./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack_longest-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack_longest-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU --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 5773bc320dd9dee5d943610df8c4ec3040864edddf388dd42a51d37167245e47 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:44,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:44,896 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 21:59:44,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:44,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:44,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:44,924 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:44,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:44,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:44,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:44,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:44,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:44,926 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:44,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:44,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:44,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:44,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:44,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:44,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:44,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:44,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:44,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:44,930 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 21:59:44,931 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:44,931 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:44,931 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:44,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:44,932 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:44,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:44,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:44,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:44,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:44,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:44,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:44,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:44,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:44,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:44,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:44,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:44,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:44,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:44,940 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5773bc320dd9dee5d943610df8c4ec3040864edddf388dd42a51d37167245e47 [2024-10-31 21:59:45,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:45,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:45,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:45,259 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:45,260 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:45,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread/stack_longest-2.i Unable to find full path for "g++" [2024-10-31 21:59:47,420 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:47,695 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:47,699 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/sv-benchmarks/c/pthread/stack_longest-2.i [2024-10-31 21:59:47,724 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/data/c6071864e/7464932257a449d1abccaa38a15b7972/FLAG6eef6d66f [2024-10-31 21:59:48,003 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/data/c6071864e/7464932257a449d1abccaa38a15b7972 [2024-10-31 21:59:48,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:48,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:48,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:48,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:48,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:48,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:48,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53485647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48, skipping insertion in model container [2024-10-31 21:59:48,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:48,088 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:48,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:48,862 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:48,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:49,125 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:49,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49 WrapperNode [2024-10-31 21:59:49,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:49,128 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:49,128 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:49,128 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:49,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (1/1) ... [2024-10-31 21:59:49,187 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (1/1) ... [2024-10-31 21:59:49,350 INFO L138 Inliner]: procedures = 277, calls = 831, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 983 [2024-10-31 21:59:49,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:49,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:49,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:49,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:49,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (1/1) ... [2024-10-31 21:59:49,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (1/1) ... [2024-10-31 21:59:49,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (1/1) ... [2024-10-31 21:59:49,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (1/1) ... [2024-10-31 21:59:49,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (1/1) ... [2024-10-31 21:59:49,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (1/1) ... [2024-10-31 21:59:49,448 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (1/1) ... [2024-10-31 21:59:49,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (1/1) ... [2024-10-31 21:59:49,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:49,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:49,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:49,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:49,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (1/1) ... [2024-10-31 21:59:49,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:49,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:49,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:49,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9541b750-9c1f-489b-832a-3f5252d5284a/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-31 21:59:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-31 21:59:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-31 21:59:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-31 21:59:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 21:59:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 21:59:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 21:59:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 21:59:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 21:59:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:49,553 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:59:49,703 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:49,705 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:51,348 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:59:51,348 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:51,415 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:51,419 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 21:59:51,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:51 BoogieIcfgContainer [2024-10-31 21:59:51,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:51,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:51,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:51,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:51,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:48" (1/3) ... [2024-10-31 21:59:51,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4f9829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:51, skipping insertion in model container [2024-10-31 21:59:51,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:49" (2/3) ... [2024-10-31 21:59:51,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4f9829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:51, skipping insertion in model container [2024-10-31 21:59:51,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:51" (3/3) ... [2024-10-31 21:59:51,429 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longest-2.i [2024-10-31 21:59:51,448 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:51,449 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-10-31 21:59:51,449 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:59:51,761 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 21:59:51,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1000 places, 1005 transitions, 2024 flow [2024-10-31 21:59:52,441 INFO L124 PetriNetUnfolderBase]: 12/1003 cut-off events. [2024-10-31 21:59:52,442 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 21:59:52,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1012 conditions, 1003 events. 12/1003 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 487 event pairs, 0 based on Foata normal form. 0/980 useless extension candidates. Maximal degree in co-relation 919. Up to 3 conditions per place. [2024-10-31 21:59:52,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 1000 places, 1005 transitions, 2024 flow [2024-10-31 21:59:52,470 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 993 places, 998 transitions, 2005 flow [2024-10-31 21:59:52,482 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:52,490 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;@4108dd2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:52,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-10-31 21:59:52,729 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:52,730 INFO L124 PetriNetUnfolderBase]: 3/865 cut-off events. [2024-10-31 21:59:52,730 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:59:52,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:52,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:52,732 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 21:59:52,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:52,738 INFO L85 PathProgramCache]: Analyzing trace with hash -488187874, now seen corresponding path program 1 times [2024-10-31 21:59:52,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:52,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574327105] [2024-10-31 21:59:52,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:52,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:54,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:54,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574327105] [2024-10-31 21:59:54,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574327105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:54,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:54,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:54,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512078725] [2024-10-31 21:59:54,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:54,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:54,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:54,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:54,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:54,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 965 out of 1005 [2024-10-31 21:59:54,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 993 places, 998 transitions, 2005 flow. Second operand has 3 states, 3 states have (on average 966.6666666666666) internal successors, (2900), 3 states have internal predecessors, (2900), 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) [2024-10-31 21:59:54,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:54,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 965 of 1005 [2024-10-31 21:59:54,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:56,154 INFO L124 PetriNetUnfolderBase]: 274/3168 cut-off events. [2024-10-31 21:59:56,155 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-10-31 21:59:56,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3782 conditions, 3168 events. 274/3168 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 17007 event pairs, 76 based on Foata normal form. 211/3135 useless extension candidates. Maximal degree in co-relation 2779. Up to 405 conditions per place. [2024-10-31 21:59:56,181 INFO L140 encePairwiseOnDemand]: 975/1005 looper letters, 36 selfloop transitions, 16 changer transitions 0/1007 dead transitions. [2024-10-31 21:59:56,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 989 places, 1007 transitions, 2133 flow [2024-10-31 21:59:56,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:56,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2968 transitions. [2024-10-31 21:59:56,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9844112769485904 [2024-10-31 21:59:56,209 INFO L175 Difference]: Start difference. First operand has 993 places, 998 transitions, 2005 flow. Second operand 3 states and 2968 transitions. [2024-10-31 21:59:56,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 989 places, 1007 transitions, 2133 flow [2024-10-31 21:59:56,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 986 places, 1007 transitions, 2125 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 21:59:56,244 INFO L231 Difference]: Finished difference. Result has 988 places, 1001 transitions, 2116 flow [2024-10-31 21:59:56,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1005, PETRI_DIFFERENCE_MINUEND_FLOW=1974, PETRI_DIFFERENCE_MINUEND_PLACES=984, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=985, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=969, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2116, PETRI_PLACES=988, PETRI_TRANSITIONS=1001} [2024-10-31 21:59:56,252 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -5 predicate places. [2024-10-31 21:59:56,253 INFO L471 AbstractCegarLoop]: Abstraction has has 988 places, 1001 transitions, 2116 flow [2024-10-31 21:59:56,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 966.6666666666666) internal successors, (2900), 3 states have internal predecessors, (2900), 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) [2024-10-31 21:59:56,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:56,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:56,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:56,257 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 21:59:56,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:56,259 INFO L85 PathProgramCache]: Analyzing trace with hash 373282864, now seen corresponding path program 1 times [2024-10-31 21:59:56,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:56,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197981088] [2024-10-31 21:59:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:56,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:57,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:57,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197981088] [2024-10-31 21:59:57,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197981088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:57,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:57,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:57,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501287141] [2024-10-31 21:59:57,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:57,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:57,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:57,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:57,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:57,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 981 out of 1005 [2024-10-31 21:59:57,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 988 places, 1001 transitions, 2116 flow. Second operand has 3 states, 3 states have (on average 983.3333333333334) internal successors, (2950), 3 states have internal predecessors, (2950), 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) [2024-10-31 21:59:57,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:57,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 981 of 1005 [2024-10-31 21:59:57,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:59,325 INFO L124 PetriNetUnfolderBase]: 277/3819 cut-off events. [2024-10-31 21:59:59,326 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2024-10-31 21:59:59,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4673 conditions, 3819 events. 277/3819 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22742 event pairs, 91 based on Foata normal form. 22/3589 useless extension candidates. Maximal degree in co-relation 3628. Up to 350 conditions per place. [2024-10-31 21:59:59,350 INFO L140 encePairwiseOnDemand]: 1000/1005 looper letters, 18 selfloop transitions, 3 changer transitions 0/1008 dead transitions. [2024-10-31 21:59:59,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 990 places, 1008 transitions, 2175 flow [2024-10-31 21:59:59,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2966 transitions. [2024-10-31 21:59:59,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9837479270315092 [2024-10-31 21:59:59,357 INFO L175 Difference]: Start difference. First operand has 988 places, 1001 transitions, 2116 flow. Second operand 3 states and 2966 transitions. [2024-10-31 21:59:59,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 990 places, 1008 transitions, 2175 flow [2024-10-31 21:59:59,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 988 places, 1008 transitions, 2143 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:59,386 INFO L231 Difference]: Finished difference. Result has 989 places, 1002 transitions, 2101 flow [2024-10-31 21:59:59,388 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1005, PETRI_DIFFERENCE_MINUEND_FLOW=2084, PETRI_DIFFERENCE_MINUEND_PLACES=986, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1001, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=998, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2101, PETRI_PLACES=989, PETRI_TRANSITIONS=1002} [2024-10-31 21:59:59,390 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -4 predicate places. [2024-10-31 21:59:59,391 INFO L471 AbstractCegarLoop]: Abstraction has has 989 places, 1002 transitions, 2101 flow [2024-10-31 21:59:59,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 983.3333333333334) internal successors, (2950), 3 states have internal predecessors, (2950), 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) [2024-10-31 21:59:59,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:59,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:59,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:59,394 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 21:59:59,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:59,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1234556900, now seen corresponding path program 1 times [2024-10-31 21:59:59,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:59,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992848713] [2024-10-31 21:59:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:59,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:04,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:04,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992848713] [2024-10-31 22:00:04,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992848713] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:04,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:04,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:04,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503227094] [2024-10-31 22:00:04,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:04,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:04,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:04,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:04,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:04,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 971 out of 1005 [2024-10-31 22:00:04,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 989 places, 1002 transitions, 2101 flow. Second operand has 6 states, 6 states have (on average 972.8333333333334) internal successors, (5837), 6 states have internal predecessors, (5837), 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) [2024-10-31 22:00:04,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:04,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 971 of 1005 [2024-10-31 22:00:04,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:06,610 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([2184] L1008-3-->L1013-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][866], [Black: 1010#(= ~top~0 0), 999#true, 14#L1022-4true, 1012#true, 294#L959-1true, 631#L1013-2true, 1008#true, Black: 1003#true]) [2024-10-31 22:00:06,610 INFO L294 olderBase$Statistics]: this new event has 1028 ancestors and is cut-off event [2024-10-31 22:00:06,610 INFO L297 olderBase$Statistics]: existing Event has 920 ancestors and is cut-off event [2024-10-31 22:00:06,611 INFO L297 olderBase$Statistics]: existing Event has 931 ancestors and is cut-off event [2024-10-31 22:00:06,611 INFO L297 olderBase$Statistics]: existing Event has 959 ancestors and is cut-off event [2024-10-31 22:00:06,611 INFO L124 PetriNetUnfolderBase]: 556/4945 cut-off events. [2024-10-31 22:00:06,612 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-10-31 22:00:06,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6520 conditions, 4945 events. 556/4945 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 33455 event pairs, 211 based on Foata normal form. 0/4606 useless extension candidates. Maximal degree in co-relation 5356. Up to 771 conditions per place. [2024-10-31 22:00:06,648 INFO L140 encePairwiseOnDemand]: 994/1005 looper letters, 35 selfloop transitions, 22 changer transitions 0/1035 dead transitions. [2024-10-31 22:00:06,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 994 places, 1035 transitions, 2289 flow [2024-10-31 22:00:06,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:06,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:06,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5884 transitions. [2024-10-31 22:00:06,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.975787728026534 [2024-10-31 22:00:06,661 INFO L175 Difference]: Start difference. First operand has 989 places, 1002 transitions, 2101 flow. Second operand 6 states and 5884 transitions. [2024-10-31 22:00:06,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 994 places, 1035 transitions, 2289 flow [2024-10-31 22:00:06,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 993 places, 1035 transitions, 2286 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:06,682 INFO L231 Difference]: Finished difference. Result has 998 places, 1023 transitions, 2248 flow [2024-10-31 22:00:06,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1005, PETRI_DIFFERENCE_MINUEND_FLOW=2098, PETRI_DIFFERENCE_MINUEND_PLACES=988, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1002, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=992, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2248, PETRI_PLACES=998, PETRI_TRANSITIONS=1023} [2024-10-31 22:00:06,685 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, 5 predicate places. [2024-10-31 22:00:06,685 INFO L471 AbstractCegarLoop]: Abstraction has has 998 places, 1023 transitions, 2248 flow [2024-10-31 22:00:06,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 972.8333333333334) internal successors, (5837), 6 states have internal predecessors, (5837), 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) [2024-10-31 22:00:06,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:06,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:06,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:00:06,690 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 22:00:06,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:06,691 INFO L85 PathProgramCache]: Analyzing trace with hash 154095370, now seen corresponding path program 1 times [2024-10-31 22:00:06,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:06,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349545992] [2024-10-31 22:00:06,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:06,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:07,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:07,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349545992] [2024-10-31 22:00:07,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349545992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:07,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:07,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:07,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015927405] [2024-10-31 22:00:07,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:07,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:07,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:07,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:07,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:07,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 973 out of 1005 [2024-10-31 22:00:07,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 998 places, 1023 transitions, 2248 flow. Second operand has 3 states, 3 states have (on average 976.0) internal successors, (2928), 3 states have internal predecessors, (2928), 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) [2024-10-31 22:00:07,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:07,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 973 of 1005 [2024-10-31 22:00:07,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:08,944 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([2184] L1008-3-->L1013-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][866], [Black: 1010#(= ~top~0 0), 999#true, 1023#true, 1012#true, 14#L1022-4true, 668#L998-2true, Black: 1015#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 631#L1013-2true, Black: 1014#(= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|), Black: 1016#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), Black: 1017#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 3)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), Black: 1003#true]) [2024-10-31 22:00:08,944 INFO L294 olderBase$Statistics]: this new event has 1008 ancestors and is cut-off event [2024-10-31 22:00:08,944 INFO L297 olderBase$Statistics]: existing Event has 900 ancestors and is cut-off event [2024-10-31 22:00:08,945 INFO L297 olderBase$Statistics]: existing Event has 934 ancestors and is cut-off event [2024-10-31 22:00:08,945 INFO L297 olderBase$Statistics]: existing Event has 900 ancestors and is cut-off event [2024-10-31 22:00:09,075 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([2184] L1008-3-->L1013-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][866], [Black: 1010#(= ~top~0 0), 999#true, 1023#true, 1012#true, 14#L1022-4true, Black: 1015#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 631#L1013-2true, Black: 1014#(= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|), Black: 1016#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 402#L993-3true, Black: 1017#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 3)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), Black: 1003#true]) [2024-10-31 22:00:09,076 INFO L294 olderBase$Statistics]: this new event has 1014 ancestors and is cut-off event [2024-10-31 22:00:09,076 INFO L297 olderBase$Statistics]: existing Event has 940 ancestors and is cut-off event [2024-10-31 22:00:09,077 INFO L297 olderBase$Statistics]: existing Event has 906 ancestors and is cut-off event [2024-10-31 22:00:09,077 INFO L297 olderBase$Statistics]: existing Event has 906 ancestors and is cut-off event [2024-10-31 22:00:09,116 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([2184] L1008-3-->L1013-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][866], [Black: 1010#(= ~top~0 0), 999#true, 1023#true, 1012#true, Black: 1015#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 631#L1013-2true, Black: 1014#(= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|), Black: 1016#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 126#L1023-1true, Black: 1017#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 3)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), Black: 1003#true]) [2024-10-31 22:00:09,117 INFO L294 olderBase$Statistics]: this new event has 1018 ancestors and is cut-off event [2024-10-31 22:00:09,117 INFO L297 olderBase$Statistics]: existing Event has 910 ancestors and is cut-off event [2024-10-31 22:00:09,120 INFO L297 olderBase$Statistics]: existing Event has 910 ancestors and is cut-off event [2024-10-31 22:00:09,120 INFO L297 olderBase$Statistics]: existing Event has 944 ancestors and is cut-off event [2024-10-31 22:00:09,151 INFO L124 PetriNetUnfolderBase]: 521/5004 cut-off events. [2024-10-31 22:00:09,151 INFO L125 PetriNetUnfolderBase]: For 383/434 co-relation queries the response was YES. [2024-10-31 22:00:09,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6947 conditions, 5004 events. 521/5004 cut-off events. For 383/434 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 33202 event pairs, 174 based on Foata normal form. 15/4700 useless extension candidates. Maximal degree in co-relation 5823. Up to 786 conditions per place. [2024-10-31 22:00:09,191 INFO L140 encePairwiseOnDemand]: 996/1005 looper letters, 32 selfloop transitions, 13 changer transitions 0/1037 dead transitions. [2024-10-31 22:00:09,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1000 places, 1037 transitions, 2386 flow [2024-10-31 22:00:09,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:09,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:09,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2952 transitions. [2024-10-31 22:00:09,198 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9791044776119403 [2024-10-31 22:00:09,198 INFO L175 Difference]: Start difference. First operand has 998 places, 1023 transitions, 2248 flow. Second operand 3 states and 2952 transitions. [2024-10-31 22:00:09,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1000 places, 1037 transitions, 2386 flow [2024-10-31 22:00:09,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1000 places, 1037 transitions, 2386 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:09,221 INFO L231 Difference]: Finished difference. Result has 1002 places, 1034 transitions, 2364 flow [2024-10-31 22:00:09,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1005, PETRI_DIFFERENCE_MINUEND_FLOW=2248, PETRI_DIFFERENCE_MINUEND_PLACES=998, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1023, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1010, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2364, PETRI_PLACES=1002, PETRI_TRANSITIONS=1034} [2024-10-31 22:00:09,224 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, 9 predicate places. [2024-10-31 22:00:09,224 INFO L471 AbstractCegarLoop]: Abstraction has has 1002 places, 1034 transitions, 2364 flow [2024-10-31 22:00:09,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 976.0) internal successors, (2928), 3 states have internal predecessors, (2928), 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) [2024-10-31 22:00:09,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:09,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:09,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:00:09,229 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 22:00:09,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:09,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2144949941, now seen corresponding path program 1 times [2024-10-31 22:00:09,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:09,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292387124] [2024-10-31 22:00:09,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:09,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:10,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:10,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292387124] [2024-10-31 22:00:10,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292387124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:10,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:10,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:10,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52327365] [2024-10-31 22:00:10,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:10,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:10,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:10,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:10,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:10,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1005 [2024-10-31 22:00:10,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1002 places, 1034 transitions, 2364 flow. Second operand has 3 states, 3 states have (on average 988.0) internal successors, (2964), 3 states have internal predecessors, (2964), 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) [2024-10-31 22:00:10,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:10,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1005 [2024-10-31 22:00:10,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:11,337 INFO L124 PetriNetUnfolderBase]: 33/1498 cut-off events. [2024-10-31 22:00:11,337 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-31 22:00:11,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1767 conditions, 1498 events. 33/1498 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3029 event pairs, 5 based on Foata normal form. 11/1475 useless extension candidates. Maximal degree in co-relation 1091. Up to 65 conditions per place. [2024-10-31 22:00:11,344 INFO L140 encePairwiseOnDemand]: 1001/1005 looper letters, 7 selfloop transitions, 4 changer transitions 0/981 dead transitions. [2024-10-31 22:00:11,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 995 places, 981 transitions, 2091 flow [2024-10-31 22:00:11,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:11,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:11,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2971 transitions. [2024-10-31 22:00:11,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9854063018242123 [2024-10-31 22:00:11,352 INFO L175 Difference]: Start difference. First operand has 1002 places, 1034 transitions, 2364 flow. Second operand 3 states and 2971 transitions. [2024-10-31 22:00:11,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 995 places, 981 transitions, 2091 flow [2024-10-31 22:00:11,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 981 places, 981 transitions, 2017 flow, removed 23 selfloop flow, removed 14 redundant places. [2024-10-31 22:00:11,372 INFO L231 Difference]: Finished difference. Result has 981 places, 979 transitions, 1996 flow [2024-10-31 22:00:11,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1005, PETRI_DIFFERENCE_MINUEND_FLOW=1988, PETRI_DIFFERENCE_MINUEND_PLACES=979, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=979, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=975, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1996, PETRI_PLACES=981, PETRI_TRANSITIONS=979} [2024-10-31 22:00:11,374 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -12 predicate places. [2024-10-31 22:00:11,374 INFO L471 AbstractCegarLoop]: Abstraction has has 981 places, 979 transitions, 1996 flow [2024-10-31 22:00:11,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 988.0) internal successors, (2964), 3 states have internal predecessors, (2964), 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) [2024-10-31 22:00:11,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:11,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:11,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:00:11,379 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 22:00:11,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:11,379 INFO L85 PathProgramCache]: Analyzing trace with hash 42837153, now seen corresponding path program 1 times [2024-10-31 22:00:11,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:11,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25985829] [2024-10-31 22:00:11,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:11,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:11,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25985829] [2024-10-31 22:00:11,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25985829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:11,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:11,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:11,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228538565] [2024-10-31 22:00:11,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:11,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:11,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:11,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:11,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:11,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 973 out of 1005 [2024-10-31 22:00:11,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 981 places, 979 transitions, 1996 flow. Second operand has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 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) [2024-10-31 22:00:11,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:11,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 973 of 1005 [2024-10-31 22:00:11,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:12,556 INFO L124 PetriNetUnfolderBase]: 52/1512 cut-off events. [2024-10-31 22:00:12,557 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-31 22:00:12,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 1512 events. 52/1512 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3354 event pairs, 28 based on Foata normal form. 0/1479 useless extension candidates. Maximal degree in co-relation 1050. Up to 119 conditions per place. [2024-10-31 22:00:12,563 INFO L140 encePairwiseOnDemand]: 1002/1005 looper letters, 22 selfloop transitions, 2 changer transitions 0/979 dead transitions. [2024-10-31 22:00:12,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 982 places, 979 transitions, 2045 flow [2024-10-31 22:00:12,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:12,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:12,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2942 transitions. [2024-10-31 22:00:12,573 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.975787728026534 [2024-10-31 22:00:12,573 INFO L175 Difference]: Start difference. First operand has 981 places, 979 transitions, 1996 flow. Second operand 3 states and 2942 transitions. [2024-10-31 22:00:12,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 982 places, 979 transitions, 2045 flow [2024-10-31 22:00:12,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 981 places, 979 transitions, 2041 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:12,590 INFO L231 Difference]: Finished difference. Result has 981 places, 978 transitions, 1994 flow [2024-10-31 22:00:12,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1005, PETRI_DIFFERENCE_MINUEND_FLOW=1990, PETRI_DIFFERENCE_MINUEND_PLACES=979, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=978, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=976, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1994, PETRI_PLACES=981, PETRI_TRANSITIONS=978} [2024-10-31 22:00:12,594 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -12 predicate places. [2024-10-31 22:00:12,595 INFO L471 AbstractCegarLoop]: Abstraction has has 981 places, 978 transitions, 1994 flow [2024-10-31 22:00:12,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 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) [2024-10-31 22:00:12,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:12,599 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:12,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:00:12,600 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 22:00:12,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:12,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1497729346, now seen corresponding path program 1 times [2024-10-31 22:00:12,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:12,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113570355] [2024-10-31 22:00:12,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:12,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat