./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd --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 af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:01:01,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:01:01,154 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:01:01,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:01:01,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:01:01,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:01:01,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:01:01,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:01:01,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:01:01,197 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:01:01,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:01:01,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:01:01,198 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:01:01,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:01:01,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:01:01,199 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:01:01,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:01:01,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:01:01,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:01:01,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:01:01,200 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:01:01,200 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:01:01,201 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:01:01,201 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:01:01,201 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:01:01,201 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:01:01,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:01:01,202 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:01:01,202 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:01:01,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:01:01,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:01:01,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:01:01,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:01:01,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:01:01,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:01:01,203 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:01:01,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:01:01,204 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:01:01,204 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:01:01,204 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:01:01,204 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:01:01,204 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_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd 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 -> af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 [2024-11-13 15:01:01,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:01:01,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:01:01,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:01:01,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:01:01,639 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:01:01,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i Unable to find full path for "g++" [2024-11-13 15:01:04,064 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:01:04,754 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:01:04,758 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2024-11-13 15:01:04,791 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/data/d674308ba/42ca5eef8fb84ac497d83531ed3da656/FLAG1e9b34c8d [2024-11-13 15:01:04,826 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/data/d674308ba/42ca5eef8fb84ac497d83531ed3da656 [2024-11-13 15:01:04,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:01:04,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:01:04,837 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:01:04,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:01:04,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:01:04,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:01:04" (1/1) ... [2024-11-13 15:01:04,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9d763b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:04, skipping insertion in model container [2024-11-13 15:01:04,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:01:04" (1/1) ... [2024-11-13 15:01:04,917 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:01:05,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:01:05,594 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:01:05,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:01:05,785 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:01:05,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05 WrapperNode [2024-11-13 15:01:05,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:01:05,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:01:05,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:01:05,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:01:05,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (1/1) ... [2024-11-13 15:01:05,829 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (1/1) ... [2024-11-13 15:01:05,879 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2024-11-13 15:01:05,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:01:05,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:01:05,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:01:05,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:01:05,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (1/1) ... [2024-11-13 15:01:05,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (1/1) ... [2024-11-13 15:01:05,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (1/1) ... [2024-11-13 15:01:05,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (1/1) ... [2024-11-13 15:01:05,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (1/1) ... [2024-11-13 15:01:05,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (1/1) ... [2024-11-13 15:01:05,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (1/1) ... [2024-11-13 15:01:05,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (1/1) ... [2024-11-13 15:01:05,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:01:05,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:01:05,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:01:05,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:01:05,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (1/1) ... [2024-11-13 15:01:05,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:01:06,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:01:06,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:01:06,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:01:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:01:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:01:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:01:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:01:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:01:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 15:01:06,073 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 15:01:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:01:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:01:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-13 15:01:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:01:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:01:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:01:06,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:01:06,076 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:01:06,273 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:01:06,274 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:01:06,672 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:01:06,672 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:01:06,766 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:01:06,767 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-13 15:01:06,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:01:06 BoogieIcfgContainer [2024-11-13 15:01:06,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:01:06,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:01:06,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:01:06,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:01:06,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:01:04" (1/3) ... [2024-11-13 15:01:06,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1d5206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:01:06, skipping insertion in model container [2024-11-13 15:01:06,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:05" (2/3) ... [2024-11-13 15:01:06,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1d5206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:01:06, skipping insertion in model container [2024-11-13 15:01:06,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:01:06" (3/3) ... [2024-11-13 15:01:06,786 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_41-trylock_racefree.i [2024-11-13 15:01:06,811 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:01:06,814 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_41-trylock_racefree.i that has 2 procedures, 135 locations, 1 initial locations, 7 loop locations, and 7 error locations. [2024-11-13 15:01:06,814 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:01:06,908 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 15:01:06,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 150 transitions, 307 flow [2024-11-13 15:01:07,133 INFO L124 PetriNetUnfolderBase]: 23/213 cut-off events. [2024-11-13 15:01:07,143 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:01:07,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 213 events. 23/213 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 658 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 113. Up to 6 conditions per place. [2024-11-13 15:01:07,160 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 150 transitions, 307 flow [2024-11-13 15:01:07,194 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 150 transitions, 307 flow [2024-11-13 15:01:07,218 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:01:07,243 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;@412b5eee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:01:07,244 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-13 15:01:07,284 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:01:07,284 INFO L124 PetriNetUnfolderBase]: 4/55 cut-off events. [2024-11-13 15:01:07,284 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:01:07,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:07,287 INFO L204 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] [2024-11-13 15:01:07,288 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-13 15:01:07,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:07,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1541975420, now seen corresponding path program 1 times [2024-11-13 15:01:07,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:07,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824419865] [2024-11-13 15:01:07,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:07,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:07,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:07,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824419865] [2024-11-13 15:01:07,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824419865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:07,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:07,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:07,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907961154] [2024-11-13 15:01:07,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:07,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:01:07,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:07,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:01:07,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:01:07,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 150 [2024-11-13 15:01:07,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 150 transitions, 307 flow. Second operand has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 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) [2024-11-13 15:01:07,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:07,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 150 [2024-11-13 15:01:07,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:08,079 INFO L124 PetriNetUnfolderBase]: 27/373 cut-off events. [2024-11-13 15:01:08,079 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 15:01:08,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 373 events. 27/373 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1447 event pairs, 24 based on Foata normal form. 54/389 useless extension candidates. Maximal degree in co-relation 340. Up to 65 conditions per place. [2024-11-13 15:01:08,089 INFO L140 encePairwiseOnDemand]: 137/150 looper letters, 12 selfloop transitions, 0 changer transitions 0/135 dead transitions. [2024-11-13 15:01:08,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 135 transitions, 301 flow [2024-11-13 15:01:08,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:01:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-13 15:01:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 273 transitions. [2024-11-13 15:01:08,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.91 [2024-11-13 15:01:08,121 INFO L175 Difference]: Start difference. First operand has 138 places, 150 transitions, 307 flow. Second operand 2 states and 273 transitions. [2024-11-13 15:01:08,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 135 transitions, 301 flow [2024-11-13 15:01:08,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 135 transitions, 301 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:01:08,144 INFO L231 Difference]: Finished difference. Result has 137 places, 135 transitions, 277 flow [2024-11-13 15:01:08,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=277, PETRI_PLACES=137, PETRI_TRANSITIONS=135} [2024-11-13 15:01:08,156 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, -1 predicate places. [2024-11-13 15:01:08,157 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 135 transitions, 277 flow [2024-11-13 15:01:08,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 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) [2024-11-13 15:01:08,158 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:08,158 INFO L204 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] [2024-11-13 15:01:08,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:01:08,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-13 15:01:08,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:08,162 INFO L85 PathProgramCache]: Analyzing trace with hash 24205615, now seen corresponding path program 1 times [2024-11-13 15:01:08,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:08,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419675065] [2024-11-13 15:01:08,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:08,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:08,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:08,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:08,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419675065] [2024-11-13 15:01:08,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419675065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:08,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:08,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:01:08,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603409504] [2024-11-13 15:01:08,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:08,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:01:08,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:08,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:01:08,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:08,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 150 [2024-11-13 15:01:08,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 135 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2024-11-13 15:01:08,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:08,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 150 [2024-11-13 15:01:08,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:08,763 INFO L124 PetriNetUnfolderBase]: 55/551 cut-off events. [2024-11-13 15:01:08,763 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 15:01:08,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673 conditions, 551 events. 55/551 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2621 event pairs, 35 based on Foata normal form. 1/490 useless extension candidates. Maximal degree in co-relation 669. Up to 108 conditions per place. [2024-11-13 15:01:08,770 INFO L140 encePairwiseOnDemand]: 147/150 looper letters, 22 selfloop transitions, 2 changer transitions 0/141 dead transitions. [2024-11-13 15:01:08,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 141 transitions, 337 flow [2024-11-13 15:01:08,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:01:08,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:01:08,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 379 transitions. [2024-11-13 15:01:08,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8422222222222222 [2024-11-13 15:01:08,774 INFO L175 Difference]: Start difference. First operand has 137 places, 135 transitions, 277 flow. Second operand 3 states and 379 transitions. [2024-11-13 15:01:08,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 141 transitions, 337 flow [2024-11-13 15:01:08,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 141 transitions, 337 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:01:08,786 INFO L231 Difference]: Finished difference. Result has 140 places, 135 transitions, 285 flow [2024-11-13 15:01:08,787 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=285, PETRI_PLACES=140, PETRI_TRANSITIONS=135} [2024-11-13 15:01:08,790 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 2 predicate places. [2024-11-13 15:01:08,791 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 135 transitions, 285 flow [2024-11-13 15:01:08,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2024-11-13 15:01:08,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:08,792 INFO L204 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] [2024-11-13 15:01:08,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:01:08,792 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-13 15:01:08,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:08,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1530594364, now seen corresponding path program 1 times [2024-11-13 15:01:08,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:08,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307097772] [2024-11-13 15:01:08,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:08,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:09,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:09,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307097772] [2024-11-13 15:01:09,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307097772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:09,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:09,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:01:09,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116474681] [2024-11-13 15:01:09,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:09,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:01:09,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:09,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:01:09,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:01:10,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 150 [2024-11-13 15:01:10,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 135 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 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) [2024-11-13 15:01:10,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:10,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 150 [2024-11-13 15:01:10,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:10,656 INFO L124 PetriNetUnfolderBase]: 115/690 cut-off events. [2024-11-13 15:01:10,656 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-13 15:01:10,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 690 events. 115/690 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3898 event pairs, 66 based on Foata normal form. 0/624 useless extension candidates. Maximal degree in co-relation 967. Up to 181 conditions per place. [2024-11-13 15:01:10,667 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 48 selfloop transitions, 5 changer transitions 0/158 dead transitions. [2024-11-13 15:01:10,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 158 transitions, 437 flow [2024-11-13 15:01:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:01:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:01:10,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 690 transitions. [2024-11-13 15:01:10,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7666666666666667 [2024-11-13 15:01:10,679 INFO L175 Difference]: Start difference. First operand has 140 places, 135 transitions, 285 flow. Second operand 6 states and 690 transitions. [2024-11-13 15:01:10,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 158 transitions, 437 flow [2024-11-13 15:01:10,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 158 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:01:10,689 INFO L231 Difference]: Finished difference. Result has 142 places, 134 transitions, 289 flow [2024-11-13 15:01:10,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=289, PETRI_PLACES=142, PETRI_TRANSITIONS=134} [2024-11-13 15:01:10,693 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 4 predicate places. [2024-11-13 15:01:10,693 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 134 transitions, 289 flow [2024-11-13 15:01:10,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 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) [2024-11-13 15:01:10,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:10,694 INFO L204 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] [2024-11-13 15:01:10,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:01:10,695 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-13 15:01:10,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:10,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1979621259, now seen corresponding path program 1 times [2024-11-13 15:01:10,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:10,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172087537] [2024-11-13 15:01:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:10,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:10,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:10,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:10,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172087537] [2024-11-13 15:01:10,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172087537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:10,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:10,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:10,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866369154] [2024-11-13 15:01:10,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:10,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:01:10,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:10,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:01:10,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:10,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 150 [2024-11-13 15:01:10,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 134 transitions, 289 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2024-11-13 15:01:10,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:10,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 150 [2024-11-13 15:01:10,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:11,268 INFO L124 PetriNetUnfolderBase]: 92/797 cut-off events. [2024-11-13 15:01:11,268 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-13 15:01:11,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 797 events. 92/797 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4698 event pairs, 30 based on Foata normal form. 0/725 useless extension candidates. Maximal degree in co-relation 1028. Up to 125 conditions per place. [2024-11-13 15:01:11,277 INFO L140 encePairwiseOnDemand]: 141/150 looper letters, 30 selfloop transitions, 6 changer transitions 0/147 dead transitions. [2024-11-13 15:01:11,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 147 transitions, 390 flow [2024-11-13 15:01:11,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:01:11,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:01:11,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2024-11-13 15:01:11,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.84 [2024-11-13 15:01:11,282 INFO L175 Difference]: Start difference. First operand has 142 places, 134 transitions, 289 flow. Second operand 3 states and 378 transitions. [2024-11-13 15:01:11,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 147 transitions, 390 flow [2024-11-13 15:01:11,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 147 transitions, 380 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:01:11,292 INFO L231 Difference]: Finished difference. Result has 139 places, 136 transitions, 317 flow [2024-11-13 15:01:11,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=317, PETRI_PLACES=139, PETRI_TRANSITIONS=136} [2024-11-13 15:01:11,294 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 1 predicate places. [2024-11-13 15:01:11,295 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 136 transitions, 317 flow [2024-11-13 15:01:11,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2024-11-13 15:01:11,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:11,296 INFO L204 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] [2024-11-13 15:01:11,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:01:11,297 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-13 15:01:11,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:11,301 INFO L85 PathProgramCache]: Analyzing trace with hash -232351523, now seen corresponding path program 1 times [2024-11-13 15:01:11,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:11,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690493615] [2024-11-13 15:01:11,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:11,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:11,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:11,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690493615] [2024-11-13 15:01:11,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690493615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:11,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:11,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:11,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709669069] [2024-11-13 15:01:11,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:11,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:01:11,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:11,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:01:11,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:11,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 150 [2024-11-13 15:01:11,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 136 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2024-11-13 15:01:11,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:11,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 150 [2024-11-13 15:01:11,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:11,753 INFO L124 PetriNetUnfolderBase]: 95/799 cut-off events. [2024-11-13 15:01:11,753 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-13 15:01:11,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 799 events. 95/799 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4784 event pairs, 60 based on Foata normal form. 0/727 useless extension candidates. Maximal degree in co-relation 1127. Up to 189 conditions per place. [2024-11-13 15:01:11,761 INFO L140 encePairwiseOnDemand]: 145/150 looper letters, 27 selfloop transitions, 4 changer transitions 0/143 dead transitions. [2024-11-13 15:01:11,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 143 transitions, 397 flow [2024-11-13 15:01:11,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:01:11,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:01:11,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2024-11-13 15:01:11,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8311111111111111 [2024-11-13 15:01:11,768 INFO L175 Difference]: Start difference. First operand has 139 places, 136 transitions, 317 flow. Second operand 3 states and 374 transitions. [2024-11-13 15:01:11,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 143 transitions, 397 flow [2024-11-13 15:01:11,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 143 transitions, 383 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:01:11,776 INFO L231 Difference]: Finished difference. Result has 141 places, 139 transitions, 337 flow [2024-11-13 15:01:11,776 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=337, PETRI_PLACES=141, PETRI_TRANSITIONS=139} [2024-11-13 15:01:11,780 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 3 predicate places. [2024-11-13 15:01:11,781 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 139 transitions, 337 flow [2024-11-13 15:01:11,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2024-11-13 15:01:11,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:11,782 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:11,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:01:11,783 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-13 15:01:11,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:11,786 INFO L85 PathProgramCache]: Analyzing trace with hash -652344594, now seen corresponding path program 1 times [2024-11-13 15:01:11,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:11,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140261688] [2024-11-13 15:01:11,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:11,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:01:11,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:01:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:01:11,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:01:11,946 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:01:11,948 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-13 15:01:11,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-13 15:01:11,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-13 15:01:11,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-13 15:01:11,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-13 15:01:11,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-13 15:01:11,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-13 15:01:11,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-13 15:01:11,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-13 15:01:11,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-13 15:01:11,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-13 15:01:11,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-13 15:01:11,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:01:11,956 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-13 15:01:11,963 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:01:11,964 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 15:01:12,035 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 15:01:12,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 199 transitions, 414 flow [2024-11-13 15:01:12,128 INFO L124 PetriNetUnfolderBase]: 40/353 cut-off events. [2024-11-13 15:01:12,129 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 15:01:12,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 353 events. 40/353 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1225 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 215. Up to 9 conditions per place. [2024-11-13 15:01:12,133 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 199 transitions, 414 flow [2024-11-13 15:01:12,141 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 199 transitions, 414 flow [2024-11-13 15:01:12,144 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:01:12,146 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;@412b5eee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:01:12,146 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-13 15:01:12,161 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:01:12,161 INFO L124 PetriNetUnfolderBase]: 4/55 cut-off events. [2024-11-13 15:01:12,161 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:01:12,161 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:12,162 INFO L204 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] [2024-11-13 15:01:12,162 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:01:12,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:12,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1792654556, now seen corresponding path program 1 times [2024-11-13 15:01:12,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:12,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353860132] [2024-11-13 15:01:12,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:12,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:12,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:12,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353860132] [2024-11-13 15:01:12,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353860132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:12,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:12,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:12,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325900031] [2024-11-13 15:01:12,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:12,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:01:12,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:12,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:01:12,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:01:12,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 199 [2024-11-13 15:01:12,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 199 transitions, 414 flow. Second operand has 2 states, 2 states have (on average 160.0) internal successors, (320), 2 states have internal predecessors, (320), 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) [2024-11-13 15:01:12,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:12,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 199 [2024-11-13 15:01:12,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:12,978 INFO L124 PetriNetUnfolderBase]: 421/2608 cut-off events. [2024-11-13 15:01:12,979 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-13 15:01:12,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3367 conditions, 2608 events. 421/2608 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 21223 event pairs, 414 based on Foata normal form. 577/2917 useless extension candidates. Maximal degree in co-relation 2797. Up to 716 conditions per place. [2024-11-13 15:01:13,009 INFO L140 encePairwiseOnDemand]: 180/199 looper letters, 20 selfloop transitions, 0 changer transitions 0/178 dead transitions. [2024-11-13 15:01:13,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 178 transitions, 412 flow [2024-11-13 15:01:13,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:01:13,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-13 15:01:13,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 357 transitions. [2024-11-13 15:01:13,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8969849246231156 [2024-11-13 15:01:13,016 INFO L175 Difference]: Start difference. First operand has 182 places, 199 transitions, 414 flow. Second operand 2 states and 357 transitions. [2024-11-13 15:01:13,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 178 transitions, 412 flow [2024-11-13 15:01:13,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 178 transitions, 412 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:01:13,022 INFO L231 Difference]: Finished difference. Result has 181 places, 178 transitions, 372 flow [2024-11-13 15:01:13,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=372, PETRI_PLACES=181, PETRI_TRANSITIONS=178} [2024-11-13 15:01:13,026 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, -1 predicate places. [2024-11-13 15:01:13,026 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 178 transitions, 372 flow [2024-11-13 15:01:13,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 160.0) internal successors, (320), 2 states have internal predecessors, (320), 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) [2024-11-13 15:01:13,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:13,028 INFO L204 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] [2024-11-13 15:01:13,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:01:13,029 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:01:13,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:13,030 INFO L85 PathProgramCache]: Analyzing trace with hash -360269137, now seen corresponding path program 1 times [2024-11-13 15:01:13,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:13,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223759967] [2024-11-13 15:01:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:13,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:13,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:13,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:13,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223759967] [2024-11-13 15:01:13,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223759967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:13,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:13,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:01:13,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140043778] [2024-11-13 15:01:13,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:13,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:01:13,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:13,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:01:13,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:13,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 199 [2024-11-13 15:01:13,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 178 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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) [2024-11-13 15:01:13,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:13,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 199 [2024-11-13 15:01:13,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:14,115 INFO L124 PetriNetUnfolderBase]: 802/4346 cut-off events. [2024-11-13 15:01:14,115 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-13 15:01:14,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5700 conditions, 4346 events. 802/4346 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 41396 event pairs, 348 based on Foata normal form. 1/3947 useless extension candidates. Maximal degree in co-relation 5695. Up to 1303 conditions per place. [2024-11-13 15:01:14,159 INFO L140 encePairwiseOnDemand]: 196/199 looper letters, 31 selfloop transitions, 2 changer transitions 0/185 dead transitions. [2024-11-13 15:01:14,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 185 transitions, 452 flow [2024-11-13 15:01:14,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:01:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:01:14,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 493 transitions. [2024-11-13 15:01:14,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8257956448911222 [2024-11-13 15:01:14,168 INFO L175 Difference]: Start difference. First operand has 181 places, 178 transitions, 372 flow. Second operand 3 states and 493 transitions. [2024-11-13 15:01:14,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 185 transitions, 452 flow [2024-11-13 15:01:14,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 185 transitions, 452 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:01:14,175 INFO L231 Difference]: Finished difference. Result has 184 places, 179 transitions, 384 flow [2024-11-13 15:01:14,177 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=184, PETRI_TRANSITIONS=179} [2024-11-13 15:01:14,179 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 2 predicate places. [2024-11-13 15:01:14,180 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 179 transitions, 384 flow [2024-11-13 15:01:14,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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) [2024-11-13 15:01:14,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:14,181 INFO L204 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] [2024-11-13 15:01:14,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:01:14,181 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:01:14,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:14,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1798188157, now seen corresponding path program 1 times [2024-11-13 15:01:14,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:14,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001321689] [2024-11-13 15:01:14,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:14,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:14,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:14,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001321689] [2024-11-13 15:01:14,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001321689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:14,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:14,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:01:14,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764765996] [2024-11-13 15:01:14,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:14,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:01:14,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:14,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:01:14,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:01:14,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 199 [2024-11-13 15:01:14,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 179 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 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) [2024-11-13 15:01:14,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:14,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 199 [2024-11-13 15:01:14,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:16,578 INFO L124 PetriNetUnfolderBase]: 1739/6871 cut-off events. [2024-11-13 15:01:16,578 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-13 15:01:16,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9842 conditions, 6871 events. 1739/6871 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 68833 event pairs, 760 based on Foata normal form. 0/6170 useless extension candidates. Maximal degree in co-relation 9835. Up to 2015 conditions per place. [2024-11-13 15:01:16,646 INFO L140 encePairwiseOnDemand]: 193/199 looper letters, 80 selfloop transitions, 6 changer transitions 0/226 dead transitions. [2024-11-13 15:01:16,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 226 transitions, 650 flow [2024-11-13 15:01:16,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:01:16,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:01:16,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 932 transitions. [2024-11-13 15:01:16,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7805695142378559 [2024-11-13 15:01:16,652 INFO L175 Difference]: Start difference. First operand has 184 places, 179 transitions, 384 flow. Second operand 6 states and 932 transitions. [2024-11-13 15:01:16,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 226 transitions, 650 flow [2024-11-13 15:01:16,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 226 transitions, 648 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:01:16,660 INFO L231 Difference]: Finished difference. Result has 187 places, 178 transitions, 392 flow [2024-11-13 15:01:16,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=392, PETRI_PLACES=187, PETRI_TRANSITIONS=178} [2024-11-13 15:01:16,664 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 5 predicate places. [2024-11-13 15:01:16,664 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 178 transitions, 392 flow [2024-11-13 15:01:16,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 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) [2024-11-13 15:01:16,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:16,666 INFO L204 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] [2024-11-13 15:01:16,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:01:16,667 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:01:16,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:16,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2141834906, now seen corresponding path program 1 times [2024-11-13 15:01:16,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:16,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073191654] [2024-11-13 15:01:16,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:16,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:16,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:16,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073191654] [2024-11-13 15:01:16,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073191654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:16,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:16,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:16,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338583174] [2024-11-13 15:01:16,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:16,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:01:16,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:16,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:01:16,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:16,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 199 [2024-11-13 15:01:16,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 178 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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) [2024-11-13 15:01:16,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:16,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 199 [2024-11-13 15:01:16,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:19,948 INFO L124 PetriNetUnfolderBase]: 4085/14798 cut-off events. [2024-11-13 15:01:19,949 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2024-11-13 15:01:20,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21545 conditions, 14798 events. 4085/14798 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 164476 event pairs, 1409 based on Foata normal form. 0/13249 useless extension candidates. Maximal degree in co-relation 21538. Up to 3578 conditions per place. [2024-11-13 15:01:20,077 INFO L140 encePairwiseOnDemand]: 180/199 looper letters, 58 selfloop transitions, 14 changer transitions 0/211 dead transitions. [2024-11-13 15:01:20,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 211 transitions, 613 flow [2024-11-13 15:01:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:01:20,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:01:20,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2024-11-13 15:01:20,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8324958123953099 [2024-11-13 15:01:20,081 INFO L175 Difference]: Start difference. First operand has 187 places, 178 transitions, 392 flow. Second operand 3 states and 497 transitions. [2024-11-13 15:01:20,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 211 transitions, 613 flow [2024-11-13 15:01:20,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 211 transitions, 601 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:01:20,089 INFO L231 Difference]: Finished difference. Result has 186 places, 192 transitions, 502 flow [2024-11-13 15:01:20,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=186, PETRI_TRANSITIONS=192} [2024-11-13 15:01:20,090 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 4 predicate places. [2024-11-13 15:01:20,090 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 192 transitions, 502 flow [2024-11-13 15:01:20,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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) [2024-11-13 15:01:20,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:20,091 INFO L204 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] [2024-11-13 15:01:20,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:01:20,092 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:01:20,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:20,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1811203531, now seen corresponding path program 1 times [2024-11-13 15:01:20,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:20,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392669503] [2024-11-13 15:01:20,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:20,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:20,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:20,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:20,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392669503] [2024-11-13 15:01:20,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392669503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:20,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:20,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:20,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610443924] [2024-11-13 15:01:20,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:20,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:01:20,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:20,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:01:20,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:20,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 199 [2024-11-13 15:01:20,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 192 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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) [2024-11-13 15:01:20,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:20,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 199 [2024-11-13 15:01:20,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:23,409 INFO L124 PetriNetUnfolderBase]: 4047/16489 cut-off events. [2024-11-13 15:01:23,410 INFO L125 PetriNetUnfolderBase]: For 4316/4486 co-relation queries the response was YES. [2024-11-13 15:01:23,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27245 conditions, 16489 events. 4047/16489 cut-off events. For 4316/4486 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 194677 event pairs, 2517 based on Foata normal form. 46/14989 useless extension candidates. Maximal degree in co-relation 27237. Up to 5540 conditions per place. [2024-11-13 15:01:23,543 INFO L140 encePairwiseOnDemand]: 190/199 looper letters, 52 selfloop transitions, 14 changer transitions 0/216 dead transitions. [2024-11-13 15:01:23,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 216 transitions, 720 flow [2024-11-13 15:01:23,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:01:23,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:01:23,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2024-11-13 15:01:23,547 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8224455611390284 [2024-11-13 15:01:23,547 INFO L175 Difference]: Start difference. First operand has 186 places, 192 transitions, 502 flow. Second operand 3 states and 491 transitions. [2024-11-13 15:01:23,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 216 transitions, 720 flow [2024-11-13 15:01:23,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 216 transitions, 682 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:01:23,565 INFO L231 Difference]: Finished difference. Result has 188 places, 204 transitions, 600 flow [2024-11-13 15:01:23,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=600, PETRI_PLACES=188, PETRI_TRANSITIONS=204} [2024-11-13 15:01:23,567 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 6 predicate places. [2024-11-13 15:01:23,567 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 204 transitions, 600 flow [2024-11-13 15:01:23,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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) [2024-11-13 15:01:23,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:23,568 INFO L204 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] [2024-11-13 15:01:23,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:01:23,569 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:01:23,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:23,569 INFO L85 PathProgramCache]: Analyzing trace with hash -827593789, now seen corresponding path program 1 times [2024-11-13 15:01:23,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:23,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270124546] [2024-11-13 15:01:23,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:23,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:23,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:23,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270124546] [2024-11-13 15:01:23,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270124546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:01:23,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246314931] [2024-11-13 15:01:23,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:23,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:01:23,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:01:23,736 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:01:23,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:01:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:23,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:01:23,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:24,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:24,119 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:01:24,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:24,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246314931] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:01:24,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:01:24,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 15:01:24,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368945104] [2024-11-13 15:01:24,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:01:24,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:01:24,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:24,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:01:24,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:01:24,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 199 [2024-11-13 15:01:24,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 204 transitions, 600 flow. Second operand has 10 states, 10 states have (on average 152.5) internal successors, (1525), 10 states have internal predecessors, (1525), 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) [2024-11-13 15:01:24,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:24,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 199 [2024-11-13 15:01:24,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:25,312 INFO L124 PetriNetUnfolderBase]: 703/3069 cut-off events. [2024-11-13 15:01:25,313 INFO L125 PetriNetUnfolderBase]: For 310/314 co-relation queries the response was YES. [2024-11-13 15:01:25,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4788 conditions, 3069 events. 703/3069 cut-off events. For 310/314 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 25936 event pairs, 61 based on Foata normal form. 104/3013 useless extension candidates. Maximal degree in co-relation 4779. Up to 478 conditions per place. [2024-11-13 15:01:25,340 INFO L140 encePairwiseOnDemand]: 194/199 looper letters, 72 selfloop transitions, 7 changer transitions 0/208 dead transitions. [2024-11-13 15:01:25,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 208 transitions, 720 flow [2024-11-13 15:01:25,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:01:25,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 15:01:25,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1431 transitions. [2024-11-13 15:01:25,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7989949748743719 [2024-11-13 15:01:25,347 INFO L175 Difference]: Start difference. First operand has 188 places, 204 transitions, 600 flow. Second operand 9 states and 1431 transitions. [2024-11-13 15:01:25,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 208 transitions, 720 flow [2024-11-13 15:01:25,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 208 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:01:25,359 INFO L231 Difference]: Finished difference. Result has 149 places, 152 transitions, 444 flow [2024-11-13 15:01:25,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=444, PETRI_PLACES=149, PETRI_TRANSITIONS=152} [2024-11-13 15:01:25,361 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, -33 predicate places. [2024-11-13 15:01:25,361 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 152 transitions, 444 flow [2024-11-13 15:01:25,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.5) internal successors, (1525), 10 states have internal predecessors, (1525), 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) [2024-11-13 15:01:25,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:25,364 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:25,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 15:01:25,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cbc530-8de6-4782-99c0-10f90f53a249/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 15:01:25,565 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:01:25,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:25,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1856695802, now seen corresponding path program 1 times [2024-11-13 15:01:25,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:25,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597190409] [2024-11-13 15:01:25,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:25,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 15:01:25,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:25,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597190409] [2024-11-13 15:01:25,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597190409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:25,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:25,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:25,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511983422] [2024-11-13 15:01:25,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:25,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:01:25,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:25,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:01:25,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:25,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 199 [2024-11-13 15:01:25,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 152 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2024-11-13 15:01:25,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:25,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 199 [2024-11-13 15:01:25,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:25,967 INFO L124 PetriNetUnfolderBase]: 260/1293 cut-off events. [2024-11-13 15:01:25,967 INFO L125 PetriNetUnfolderBase]: For 456/477 co-relation queries the response was YES. [2024-11-13 15:01:25,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2339 conditions, 1293 events. 260/1293 cut-off events. For 456/477 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8705 event pairs, 132 based on Foata normal form. 7/1208 useless extension candidates. Maximal degree in co-relation 2330. Up to 459 conditions per place. [2024-11-13 15:01:25,976 INFO L140 encePairwiseOnDemand]: 191/199 looper letters, 42 selfloop transitions, 12 changer transitions 0/166 dead transitions. [2024-11-13 15:01:25,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 166 transitions, 596 flow [2024-11-13 15:01:25,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:01:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:01:25,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2024-11-13 15:01:25,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7989949748743719 [2024-11-13 15:01:25,980 INFO L175 Difference]: Start difference. First operand has 149 places, 152 transitions, 444 flow. Second operand 3 states and 477 transitions. [2024-11-13 15:01:25,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 166 transitions, 596 flow [2024-11-13 15:01:25,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 166 transitions, 581 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-13 15:01:25,986 INFO L231 Difference]: Finished difference. Result has 148 places, 160 transitions, 527 flow [2024-11-13 15:01:25,986 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=527, PETRI_PLACES=148, PETRI_TRANSITIONS=160} [2024-11-13 15:01:25,987 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, -34 predicate places. [2024-11-13 15:01:25,987 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 160 transitions, 527 flow [2024-11-13 15:01:25,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2024-11-13 15:01:25,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:25,988 INFO L204 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] [2024-11-13 15:01:25,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:01:25,988 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:01:25,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:25,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1062956035, now seen corresponding path program 1 times [2024-11-13 15:01:25,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:25,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95325180] [2024-11-13 15:01:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:25,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:26,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:26,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:26,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95325180] [2024-11-13 15:01:26,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95325180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:26,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:26,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:26,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321520672] [2024-11-13 15:01:26,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:26,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:01:26,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:26,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:01:26,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:26,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 199 [2024-11-13 15:01:26,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 160 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2024-11-13 15:01:26,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:26,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 199 [2024-11-13 15:01:26,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:26,398 INFO L124 PetriNetUnfolderBase]: 291/1365 cut-off events. [2024-11-13 15:01:26,399 INFO L125 PetriNetUnfolderBase]: For 1171/1206 co-relation queries the response was YES. [2024-11-13 15:01:26,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2793 conditions, 1365 events. 291/1365 cut-off events. For 1171/1206 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9382 event pairs, 134 based on Foata normal form. 9/1298 useless extension candidates. Maximal degree in co-relation 2784. Up to 501 conditions per place. [2024-11-13 15:01:26,411 INFO L140 encePairwiseOnDemand]: 191/199 looper letters, 49 selfloop transitions, 12 changer transitions 0/175 dead transitions. [2024-11-13 15:01:26,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 175 transitions, 716 flow [2024-11-13 15:01:26,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:01:26,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:01:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 478 transitions. [2024-11-13 15:01:26,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8006700167504187 [2024-11-13 15:01:26,415 INFO L175 Difference]: Start difference. First operand has 148 places, 160 transitions, 527 flow. Second operand 3 states and 478 transitions. [2024-11-13 15:01:26,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 175 transitions, 716 flow [2024-11-13 15:01:26,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 175 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:01:26,421 INFO L231 Difference]: Finished difference. Result has 150 places, 168 transitions, 613 flow [2024-11-13 15:01:26,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=613, PETRI_PLACES=150, PETRI_TRANSITIONS=168} [2024-11-13 15:01:26,423 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, -32 predicate places. [2024-11-13 15:01:26,423 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 168 transitions, 613 flow [2024-11-13 15:01:26,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2024-11-13 15:01:26,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:26,424 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:26,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:01:26,425 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:01:26,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:26,425 INFO L85 PathProgramCache]: Analyzing trace with hash -254419222, now seen corresponding path program 1 times [2024-11-13 15:01:26,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:26,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104667110] [2024-11-13 15:01:26,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:26,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:01:26,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:01:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:01:26,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:01:26,524 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:01:26,525 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-13 15:01:26,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-13 15:01:26,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-13 15:01:26,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-13 15:01:26,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-13 15:01:26,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-13 15:01:26,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-13 15:01:26,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-13 15:01:26,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-13 15:01:26,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-13 15:01:26,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-13 15:01:26,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-13 15:01:26,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-13 15:01:26,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-13 15:01:26,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-13 15:01:26,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-13 15:01:26,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:01:26,530 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:26,531 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:01:26,531 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-13 15:01:26,595 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 15:01:26,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 248 transitions, 523 flow [2024-11-13 15:01:26,701 INFO L124 PetriNetUnfolderBase]: 62/538 cut-off events. [2024-11-13 15:01:26,702 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-13 15:01:26,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 538 events. 62/538 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2046 event pairs, 1 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 361. Up to 16 conditions per place. [2024-11-13 15:01:26,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 226 places, 248 transitions, 523 flow [2024-11-13 15:01:26,712 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 226 places, 248 transitions, 523 flow [2024-11-13 15:01:26,714 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:01:26,715 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@412b5eee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:01:26,715 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-13 15:01:26,722 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:01:26,722 INFO L124 PetriNetUnfolderBase]: 4/55 cut-off events. [2024-11-13 15:01:26,722 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:01:26,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:26,723 INFO L204 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] [2024-11-13 15:01:26,723 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 15:01:26,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:26,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1975562204, now seen corresponding path program 1 times [2024-11-13 15:01:26,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:26,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135087100] [2024-11-13 15:01:26,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:26,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:26,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:26,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135087100] [2024-11-13 15:01:26,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135087100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:26,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:26,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:26,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055674188] [2024-11-13 15:01:26,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:26,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:01:26,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:26,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:01:26,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:01:26,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 248 [2024-11-13 15:01:26,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 248 transitions, 523 flow. Second operand has 2 states, 2 states have (on average 195.0) internal successors, (390), 2 states have internal predecessors, (390), 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) [2024-11-13 15:01:26,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:26,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 248 [2024-11-13 15:01:26,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:30,705 INFO L124 PetriNetUnfolderBase]: 4833/20261 cut-off events. [2024-11-13 15:01:30,705 INFO L125 PetriNetUnfolderBase]: For 940/940 co-relation queries the response was YES. [2024-11-13 15:01:30,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27686 conditions, 20261 events. 4833/20261 cut-off events. For 940/940 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 243127 event pairs, 4795 based on Foata normal form. 5465/23780 useless extension candidates. Maximal degree in co-relation 23268. Up to 6995 conditions per place. [2024-11-13 15:01:31,601 INFO L140 encePairwiseOnDemand]: 223/248 looper letters, 28 selfloop transitions, 0 changer transitions 0/221 dead transitions. [2024-11-13 15:01:31,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 221 transitions, 525 flow [2024-11-13 15:01:31,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:01:31,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-13 15:01:31,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 441 transitions. [2024-11-13 15:01:31,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8891129032258065 [2024-11-13 15:01:31,604 INFO L175 Difference]: Start difference. First operand has 226 places, 248 transitions, 523 flow. Second operand 2 states and 441 transitions. [2024-11-13 15:01:31,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 221 transitions, 525 flow [2024-11-13 15:01:31,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 221 transitions, 525 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:01:31,613 INFO L231 Difference]: Finished difference. Result has 225 places, 221 transitions, 469 flow [2024-11-13 15:01:31,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=469, PETRI_PLACES=225, PETRI_TRANSITIONS=221} [2024-11-13 15:01:31,618 INFO L277 CegarLoopForPetriNet]: 226 programPoint places, -1 predicate places. [2024-11-13 15:01:31,618 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 221 transitions, 469 flow [2024-11-13 15:01:31,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 195.0) internal successors, (390), 2 states have internal predecessors, (390), 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) [2024-11-13 15:01:31,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:31,619 INFO L204 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] [2024-11-13 15:01:31,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:01:31,620 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 15:01:31,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:31,620 INFO L85 PathProgramCache]: Analyzing trace with hash -40851793, now seen corresponding path program 1 times [2024-11-13 15:01:31,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:31,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545398734] [2024-11-13 15:01:31,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:31,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:31,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:31,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545398734] [2024-11-13 15:01:31,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545398734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:31,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:31,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:01:31,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066561669] [2024-11-13 15:01:31,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:31,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:01:31,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:31,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:01:31,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:31,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 248 [2024-11-13 15:01:31,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 221 transitions, 469 flow. Second operand has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2024-11-13 15:01:31,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:31,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 248 [2024-11-13 15:01:31,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:37,544 INFO L124 PetriNetUnfolderBase]: 8969/35507 cut-off events. [2024-11-13 15:01:37,545 INFO L125 PetriNetUnfolderBase]: For 937/937 co-relation queries the response was YES. [2024-11-13 15:01:37,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48746 conditions, 35507 events. 8969/35507 cut-off events. For 937/937 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 459333 event pairs, 8324 based on Foata normal form. 1/32099 useless extension candidates. Maximal degree in co-relation 48740. Up to 12802 conditions per place. [2024-11-13 15:01:37,952 INFO L140 encePairwiseOnDemand]: 245/248 looper letters, 39 selfloop transitions, 2 changer transitions 0/228 dead transitions. [2024-11-13 15:01:37,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 228 transitions, 565 flow [2024-11-13 15:01:37,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:01:37,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:01:37,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 606 transitions. [2024-11-13 15:01:37,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8145161290322581 [2024-11-13 15:01:37,956 INFO L175 Difference]: Start difference. First operand has 225 places, 221 transitions, 469 flow. Second operand 3 states and 606 transitions. [2024-11-13 15:01:37,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 228 transitions, 565 flow [2024-11-13 15:01:37,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 228 transitions, 565 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:01:37,966 INFO L231 Difference]: Finished difference. Result has 228 places, 222 transitions, 481 flow [2024-11-13 15:01:37,967 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=481, PETRI_PLACES=228, PETRI_TRANSITIONS=222} [2024-11-13 15:01:37,968 INFO L277 CegarLoopForPetriNet]: 226 programPoint places, 2 predicate places. [2024-11-13 15:01:37,968 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 222 transitions, 481 flow [2024-11-13 15:01:37,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2024-11-13 15:01:37,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:37,970 INFO L204 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] [2024-11-13 15:01:37,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:01:37,970 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 15:01:37,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:37,971 INFO L85 PathProgramCache]: Analyzing trace with hash -486184837, now seen corresponding path program 1 times [2024-11-13 15:01:37,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:37,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343348367] [2024-11-13 15:01:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:37,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:38,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:38,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:38,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343348367] [2024-11-13 15:01:38,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343348367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:38,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:38,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:01:38,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067559796] [2024-11-13 15:01:38,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:38,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:01:38,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:38,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:01:38,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:01:38,771 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 248 [2024-11-13 15:01:38,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 222 transitions, 481 flow. Second operand has 6 states, 6 states have (on average 177.5) internal successors, (1065), 6 states have internal predecessors, (1065), 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) [2024-11-13 15:01:38,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:38,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 248 [2024-11-13 15:01:38,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:01:49,481 INFO L124 PetriNetUnfolderBase]: 19695/66085 cut-off events. [2024-11-13 15:01:49,482 INFO L125 PetriNetUnfolderBase]: For 1507/1507 co-relation queries the response was YES. [2024-11-13 15:01:49,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95011 conditions, 66085 events. 19695/66085 cut-off events. For 1507/1507 co-relation queries the response was YES. Maximal size of possible extension queue 1361. Compared 893464 event pairs, 7382 based on Foata normal form. 0/60331 useless extension candidates. Maximal degree in co-relation 95003. Up to 20118 conditions per place. [2024-11-13 15:01:49,995 INFO L140 encePairwiseOnDemand]: 242/248 looper letters, 112 selfloop transitions, 6 changer transitions 0/293 dead transitions. [2024-11-13 15:01:49,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 293 transitions, 859 flow [2024-11-13 15:01:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:01:49,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:01:49,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1174 transitions. [2024-11-13 15:01:49,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7889784946236559 [2024-11-13 15:01:49,999 INFO L175 Difference]: Start difference. First operand has 228 places, 222 transitions, 481 flow. Second operand 6 states and 1174 transitions. [2024-11-13 15:01:49,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 293 transitions, 859 flow [2024-11-13 15:01:50,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 293 transitions, 857 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:01:50,009 INFO L231 Difference]: Finished difference. Result has 231 places, 221 transitions, 489 flow [2024-11-13 15:01:50,010 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=489, PETRI_PLACES=231, PETRI_TRANSITIONS=221} [2024-11-13 15:01:50,010 INFO L277 CegarLoopForPetriNet]: 226 programPoint places, 5 predicate places. [2024-11-13 15:01:50,010 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 221 transitions, 489 flow [2024-11-13 15:01:50,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.5) internal successors, (1065), 6 states have internal predecessors, (1065), 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) [2024-11-13 15:01:50,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:01:50,012 INFO L204 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] [2024-11-13 15:01:50,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 15:01:50,012 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 15:01:50,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1068549577, now seen corresponding path program 1 times [2024-11-13 15:01:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:50,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824121280] [2024-11-13 15:01:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:50,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:01:50,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:50,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824121280] [2024-11-13 15:01:50,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824121280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:50,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:50,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:50,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875284458] [2024-11-13 15:01:50,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:50,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:01:50,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:50,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:01:50,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:50,141 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 248 [2024-11-13 15:01:50,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 221 transitions, 489 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2024-11-13 15:01:50,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:01:50,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 248 [2024-11-13 15:01:50,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand