./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/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_ec92ca62-e9da-444a-8839-5ace91357ca3/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/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_ec92ca62-e9da-444a-8839-5ace91357ca3/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 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:22,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:22,699 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:12:22,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:22,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:22,741 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:22,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:22,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:22,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:12:22,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:12:22,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:22,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:22,749 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:22,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:22,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:12:22,753 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:12:22,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:22,753 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:12:22,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:22,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:12:22,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:12:22,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:12:22,755 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:12:22,755 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:22,756 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:12:22,756 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:12:22,756 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:12:22,756 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:22,757 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:22,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:22,758 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:12:22,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:22,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:22,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:12:22,759 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:12:22,760 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:12:22,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:12:22,760 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:12:22,760 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:12:22,760 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:12:22,761 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:12:22,761 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_ec92ca62-e9da-444a-8839-5ace91357ca3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f [2024-10-31 22:12:23,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:23,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:23,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:23,067 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:23,068 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:23,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c Unable to find full path for "g++" [2024-10-31 22:12:25,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:25,639 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:25,641 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2024-10-31 22:12:25,654 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/bin/uautomizer-verify-4GaUIPS5ZU/data/921bb4f8d/c55db8cfe3b44795936a817fc32e7a6e/FLAGa58e4d731 [2024-10-31 22:12:25,678 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/bin/uautomizer-verify-4GaUIPS5ZU/data/921bb4f8d/c55db8cfe3b44795936a817fc32e7a6e [2024-10-31 22:12:25,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:25,685 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:25,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:25,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:25,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:25,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:25" (1/1) ... [2024-10-31 22:12:25,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dfe778c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:25, skipping insertion in model container [2024-10-31 22:12:25,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:25" (1/1) ... [2024-10-31 22:12:25,738 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:26,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:26,125 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:26,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:26,238 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:26,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26 WrapperNode [2024-10-31 22:12:26,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:26,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:26,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:26,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:26,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (1/1) ... [2024-10-31 22:12:26,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (1/1) ... [2024-10-31 22:12:26,313 INFO L138 Inliner]: procedures = 24, calls = 69, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 488 [2024-10-31 22:12:26,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:26,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:26,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:26,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:26,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (1/1) ... [2024-10-31 22:12:26,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (1/1) ... [2024-10-31 22:12:26,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (1/1) ... [2024-10-31 22:12:26,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (1/1) ... [2024-10-31 22:12:26,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (1/1) ... [2024-10-31 22:12:26,361 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (1/1) ... [2024-10-31 22:12:26,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (1/1) ... [2024-10-31 22:12:26,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (1/1) ... [2024-10-31 22:12:26,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:26,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:26,378 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:26,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:26,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (1/1) ... [2024-10-31 22:12:26,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:26,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:26,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:26,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec92ca62-e9da-444a-8839-5ace91357ca3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:12:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:12:26,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:12:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:12:26,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:12:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:12:26,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:12:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-31 22:12:26,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-31 22:12:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:12:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-31 22:12:26,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-31 22:12:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-10-31 22:12:26,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-10-31 22:12:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:12:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:12:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:26,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:26,462 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 22:12:26,600 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:26,602 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:27,317 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:12:27,317 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:27,615 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:27,615 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:12:27,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:27 BoogieIcfgContainer [2024-10-31 22:12:27,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:27,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:27,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:27,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:27,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:25" (1/3) ... [2024-10-31 22:12:27,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dac75e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:27, skipping insertion in model container [2024-10-31 22:12:27,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:26" (2/3) ... [2024-10-31 22:12:27,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dac75e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:27, skipping insertion in model container [2024-10-31 22:12:27,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:27" (3/3) ... [2024-10-31 22:12:27,626 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2024-10-31 22:12:27,647 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:27,647 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2024-10-31 22:12:27,647 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:12:27,793 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-10-31 22:12:27,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 404 places, 399 transitions, 864 flow [2024-10-31 22:12:28,076 INFO L124 PetriNetUnfolderBase]: 14/385 cut-off events. [2024-10-31 22:12:28,080 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:12:28,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 385 events. 14/385 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 620 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 337. Up to 3 conditions per place. [2024-10-31 22:12:28,095 INFO L82 GeneralOperation]: Start removeDead. Operand has 404 places, 399 transitions, 864 flow [2024-10-31 22:12:28,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 372 places, 365 transitions, 778 flow [2024-10-31 22:12:28,121 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:28,130 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;@764fd4db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:28,130 INFO L334 AbstractCegarLoop]: Starting to check reachability of 134 error locations. [2024-10-31 22:12:28,140 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:28,141 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-31 22:12:28,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:28,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:28,142 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] [2024-10-31 22:12:28,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2024-10-31 22:12:28,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:28,148 INFO L85 PathProgramCache]: Analyzing trace with hash 271217472, now seen corresponding path program 1 times [2024-10-31 22:12:28,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:28,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595054879] [2024-10-31 22:12:28,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:28,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:28,460 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 22:12:28,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:28,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595054879] [2024-10-31 22:12:28,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595054879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:28,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:28,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:28,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912673763] [2024-10-31 22:12:28,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:28,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:28,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:28,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:28,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:28,568 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 403 [2024-10-31 22:12:28,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 365 transitions, 778 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 22:12:28,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:28,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 403 [2024-10-31 22:12:28,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:35,805 INFO L124 PetriNetUnfolderBase]: 11752/18627 cut-off events. [2024-10-31 22:12:35,806 INFO L125 PetriNetUnfolderBase]: For 4521/4521 co-relation queries the response was YES. [2024-10-31 22:12:35,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39257 conditions, 18627 events. 11752/18627 cut-off events. For 4521/4521 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 130536 event pairs, 10673 based on Foata normal form. 84/17345 useless extension candidates. Maximal degree in co-relation 38574. Up to 16165 conditions per place. [2024-10-31 22:12:36,021 INFO L140 encePairwiseOnDemand]: 353/403 looper letters, 46 selfloop transitions, 2 changer transitions 1/317 dead transitions. [2024-10-31 22:12:36,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 317 transitions, 778 flow [2024-10-31 22:12:36,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:36,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:36,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 984 transitions. [2024-10-31 22:12:36,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8138957816377171 [2024-10-31 22:12:36,048 INFO L175 Difference]: Start difference. First operand has 372 places, 365 transitions, 778 flow. Second operand 3 states and 984 transitions. [2024-10-31 22:12:36,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 317 transitions, 778 flow [2024-10-31 22:12:36,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 317 transitions, 746 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-31 22:12:36,085 INFO L231 Difference]: Finished difference. Result has 317 places, 316 transitions, 652 flow [2024-10-31 22:12:36,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=652, PETRI_PLACES=317, PETRI_TRANSITIONS=316} [2024-10-31 22:12:36,091 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, -55 predicate places. [2024-10-31 22:12:36,094 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 316 transitions, 652 flow [2024-10-31 22:12:36,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 22:12:36,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:36,095 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] [2024-10-31 22:12:36,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:12:36,096 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2024-10-31 22:12:36,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:36,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1494094181, now seen corresponding path program 1 times [2024-10-31 22:12:36,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:36,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675196479] [2024-10-31 22:12:36,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:36,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:36,216 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 22:12:36,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:36,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675196479] [2024-10-31 22:12:36,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675196479] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:36,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:36,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:36,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091541479] [2024-10-31 22:12:36,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:36,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:36,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:36,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:36,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:36,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 403 [2024-10-31 22:12:36,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 316 transitions, 652 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 22:12:36,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:36,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 403 [2024-10-31 22:12:36,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:40,741 INFO L124 PetriNetUnfolderBase]: 11752/18655 cut-off events. [2024-10-31 22:12:40,741 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES. [2024-10-31 22:12:40,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35957 conditions, 18655 events. 11752/18655 cut-off events. For 1130/1130 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 130355 event pairs, 10673 based on Foata normal form. 0/17283 useless extension candidates. Maximal degree in co-relation 35920. Up to 16165 conditions per place. [2024-10-31 22:12:40,860 INFO L140 encePairwiseOnDemand]: 400/403 looper letters, 46 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2024-10-31 22:12:40,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 315 transitions, 746 flow [2024-10-31 22:12:40,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:40,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2024-10-31 22:12:40,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7750206782464847 [2024-10-31 22:12:40,864 INFO L175 Difference]: Start difference. First operand has 317 places, 316 transitions, 652 flow. Second operand 3 states and 937 transitions. [2024-10-31 22:12:40,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 315 transitions, 746 flow [2024-10-31 22:12:40,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 315 transitions, 742 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:40,874 INFO L231 Difference]: Finished difference. Result has 315 places, 315 transitions, 650 flow [2024-10-31 22:12:40,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=650, PETRI_PLACES=315, PETRI_TRANSITIONS=315} [2024-10-31 22:12:40,875 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, -57 predicate places. [2024-10-31 22:12:40,876 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 315 transitions, 650 flow [2024-10-31 22:12:40,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 22:12:40,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:40,877 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] [2024-10-31 22:12:40,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:12:40,877 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2024-10-31 22:12:40,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:40,878 INFO L85 PathProgramCache]: Analyzing trace with hash 717135015, now seen corresponding path program 1 times [2024-10-31 22:12:40,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:40,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033180751] [2024-10-31 22:12:40,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:40,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,982 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 22:12:40,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:40,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033180751] [2024-10-31 22:12:40,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033180751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:40,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:40,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:40,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278541872] [2024-10-31 22:12:40,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:40,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:40,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:40,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:40,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:41,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 403 [2024-10-31 22:12:41,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 315 transitions, 650 flow. Second operand has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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 22:12:41,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:41,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 403 [2024-10-31 22:12:41,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:44,428 INFO L124 PetriNetUnfolderBase]: 11752/18654 cut-off events. [2024-10-31 22:12:44,428 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES. [2024-10-31 22:12:44,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35954 conditions, 18654 events. 11752/18654 cut-off events. For 1130/1130 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 130997 event pairs, 10673 based on Foata normal form. 0/17282 useless extension candidates. Maximal degree in co-relation 35909. Up to 16163 conditions per place. [2024-10-31 22:12:44,761 INFO L140 encePairwiseOnDemand]: 400/403 looper letters, 44 selfloop transitions, 2 changer transitions 0/314 dead transitions. [2024-10-31 22:12:44,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 314 transitions, 740 flow [2024-10-31 22:12:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:44,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:44,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 941 transitions. [2024-10-31 22:12:44,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7783291976840364 [2024-10-31 22:12:44,764 INFO L175 Difference]: Start difference. First operand has 315 places, 315 transitions, 650 flow. Second operand 3 states and 941 transitions. [2024-10-31 22:12:44,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 314 transitions, 740 flow [2024-10-31 22:12:44,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 314 transitions, 736 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:44,771 INFO L231 Difference]: Finished difference. Result has 314 places, 314 transitions, 648 flow [2024-10-31 22:12:44,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=648, PETRI_PLACES=314, PETRI_TRANSITIONS=314} [2024-10-31 22:12:44,772 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, -58 predicate places. [2024-10-31 22:12:44,773 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 314 transitions, 648 flow [2024-10-31 22:12:44,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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 22:12:44,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:44,774 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] [2024-10-31 22:12:44,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:12:44,774 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2024-10-31 22:12:44,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:44,775 INFO L85 PathProgramCache]: Analyzing trace with hash -495515715, now seen corresponding path program 1 times [2024-10-31 22:12:44,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:44,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955467203] [2024-10-31 22:12:44,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:44,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,825 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 22:12:44,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:44,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955467203] [2024-10-31 22:12:44,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955467203] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:44,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:44,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:44,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294651013] [2024-10-31 22:12:44,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:44,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:44,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:44,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:44,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:44,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 403 [2024-10-31 22:12:44,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 314 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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 22:12:44,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:44,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 403 [2024-10-31 22:12:44,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:48,173 INFO L124 PetriNetUnfolderBase]: 11752/18653 cut-off events. [2024-10-31 22:12:48,174 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES. [2024-10-31 22:12:48,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35953 conditions, 18653 events. 11752/18653 cut-off events. For 1130/1130 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 130889 event pairs, 10673 based on Foata normal form. 0/17282 useless extension candidates. Maximal degree in co-relation 35900. Up to 16163 conditions per place. [2024-10-31 22:12:48,318 INFO L140 encePairwiseOnDemand]: 400/403 looper letters, 44 selfloop transitions, 2 changer transitions 0/313 dead transitions. [2024-10-31 22:12:48,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 313 transitions, 738 flow [2024-10-31 22:12:48,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:48,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:48,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 941 transitions. [2024-10-31 22:12:48,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7783291976840364 [2024-10-31 22:12:48,321 INFO L175 Difference]: Start difference. First operand has 314 places, 314 transitions, 648 flow. Second operand 3 states and 941 transitions. [2024-10-31 22:12:48,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 313 transitions, 738 flow [2024-10-31 22:12:48,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 313 transitions, 734 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:48,327 INFO L231 Difference]: Finished difference. Result has 313 places, 313 transitions, 646 flow [2024-10-31 22:12:48,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=313, PETRI_TRANSITIONS=313} [2024-10-31 22:12:48,329 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, -59 predicate places. [2024-10-31 22:12:48,329 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 313 transitions, 646 flow [2024-10-31 22:12:48,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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 22:12:48,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:48,331 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] [2024-10-31 22:12:48,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:12:48,331 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2024-10-31 22:12:48,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:48,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1842778573, now seen corresponding path program 1 times [2024-10-31 22:12:48,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:48,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153479903] [2024-10-31 22:12:48,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:48,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:48,385 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 22:12:48,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:48,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153479903] [2024-10-31 22:12:48,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153479903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:48,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:48,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:48,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449494319] [2024-10-31 22:12:48,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:48,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:48,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:48,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:48,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:48,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 403 [2024-10-31 22:12:48,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 313 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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 22:12:48,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:48,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 403 [2024-10-31 22:12:48,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:52,139 INFO L124 PetriNetUnfolderBase]: 11629/18396 cut-off events. [2024-10-31 22:12:52,139 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2024-10-31 22:12:52,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35500 conditions, 18396 events. 11629/18396 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 128835 event pairs, 10560 based on Foata normal form. 0/17047 useless extension candidates. Maximal degree in co-relation 35439. Up to 15976 conditions per place. [2024-10-31 22:12:52,267 INFO L140 encePairwiseOnDemand]: 400/403 looper letters, 43 selfloop transitions, 2 changer transitions 0/312 dead transitions. [2024-10-31 22:12:52,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 312 transitions, 734 flow [2024-10-31 22:12:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:52,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:52,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 943 transitions. [2024-10-31 22:12:52,271 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7799834574028123 [2024-10-31 22:12:52,271 INFO L175 Difference]: Start difference. First operand has 313 places, 313 transitions, 646 flow. Second operand 3 states and 943 transitions. [2024-10-31 22:12:52,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 312 transitions, 734 flow [2024-10-31 22:12:52,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 312 transitions, 730 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:52,279 INFO L231 Difference]: Finished difference. Result has 312 places, 312 transitions, 644 flow [2024-10-31 22:12:52,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=312, PETRI_TRANSITIONS=312} [2024-10-31 22:12:52,281 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, -60 predicate places. [2024-10-31 22:12:52,281 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 312 transitions, 644 flow [2024-10-31 22:12:52,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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 22:12:52,282 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:52,282 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:52,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:12:52,283 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2024-10-31 22:12:52,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:52,284 INFO L85 PathProgramCache]: Analyzing trace with hash 403226511, now seen corresponding path program 1 times [2024-10-31 22:12:52,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:52,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607626994] [2024-10-31 22:12:52,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:52,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:52,379 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 22:12:52,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:52,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607626994] [2024-10-31 22:12:52,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607626994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:52,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:52,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:52,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220740528] [2024-10-31 22:12:52,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:52,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:52,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:52,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:52,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:52,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 403 [2024-10-31 22:12:52,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 312 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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 22:12:52,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:52,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 403 [2024-10-31 22:12:52,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand