024-11-28 05:05:01,998 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/data/90ac0d169/4a15f8b1ca8e41f490ffdcae8e13b4dd/FLAG40a9dcef4 [2024-11-28 05:05:02,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/data/90ac0d169/4a15f8b1ca8e41f490ffdcae8e13b4dd [2024-11-28 05:05:02,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:05:02,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:05:02,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:05:02,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:05:02,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:05:02,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:05:02" (1/1) ... [2024-11-28 05:05:02,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24aaf659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:02, skipping insertion in model container [2024-11-28 05:05:02,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:05:02" (1/1) ... [2024-11-28 05:05:02,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:05:02,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:05:02,833 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:05:02,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:05:03,040 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:05:03,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03 WrapperNode [2024-11-28 05:05:03,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:05:03,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:05:03,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:05:03,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:05:03,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,099 INFO L138 Inliner]: procedures = 365, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2024-11-28 05:05:03,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:05:03,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:05:03,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:05:03,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:05:03,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,123 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:05:03,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:05:03,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:05:03,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:05:03,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (1/1) ... [2024-11-28 05:05:03,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:05:03,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:03,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:05:03,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:05:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 05:05:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 05:05:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 05:05:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 05:05:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 05:05:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:05:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 05:05:03,222 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 05:05:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 05:05:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:05:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:05:03,225 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 05:05:03,406 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:05:03,408 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:05:03,718 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 05:05:03,718 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:05:03,755 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:05:03,755 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 05:05:03,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:03 BoogieIcfgContainer [2024-11-28 05:05:03,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:05:03,759 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:05:03,760 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:05:03,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:05:03,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:05:02" (1/3) ... [2024-11-28 05:05:03,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea38fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:05:03, skipping insertion in model container [2024-11-28 05:05:03,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:03" (2/3) ... [2024-11-28 05:05:03,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea38fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:05:03, skipping insertion in model container [2024-11-28 05:05:03,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:03" (3/3) ... [2024-11-28 05:05:03,770 INFO L128 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2024-11-28 05:05:03,789 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:05:03,791 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 02-base_26-malloc_struct.i that has 2 procedures, 96 locations, 1 initial locations, 0 loop locations, and 9 error locations. [2024-11-28 05:05:03,791 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 05:05:03,890 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 05:05:03,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 95 transitions, 194 flow [2024-11-28 05:05:04,015 INFO L124 PetriNetUnfolderBase]: 0/94 cut-off events. [2024-11-28 05:05:04,018 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:05:04,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 94 events. 0/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-28 05:05:04,022 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 95 transitions, 194 flow [2024-11-28 05:05:04,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 94 transitions, 191 flow [2024-11-28 05:05:04,049 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:05:04,072 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;@4f8586db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:05:04,072 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-28 05:05:04,087 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:05:04,089 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-11-28 05:05:04,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:05:04,090 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:04,090 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:04,091 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:04,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:04,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1486570224, now seen corresponding path program 1 times [2024-11-28 05:05:04,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:04,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682715547] [2024-11-28 05:05:04,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:04,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:04,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:04,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:04,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682715547] [2024-11-28 05:05:04,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682715547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:04,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:04,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:05:04,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956504323] [2024-11-28 05:05:04,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:04,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:05:04,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:04,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:05:04,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:05:04,443 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 95 [2024-11-28 05:05:04,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 94 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:04,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:04,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 95 [2024-11-28 05:05:04,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:04,589 INFO L124 PetriNetUnfolderBase]: 16/229 cut-off events. [2024-11-28 05:05:04,589 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 05:05:04,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 229 events. 16/229 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 740 event pairs, 16 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 240. Up to 46 conditions per place. [2024-11-28 05:05:04,593 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 13 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-11-28 05:05:04,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 93 transitions, 219 flow [2024-11-28 05:05:04,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:05:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:05:04,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2024-11-28 05:05:04,611 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.887719298245614 [2024-11-28 05:05:04,613 INFO L175 Difference]: Start difference. First operand has 98 places, 94 transitions, 191 flow. Second operand 3 states and 253 transitions. [2024-11-28 05:05:04,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 93 transitions, 219 flow [2024-11-28 05:05:04,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 93 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 05:05:04,625 INFO L231 Difference]: Finished difference. Result has 98 places, 93 transitions, 192 flow [2024-11-28 05:05:04,631 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=98, PETRI_TRANSITIONS=93} [2024-11-28 05:05:04,635 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2024-11-28 05:05:04,635 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 93 transitions, 192 flow [2024-11-28 05:05:04,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:04,636 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:04,636 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] [2024-11-28 05:05:04,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:05:04,636 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:04,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:04,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1118414709, now seen corresponding path program 1 times [2024-11-28 05:05:04,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:04,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676030778] [2024-11-28 05:05:04,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:04,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:04,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:04,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:04,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676030778] [2024-11-28 05:05:04,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676030778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:04,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:04,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:05:04,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227627637] [2024-11-28 05:05:04,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:04,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:05:04,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:04,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:05:04,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:05:04,834 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2024-11-28 05:05:04,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:04,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:04,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2024-11-28 05:05:04,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:04,970 INFO L124 PetriNetUnfolderBase]: 24/301 cut-off events. [2024-11-28 05:05:04,970 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 05:05:04,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 301 events. 24/301 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1307 event pairs, 24 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 343. Up to 61 conditions per place. [2024-11-28 05:05:04,974 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 13 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2024-11-28 05:05:04,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 89 transitions, 212 flow [2024-11-28 05:05:04,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:05:04,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:05:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2024-11-28 05:05:04,977 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8736842105263158 [2024-11-28 05:05:04,977 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 192 flow. Second operand 3 states and 249 transitions. [2024-11-28 05:05:04,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 89 transitions, 212 flow [2024-11-28 05:05:04,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 89 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:05:04,980 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 182 flow [2024-11-28 05:05:04,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2024-11-28 05:05:04,982 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -4 predicate places. [2024-11-28 05:05:04,982 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 182 flow [2024-11-28 05:05:04,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:04,982 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:04,983 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] [2024-11-28 05:05:04,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:05:04,983 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:04,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:04,984 INFO L85 PathProgramCache]: Analyzing trace with hash -794414378, now seen corresponding path program 1 times [2024-11-28 05:05:04,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:04,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49897842] [2024-11-28 05:05:04,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:04,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:05,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:05,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:05,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49897842] [2024-11-28 05:05:05,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49897842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:05,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:05,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:05:05,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763050560] [2024-11-28 05:05:05,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:05,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:05:05,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:05,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:05:05,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:06,185 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 95 [2024-11-28 05:05:06,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 89 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:06,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:06,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 95 [2024-11-28 05:05:06,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:06,589 INFO L124 PetriNetUnfolderBase]: 185/657 cut-off events. [2024-11-28 05:05:06,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:05:06,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 657 events. 185/657 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3570 event pairs, 52 based on Foata normal form. 0/617 useless extension candidates. Maximal degree in co-relation 1036. Up to 246 conditions per place. [2024-11-28 05:05:06,598 INFO L140 encePairwiseOnDemand]: 79/95 looper letters, 47 selfloop transitions, 41 changer transitions 0/153 dead transitions. [2024-11-28 05:05:06,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 153 transitions, 486 flow [2024-11-28 05:05:06,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:05:06,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:05:06,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 515 transitions. [2024-11-28 05:05:06,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9035087719298246 [2024-11-28 05:05:06,607 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 182 flow. Second operand 6 states and 515 transitions. [2024-11-28 05:05:06,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 153 transitions, 486 flow [2024-11-28 05:05:06,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 153 transitions, 485 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 05:05:06,614 INFO L231 Difference]: Finished difference. Result has 102 places, 131 transitions, 439 flow [2024-11-28 05:05:06,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=439, PETRI_PLACES=102, PETRI_TRANSITIONS=131} [2024-11-28 05:05:06,617 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 4 predicate places. [2024-11-28 05:05:06,617 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 131 transitions, 439 flow [2024-11-28 05:05:06,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:06,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:06,618 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 05:05:06,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:05:06,621 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:06,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:06,622 INFO L85 PathProgramCache]: Analyzing trace with hash 662746690, now seen corresponding path program 1 times [2024-11-28 05:05:06,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:06,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268986995] [2024-11-28 05:05:06,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:06,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:07,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:07,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:07,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268986995] [2024-11-28 05:05:07,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268986995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:07,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:07,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:05:07,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463058013] [2024-11-28 05:05:07,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:07,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:05:07,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:07,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:05:07,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:07,601 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2024-11-28 05:05:07,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 131 transitions, 439 flow. Second operand has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:07,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:07,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2024-11-28 05:05:07,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:07,975 INFO L124 PetriNetUnfolderBase]: 231/994 cut-off events. [2024-11-28 05:05:07,975 INFO L125 PetriNetUnfolderBase]: For 291/338 co-relation queries the response was YES. [2024-11-28 05:05:07,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2068 conditions, 994 events. 231/994 cut-off events. For 291/338 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6807 event pairs, 25 based on Foata normal form. 26/987 useless extension candidates. Maximal degree in co-relation 2036. Up to 180 conditions per place. [2024-11-28 05:05:07,987 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 67 selfloop transitions, 32 changer transitions 0/190 dead transitions. [2024-11-28 05:05:07,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 190 transitions, 869 flow [2024-11-28 05:05:07,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:05:07,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:05:07,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 529 transitions. [2024-11-28 05:05:07,991 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9280701754385965 [2024-11-28 05:05:07,991 INFO L175 Difference]: Start difference. First operand has 102 places, 131 transitions, 439 flow. Second operand 6 states and 529 transitions. [2024-11-28 05:05:07,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 190 transitions, 869 flow [2024-11-28 05:05:08,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 190 transitions, 869 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 05:05:08,006 INFO L231 Difference]: Finished difference. Result has 112 places, 161 transitions, 741 flow [2024-11-28 05:05:08,006 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=741, PETRI_PLACES=112, PETRI_TRANSITIONS=161} [2024-11-28 05:05:08,007 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 14 predicate places. [2024-11-28 05:05:08,008 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 161 transitions, 741 flow [2024-11-28 05:05:08,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:08,008 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:08,008 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 05:05:08,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:05:08,010 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:08,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:08,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1263126400, now seen corresponding path program 1 times [2024-11-28 05:05:08,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:08,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654869343] [2024-11-28 05:05:08,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:08,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:08,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:08,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654869343] [2024-11-28 05:05:08,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654869343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:08,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:08,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:05:08,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277655829] [2024-11-28 05:05:08,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:08,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:05:08,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:08,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:05:08,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:05:08,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 95 [2024-11-28 05:05:08,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 161 transitions, 741 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:08,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:08,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 95 [2024-11-28 05:05:08,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:08,277 INFO L124 PetriNetUnfolderBase]: 39/278 cut-off events. [2024-11-28 05:05:08,278 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-11-28 05:05:08,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 278 events. 39/278 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 966 event pairs, 4 based on Foata normal form. 2/267 useless extension candidates. Maximal degree in co-relation 485. Up to 64 conditions per place. [2024-11-28 05:05:08,281 INFO L140 encePairwiseOnDemand]: 91/95 looper letters, 2 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2024-11-28 05:05:08,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 110 transitions, 375 flow [2024-11-28 05:05:08,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:05:08,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:05:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2024-11-28 05:05:08,284 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9649122807017544 [2024-11-28 05:05:08,284 INFO L175 Difference]: Start difference. First operand has 112 places, 161 transitions, 741 flow. Second operand 3 states and 275 transitions. [2024-11-28 05:05:08,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 110 transitions, 375 flow [2024-11-28 05:05:08,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 110 transitions, 333 flow, removed 13 selfloop flow, removed 8 redundant places. [2024-11-28 05:05:08,293 INFO L231 Difference]: Finished difference. Result has 105 places, 110 transitions, 329 flow [2024-11-28 05:05:08,293 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=105, PETRI_TRANSITIONS=110} [2024-11-28 05:05:08,296 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 7 predicate places. [2024-11-28 05:05:08,297 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 110 transitions, 329 flow [2024-11-28 05:05:08,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:08,298 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:08,298 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] [2024-11-28 05:05:08,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:05:08,299 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:08,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:08,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1313172452, now seen corresponding path program 1 times [2024-11-28 05:05:08,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:08,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257742011] [2024-11-28 05:05:08,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:08,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:08,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:08,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257742011] [2024-11-28 05:05:08,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257742011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:08,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:08,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:05:08,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735674247] [2024-11-28 05:05:08,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:08,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:05:08,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:08,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:05:08,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:09,218 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 95 [2024-11-28 05:05:09,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 110 transitions, 329 flow. Second operand has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:09,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:09,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 95 [2024-11-28 05:05:09,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:09,418 INFO L124 PetriNetUnfolderBase]: 93/474 cut-off events. [2024-11-28 05:05:09,418 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-28 05:05:09,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 474 events. 93/474 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2168 event pairs, 20 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 867. Up to 153 conditions per place. [2024-11-28 05:05:09,422 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 34 selfloop transitions, 22 changer transitions 0/131 dead transitions. [2024-11-28 05:05:09,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 131 transitions, 515 flow [2024-11-28 05:05:09,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:05:09,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:05:09,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2024-11-28 05:05:09,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8719298245614036 [2024-11-28 05:05:09,425 INFO L175 Difference]: Start difference. First operand has 105 places, 110 transitions, 329 flow. Second operand 6 states and 497 transitions. [2024-11-28 05:05:09,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 131 transitions, 515 flow [2024-11-28 05:05:09,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 131 transitions, 511 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 05:05:09,436 INFO L231 Difference]: Finished difference. Result has 114 places, 131 transitions, 507 flow [2024-11-28 05:05:09,436 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=507, PETRI_PLACES=114, PETRI_TRANSITIONS=131} [2024-11-28 05:05:09,437 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 16 predicate places. [2024-11-28 05:05:09,437 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 131 transitions, 507 flow [2024-11-28 05:05:09,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:09,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:09,438 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] [2024-11-28 05:05:09,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:05:09,438 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:09,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:09,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1654409923, now seen corresponding path program 1 times [2024-11-28 05:05:09,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:09,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752272476] [2024-11-28 05:05:09,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:09,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:09,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:09,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752272476] [2024-11-28 05:05:09,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752272476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:09,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:09,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:05:09,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832013865] [2024-11-28 05:05:09,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:09,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:05:09,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:09,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:05:09,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:10,098 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 95 [2024-11-28 05:05:10,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 131 transitions, 507 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:10,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:10,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 95 [2024-11-28 05:05:10,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:10,455 INFO L124 PetriNetUnfolderBase]: 195/727 cut-off events. [2024-11-28 05:05:10,455 INFO L125 PetriNetUnfolderBase]: For 309/315 co-relation queries the response was YES. [2024-11-28 05:05:10,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1814 conditions, 727 events. 195/727 cut-off events. For 309/315 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4010 event pairs, 12 based on Foata normal form. 0/705 useless extension candidates. Maximal degree in co-relation 1775. Up to 295 conditions per place. [2024-11-28 05:05:10,461 INFO L140 encePairwiseOnDemand]: 80/95 looper letters, 56 selfloop transitions, 52 changer transitions 11/188 dead transitions. [2024-11-28 05:05:10,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 188 transitions, 1014 flow [2024-11-28 05:05:10,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:05:10,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:05:10,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 501 transitions. [2024-11-28 05:05:10,464 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8789473684210526 [2024-11-28 05:05:10,464 INFO L175 Difference]: Start difference. First operand has 114 places, 131 transitions, 507 flow. Second operand 6 states and 501 transitions. [2024-11-28 05:05:10,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 188 transitions, 1014 flow [2024-11-28 05:05:10,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 188 transitions, 976 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-28 05:05:10,472 INFO L231 Difference]: Finished difference. Result has 124 places, 173 transitions, 931 flow [2024-11-28 05:05:10,472 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=931, PETRI_PLACES=124, PETRI_TRANSITIONS=173} [2024-11-28 05:05:10,473 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 26 predicate places. [2024-11-28 05:05:10,473 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 173 transitions, 931 flow [2024-11-28 05:05:10,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:10,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:10,474 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 05:05:10,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:05:10,474 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:10,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:10,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1313883544, now seen corresponding path program 1 times [2024-11-28 05:05:10,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532240396] [2024-11-28 05:05:10,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:10,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:11,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:11,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532240396] [2024-11-28 05:05:11,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532240396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:11,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:11,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:05:11,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587479727] [2024-11-28 05:05:11,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:11,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:05:11,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:11,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:05:11,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:05:12,272 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-28 05:05:12,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 173 transitions, 931 flow. Second operand has 10 states, 10 states have (on average 67.3) internal successors, (673), 10 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:12,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:12,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-28 05:05:12,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:12,587 INFO L124 PetriNetUnfolderBase]: 187/691 cut-off events. [2024-11-28 05:05:12,587 INFO L125 PetriNetUnfolderBase]: For 720/750 co-relation queries the response was YES. [2024-11-28 05:05:12,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2116 conditions, 691 events. 187/691 cut-off events. For 720/750 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3782 event pairs, 19 based on Foata normal form. 21/705 useless extension candidates. Maximal degree in co-relation 2068. Up to 131 conditions per place. [2024-11-28 05:05:12,593 INFO L140 encePairwiseOnDemand]: 83/95 looper letters, 88 selfloop transitions, 36 changer transitions 16/220 dead transitions. [2024-11-28 05:05:12,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 220 transitions, 1545 flow [2024-11-28 05:05:12,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:05:12,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 05:05:12,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 712 transitions. [2024-11-28 05:05:12,598 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7494736842105263 [2024-11-28 05:05:12,598 INFO L175 Difference]: Start difference. First operand has 124 places, 173 transitions, 931 flow. Second operand 10 states and 712 transitions. [2024-11-28 05:05:12,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 220 transitions, 1545 flow [2024-11-28 05:05:12,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 220 transitions, 1502 flow, removed 18 selfloop flow, removed 1 redundant places. [2024-11-28 05:05:12,617 INFO L231 Difference]: Finished difference. Result has 138 places, 181 transitions, 1078 flow [2024-11-28 05:05:12,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1078, PETRI_PLACES=138, PETRI_TRANSITIONS=181} [2024-11-28 05:05:12,618 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 40 predicate places. [2024-11-28 05:05:12,618 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 181 transitions, 1078 flow [2024-11-28 05:05:12,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.3) internal successors, (673), 10 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:12,622 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:12,622 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 05:05:12,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:05:12,623 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:12,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:12,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1916998803, now seen corresponding path program 1 times [2024-11-28 05:05:12,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:12,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258415930] [2024-11-28 05:05:12,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:12,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:13,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:13,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:13,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258415930] [2024-11-28 05:05:13,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258415930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:13,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:13,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:05:13,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520164849] [2024-11-28 05:05:13,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:13,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:05:13,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:13,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:05:13,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:05:14,128 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 95 [2024-11-28 05:05:14,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 181 transitions, 1078 flow. Second operand has 10 states, 10 states have (on average 68.7) internal successors, (687), 10 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:14,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:14,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 95 [2024-11-28 05:05:14,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:14,634 INFO L124 PetriNetUnfolderBase]: 230/794 cut-off events. [2024-11-28 05:05:14,634 INFO L125 PetriNetUnfolderBase]: For 1369/1411 co-relation queries the response was YES. [2024-11-28 05:05:14,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2783 conditions, 794 events. 230/794 cut-off events. For 1369/1411 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4565 event pairs, 8 based on Foata normal form. 28/818 useless extension candidates. Maximal degree in co-relation 2754. Up to 159 conditions per place. [2024-11-28 05:05:14,641 INFO L140 encePairwiseOnDemand]: 79/95 looper letters, 116 selfloop transitions, 67 changer transitions 17/263 dead transitions. [2024-11-28 05:05:14,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 263 transitions, 2090 flow [2024-11-28 05:05:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:05:14,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 05:05:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 706 transitions. [2024-11-28 05:05:14,645 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8257309941520468 [2024-11-28 05:05:14,645 INFO L175 Difference]: Start difference. First operand has 138 places, 181 transitions, 1078 flow. Second operand 9 states and 706 transitions. [2024-11-28 05:05:14,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 263 transitions, 2090 flow [2024-11-28 05:05:14,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 263 transitions, 2051 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-28 05:05:14,668 INFO L231 Difference]: Finished difference. Result has 144 places, 202 transitions, 1455 flow [2024-11-28 05:05:14,668 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1455, PETRI_PLACES=144, PETRI_TRANSITIONS=202} [2024-11-28 05:05:14,669 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 46 predicate places. [2024-11-28 05:05:14,669 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 202 transitions, 1455 flow [2024-11-28 05:05:14,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.7) internal successors, (687), 10 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:14,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:14,670 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] [2024-11-28 05:05:14,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:05:14,670 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:14,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:14,672 INFO L85 PathProgramCache]: Analyzing trace with hash -781584510, now seen corresponding path program 1 times [2024-11-28 05:05:14,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:14,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65018145] [2024-11-28 05:05:14,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:14,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:15,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:15,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65018145] [2024-11-28 05:05:15,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65018145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:15,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:15,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 05:05:15,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823636017] [2024-11-28 05:05:15,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:15,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:05:15,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:15,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:05:15,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:05:16,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-28 05:05:16,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 202 transitions, 1455 flow. Second operand has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:16,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:16,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-28 05:05:16,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:16,689 INFO L124 PetriNetUnfolderBase]: 199/789 cut-off events. [2024-11-28 05:05:16,690 INFO L125 PetriNetUnfolderBase]: For 2264/2344 co-relation queries the response was YES. [2024-11-28 05:05:16,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 789 events. 199/789 cut-off events. For 2264/2344 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4648 event pairs, 21 based on Foata normal form. 43/825 useless extension candidates. Maximal degree in co-relation 2927. Up to 168 conditions per place. [2024-11-28 05:05:16,697 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 93 selfloop transitions, 36 changer transitions 6/229 dead transitions. [2024-11-28 05:05:16,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 229 transitions, 2041 flow [2024-11-28 05:05:16,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:05:16,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 05:05:16,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 772 transitions. [2024-11-28 05:05:16,701 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.738755980861244 [2024-11-28 05:05:16,701 INFO L175 Difference]: Start difference. First operand has 144 places, 202 transitions, 1455 flow. Second operand 11 states and 772 transitions. [2024-11-28 05:05:16,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 229 transitions, 2041 flow [2024-11-28 05:05:16,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 229 transitions, 1993 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-28 05:05:16,731 INFO L231 Difference]: Finished difference. Result has 152 places, 200 transitions, 1479 flow [2024-11-28 05:05:16,731 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=1423, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1479, PETRI_PLACES=152, PETRI_TRANSITIONS=200} [2024-11-28 05:05:16,732 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 54 predicate places. [2024-11-28 05:05:16,732 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 200 transitions, 1479 flow [2024-11-28 05:05:16,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:16,733 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:16,733 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] [2024-11-28 05:05:16,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:05:16,733 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:16,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:16,737 INFO L85 PathProgramCache]: Analyzing trace with hash -720812794, now seen corresponding path program 2 times [2024-11-28 05:05:16,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:16,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86430939] [2024-11-28 05:05:16,738 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:05:16,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:16,765 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:05:16,766 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:05:17,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:17,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:17,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86430939] [2024-11-28 05:05:17,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86430939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:17,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:17,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 05:05:17,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085602574] [2024-11-28 05:05:17,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:17,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:05:17,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:17,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:05:17,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:05:18,030 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-28 05:05:18,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 200 transitions, 1479 flow. Second operand has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:18,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:18,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-28 05:05:18,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:18,464 INFO L124 PetriNetUnfolderBase]: 196/784 cut-off events. [2024-11-28 05:05:18,464 INFO L125 PetriNetUnfolderBase]: For 2440/2490 co-relation queries the response was YES. [2024-11-28 05:05:18,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2992 conditions, 784 events. 196/784 cut-off events. For 2440/2490 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4619 event pairs, 21 based on Foata normal form. 28/805 useless extension candidates. Maximal degree in co-relation 2959. Up to 168 conditions per place. [2024-11-28 05:05:18,472 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 93 selfloop transitions, 34 changer transitions 7/228 dead transitions. [2024-11-28 05:05:18,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 228 transitions, 2057 flow [2024-11-28 05:05:18,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:05:18,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 05:05:18,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 837 transitions. [2024-11-28 05:05:18,476 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7342105263157894 [2024-11-28 05:05:18,476 INFO L175 Difference]: Start difference. First operand has 152 places, 200 transitions, 1479 flow. Second operand 12 states and 837 transitions. [2024-11-28 05:05:18,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 228 transitions, 2057 flow [2024-11-28 05:05:18,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 228 transitions, 1975 flow, removed 5 selfloop flow, removed 10 redundant places. [2024-11-28 05:05:18,509 INFO L231 Difference]: Finished difference. Result has 154 places, 198 transitions, 1455 flow [2024-11-28 05:05:18,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=1401, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1455, PETRI_PLACES=154, PETRI_TRANSITIONS=198} [2024-11-28 05:05:18,510 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 56 predicate places. [2024-11-28 05:05:18,511 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 198 transitions, 1455 flow [2024-11-28 05:05:18,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:18,512 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:18,512 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] [2024-11-28 05:05:18,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:05:18,512 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:18,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:18,513 INFO L85 PathProgramCache]: Analyzing trace with hash -277143894, now seen corresponding path program 3 times [2024-11-28 05:05:18,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:18,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127859010] [2024-11-28 05:05:18,514 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:05:18,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:18,536 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 05:05:18,536 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:05:19,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:19,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:19,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127859010] [2024-11-28 05:05:19,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127859010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:19,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:19,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 05:05:19,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926702460] [2024-11-28 05:05:19,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:19,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:05:19,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:19,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:05:19,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:05:20,149 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-28 05:05:20,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 198 transitions, 1455 flow. Second operand has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:20,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:20,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-28 05:05:20,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:20,883 INFO L124 PetriNetUnfolderBase]: 200/841 cut-off events. [2024-11-28 05:05:20,883 INFO L125 PetriNetUnfolderBase]: For 2518/2539 co-relation queries the response was YES. [2024-11-28 05:05:20,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3162 conditions, 841 events. 200/841 cut-off events. For 2518/2539 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5199 event pairs, 21 based on Foata normal form. 13/847 useless extension candidates. Maximal degree in co-relation 3128. Up to 243 conditions per place. [2024-11-28 05:05:20,891 INFO L140 encePairwiseOnDemand]: 79/95 looper letters, 70 selfloop transitions, 42 changer transitions 12/218 dead transitions. [2024-11-28 05:05:20,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 218 transitions, 1896 flow [2024-11-28 05:05:20,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:05:20,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 05:05:20,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 911 transitions. [2024-11-28 05:05:20,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7376518218623481 [2024-11-28 05:05:20,896 INFO L175 Difference]: Start difference. First operand has 154 places, 198 transitions, 1455 flow. Second operand 13 states and 911 transitions. [2024-11-28 05:05:20,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 218 transitions, 1896 flow [2024-11-28 05:05:20,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 218 transitions, 1790 flow, removed 7 selfloop flow, removed 11 redundant places. [2024-11-28 05:05:20,924 INFO L231 Difference]: Finished difference. Result has 159 places, 204 transitions, 1566 flow [2024-11-28 05:05:20,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=1379, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1566, PETRI_PLACES=159, PETRI_TRANSITIONS=204} [2024-11-28 05:05:20,927 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 61 predicate places. [2024-11-28 05:05:20,927 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 204 transitions, 1566 flow [2024-11-28 05:05:20,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:20,928 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:20,928 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] [2024-11-28 05:05:20,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:05:20,928 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:20,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:20,929 INFO L85 PathProgramCache]: Analyzing trace with hash -66813786, now seen corresponding path program 4 times [2024-11-28 05:05:20,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:20,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634193319] [2024-11-28 05:05:20,930 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:05:20,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:20,956 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:05:20,956 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:05:21,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:21,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:21,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634193319] [2024-11-28 05:05:21,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634193319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:21,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:21,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 05:05:21,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421638847] [2024-11-28 05:05:21,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:21,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:05:21,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:21,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:05:21,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:05:22,293 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-28 05:05:22,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 204 transitions, 1566 flow. Second operand has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:22,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:05:22,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-28 05:05:22,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:05:22,751 INFO L124 PetriNetUnfolderBase]: 197/827 cut-off events. [2024-11-28 05:05:22,751 INFO L125 PetriNetUnfolderBase]: For 2503/2523 co-relation queries the response was YES. [2024-11-28 05:05:22,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3151 conditions, 827 events. 197/827 cut-off events. For 2503/2523 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5088 event pairs, 21 based on Foata normal form. 13/833 useless extension candidates. Maximal degree in co-relation 3117. Up to 170 conditions per place. [2024-11-28 05:05:22,759 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 91 selfloop transitions, 37 changer transitions 7/229 dead transitions. [2024-11-28 05:05:22,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 229 transitions, 2122 flow [2024-11-28 05:05:22,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:05:22,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 05:05:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 898 transitions. [2024-11-28 05:05:22,763 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7271255060728745 [2024-11-28 05:05:22,763 INFO L175 Difference]: Start difference. First operand has 159 places, 204 transitions, 1566 flow. Second operand 13 states and 898 transitions. [2024-11-28 05:05:22,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 229 transitions, 2122 flow [2024-11-28 05:05:22,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 229 transitions, 2069 flow, removed 11 selfloop flow, removed 8 redundant places. [2024-11-28 05:05:22,795 INFO L231 Difference]: Finished difference. Result has 158 places, 199 transitions, 1552 flow [2024-11-28 05:05:22,796 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=1507, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1552, PETRI_PLACES=158, PETRI_TRANSITIONS=199} [2024-11-28 05:05:22,798 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 60 predicate places. [2024-11-28 05:05:22,798 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 199 transitions, 1552 flow [2024-11-28 05:05:22,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:05:22,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:05:22,799 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:22,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:05:22,799 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 05:05:22,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:22,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1774965859, now seen corresponding path program 1 times [2024-11-28 05:05:22,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:22,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37607108] [2024-11-28 05:05:22,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:22,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:05:22,833 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:05:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:05:22,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 05:05:22,903 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:05:22,904 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2024-11-28 05:05:22,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-28 05:05:22,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-28 05:05:22,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-28 05:05:22,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-28 05:05:22,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2024-11-28 05:05:22,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2024-11-28 05:05:22,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-28 05:05:22,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-28 05:05:22,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-28 05:05:22,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-28 05:05:22,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-28 05:05:22,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-28 05:05:22,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-28 05:05:22,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 05:05:22,910 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:22,990 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 05:05:22,990 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:05:22,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:05:22 BasicIcfg [2024-11-28 05:05:23,002 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:05:23,002 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:05:23,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:05:23,003 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:05:23,004 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:03" (3/4) ... [2024-11-28 05:05:23,009 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 05:05:23,107 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 1. [2024-11-28 05:05:23,157 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:05:23,158 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:05:23,158 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:05:23,159 INFO L158 Benchmark]: Toolchain (without parser) took 21131.92ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 90.3MB in the beginning and 132.1MB in the end (delta: -41.8MB). Peak memory consumption was 109.0MB. Max. memory is 16.1GB. [2024-11-28 05:05:23,160 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:05:23,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1014.75ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 52.7MB in the end (delta: 37.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-28 05:05:23,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.28ms. Allocated memory is still 117.4MB. Free memory was 52.7MB in the beginning and 50.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:05:23,162 INFO L158 Benchmark]: Boogie Preprocessor took 31.39ms. Allocated memory is still 117.4MB. Free memory was 50.4MB in the beginning and 49.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:05:23,163 INFO L158 Benchmark]: RCFGBuilder took 623.54ms. Allocated memory is still 117.4MB. Free memory was 49.0MB in the beginning and 86.6MB in the end (delta: -37.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-11-28 05:05:23,164 INFO L158 Benchmark]: TraceAbstraction took 19242.81ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 86.0MB in the beginning and 140.5MB in the end (delta: -54.5MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. [2024-11-28 05:05:23,164 INFO L158 Benchmark]: Witness Printer took 155.55ms. Allocated memory is still 268.4MB. Free memory was 140.5MB in the beginning and 132.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:05:23,167 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1014.75ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 52.7MB in the end (delta: 37.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.28ms. Allocated memory is still 117.4MB. Free memory was 52.7MB in the beginning and 50.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.39ms. Allocated memory is still 117.4MB. Free memory was 50.4MB in the beginning and 49.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 623.54ms. Allocated memory is still 117.4MB. Free memory was 49.0MB in the beginning and 86.6MB in the end (delta: -37.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 19242.81ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 86.0MB in the beginning and 140.5MB in the end (delta: -54.5MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. * Witness Printer took 155.55ms. Allocated memory is still 268.4MB. Free memory was 140.5MB in the beginning and 132.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1245]: Data race detected Data race detected The following path leads to a data race: [L1227] 0 data *d; VAL [d={0:0}] [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [d={0:0}, m={1:0}] [L1237] 0 pthread_t id; VAL [d={0:0}, m={1:0}] [L1238] 0 data *z; VAL [d={0:0}, m={1:0}] [L1239] 0 d = malloc(sizeof(data)) VAL [d={-2:0}, m={1:0}] [L1240] 0 z = d VAL [d={-2:0}, m={1:0}, z={-2:0}] [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, d={-2:0}, id=-1, m={1:0}, z={-2:0}] [L1243] EXPR 0 d->x VAL [\old(arg)={0:0}, d={-2:0}, id=-1, m={1:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) VAL [\old(arg)={0:0}, d={-2:0}, id=-1, m={1:0}, z={-2:0}] [L1245] EXPR 0 z->y VAL [\old(arg)={0:0}, d={-2:0}, id=-1, m={1:0}, z={-2:0}] [L1231] EXPR 1 d->x VAL [\old(arg)={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1231] 1 d->x = 3 VAL [\old(arg)={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] EXPR 1 d->y VAL [\old(arg)={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [\old(arg)={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1245] 0 printf("%d\n",z->y) VAL [\old(arg)={0:0}, arg={0:0}, d={-2:0}, id=-1, m={1:0}, z={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: d->x = 3 [1231] * C: d->y = 8 [1232] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d = malloc(sizeof(data)) [1239] * C: d->x = 3 [1231] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 129 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.0s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1464 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1060 mSDsluCounter, 424 SdHoareTripleChecker+Invalid, 5.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 360 mSDsCounter, 500 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4784 IncrementalHoareTripleChecker+Invalid, 5284 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 500 mSolverCounterUnsat, 64 mSDtfsCounter, 4784 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1566occurred in iteration=12, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 740 NumberOfCodeBlocks, 737 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 657 ConstructedInterpolants, 0 QuantifiedInterpolants, 4135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 05:05:23,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64250502-a777-4df8-a9a3-009a541f9f19/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)