./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/mult-comm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/mult-comm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx --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 de93f11842753a9f5cde98724d1851736862f745073786263bfd177abe6c2376 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:21:20,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:21:20,775 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:21:20,781 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:21:20,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:21:20,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:21:20,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:21:20,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:21:20,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:21:20,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:21:20,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:21:20,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:21:20,813 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:21:20,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:21:20,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:21:20,815 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:21:20,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:21:20,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:21:20,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:21:20,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:21:20,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:21:20,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:21:20,820 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:21:20,821 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:21:20,821 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:21:20,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:21:20,822 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:21:20,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:21:20,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:21:20,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:21:20,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:20,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:21:20,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:21:20,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:21:20,826 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:21:20,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:21:20,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:21:20,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:21:20,827 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:21:20,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:21:20,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:21:20,828 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_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de93f11842753a9f5cde98724d1851736862f745073786263bfd177abe6c2376 [2023-11-21 22:21:21,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:21:21,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:21:21,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:21:21,138 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:21:21,138 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:21:21,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/mult-comm.wvr.c [2023-11-21 22:21:24,267 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:21:24,566 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:21:24,567 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/sv-benchmarks/c/weaver/mult-comm.wvr.c [2023-11-21 22:21:24,580 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/data/ee87d637a/11b745fd5b2949a8b1133ef58616f768/FLAGaaf907b7f [2023-11-21 22:21:24,595 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/data/ee87d637a/11b745fd5b2949a8b1133ef58616f768 [2023-11-21 22:21:24,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:21:24,599 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:21:24,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:24,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:21:24,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:21:24,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66391754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24, skipping insertion in model container [2023-11-21 22:21:24,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,633 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:21:24,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:24,820 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:21:24,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:24,868 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:21:24,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24 WrapperNode [2023-11-21 22:21:24,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:24,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:24,874 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:21:24,874 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:21:24,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,910 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2023-11-21 22:21:24,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:24,911 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:21:24,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:21:24,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:21:24,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:21:24,962 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:21:24,962 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:21:24,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:21:24,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (1/1) ... [2023-11-21 22:21:24,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:24,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:25,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:25,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:21:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:21:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:21:25,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:21:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:21:25,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:21:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:21:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:21:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:21:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:21:25,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:21:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:21:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:21:25,046 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:21:25,140 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:21:25,143 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:21:25,454 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:21:25,468 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:21:25,479 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:21:25,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:25 BoogieIcfgContainer [2023-11-21 22:21:25,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:21:25,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:21:25,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:21:25,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:21:25,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:21:24" (1/3) ... [2023-11-21 22:21:25,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fdad18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:25, skipping insertion in model container [2023-11-21 22:21:25,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:24" (2/3) ... [2023-11-21 22:21:25,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fdad18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:25, skipping insertion in model container [2023-11-21 22:21:25,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:25" (3/3) ... [2023-11-21 22:21:25,489 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-comm.wvr.c [2023-11-21 22:21:25,497 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:21:25,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:21:25,506 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-21 22:21:25,506 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:21:25,615 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:21:25,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 140 transitions, 294 flow [2023-11-21 22:21:25,772 INFO L124 PetriNetUnfolderBase]: 5/138 cut-off events. [2023-11-21 22:21:25,772 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:21:25,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 138 events. 5/138 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 170 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-11-21 22:21:25,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 140 transitions, 294 flow [2023-11-21 22:21:25,790 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 117 transitions, 246 flow [2023-11-21 22:21:25,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:21:25,812 INFO L357 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, mHoare=true, 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;@68fc0cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:21:25,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-21 22:21:25,818 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:21:25,819 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-21 22:21:25,819 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:21:25,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:25,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:25,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:21:25,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:25,827 INFO L85 PathProgramCache]: Analyzing trace with hash 102429039, now seen corresponding path program 1 times [2023-11-21 22:21:25,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:25,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550585748] [2023-11-21 22:21:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:25,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:26,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:26,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:26,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550585748] [2023-11-21 22:21:26,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550585748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:26,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:26,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:26,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128709358] [2023-11-21 22:21:26,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:26,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:26,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:26,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:26,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 140 [2023-11-21 22:21:26,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 117 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2023-11-21 22:21:26,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:26,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 140 [2023-11-21 22:21:26,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:26,197 INFO L124 PetriNetUnfolderBase]: 7/176 cut-off events. [2023-11-21 22:21:26,197 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-21 22:21:26,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 176 events. 7/176 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 452 event pairs, 3 based on Foata normal form. 3/152 useless extension candidates. Maximal degree in co-relation 113. Up to 17 conditions per place. [2023-11-21 22:21:26,202 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 9 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2023-11-21 22:21:26,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 114 transitions, 262 flow [2023-11-21 22:21:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:26,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2023-11-21 22:21:26,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9119047619047619 [2023-11-21 22:21:26,220 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2023-11-21 22:21:26,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2023-11-21 22:21:26,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:26,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2023-11-21 22:21:26,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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) [2023-11-21 22:21:26,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:26,246 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:26,248 INFO L175 Difference]: Start difference. First operand has 120 places, 117 transitions, 246 flow. Second operand 3 states and 383 transitions. [2023-11-21 22:21:26,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 114 transitions, 262 flow [2023-11-21 22:21:26,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 114 transitions, 254 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:21:26,262 INFO L231 Difference]: Finished difference. Result has 117 places, 114 transitions, 236 flow [2023-11-21 22:21:26,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=117, PETRI_TRANSITIONS=114} [2023-11-21 22:21:26,271 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -3 predicate places. [2023-11-21 22:21:26,271 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 114 transitions, 236 flow [2023-11-21 22:21:26,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2023-11-21 22:21:26,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:26,273 INFO L208 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] [2023-11-21 22:21:26,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:21:26,274 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:21:26,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:26,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1298864307, now seen corresponding path program 1 times [2023-11-21 22:21:26,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:26,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096038524] [2023-11-21 22:21:26,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:26,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:26,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:26,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096038524] [2023-11-21 22:21:26,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096038524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:26,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:26,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:26,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019912789] [2023-11-21 22:21:26,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:26,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:26,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:26,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:26,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:26,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 140 [2023-11-21 22:21:26,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 114 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2023-11-21 22:21:26,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:26,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 140 [2023-11-21 22:21:26,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:26,536 INFO L124 PetriNetUnfolderBase]: 7/173 cut-off events. [2023-11-21 22:21:26,537 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2023-11-21 22:21:26,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 173 events. 7/173 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 456 event pairs, 3 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 173. Up to 18 conditions per place. [2023-11-21 22:21:26,544 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 9 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2023-11-21 22:21:26,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 113 transitions, 256 flow [2023-11-21 22:21:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:26,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:26,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2023-11-21 22:21:26,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9071428571428571 [2023-11-21 22:21:26,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 381 transitions. [2023-11-21 22:21:26,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 381 transitions. [2023-11-21 22:21:26,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:26,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 381 transitions. [2023-11-21 22:21:26,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2023-11-21 22:21:26,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:26,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:26,563 INFO L175 Difference]: Start difference. First operand has 117 places, 114 transitions, 236 flow. Second operand 3 states and 381 transitions. [2023-11-21 22:21:26,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 113 transitions, 256 flow [2023-11-21 22:21:26,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 113 transitions, 252 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:26,571 INFO L231 Difference]: Finished difference. Result has 116 places, 113 transitions, 234 flow [2023-11-21 22:21:26,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=116, PETRI_TRANSITIONS=113} [2023-11-21 22:21:26,572 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -4 predicate places. [2023-11-21 22:21:26,573 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 113 transitions, 234 flow [2023-11-21 22:21:26,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2023-11-21 22:21:26,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:26,574 INFO L208 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] [2023-11-21 22:21:26,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:21:26,576 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:21:26,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:26,582 INFO L85 PathProgramCache]: Analyzing trace with hash 768895507, now seen corresponding path program 1 times [2023-11-21 22:21:26,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:26,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471900235] [2023-11-21 22:21:26,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:26,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:26,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:26,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:26,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471900235] [2023-11-21 22:21:26,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471900235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:26,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:26,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:26,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503840628] [2023-11-21 22:21:26,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:26,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:26,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:26,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:26,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:26,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 140 [2023-11-21 22:21:26,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 113 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2023-11-21 22:21:26,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:26,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 140 [2023-11-21 22:21:26,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:26,865 INFO L124 PetriNetUnfolderBase]: 17/255 cut-off events. [2023-11-21 22:21:26,866 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2023-11-21 22:21:26,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 255 events. 17/255 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 912 event pairs, 4 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 264. Up to 31 conditions per place. [2023-11-21 22:21:26,870 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 10 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2023-11-21 22:21:26,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 114 transitions, 261 flow [2023-11-21 22:21:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:26,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:26,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2023-11-21 22:21:26,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9261904761904762 [2023-11-21 22:21:26,873 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2023-11-21 22:21:26,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2023-11-21 22:21:26,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:26,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2023-11-21 22:21:26,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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) [2023-11-21 22:21:26,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:26,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:26,881 INFO L175 Difference]: Start difference. First operand has 116 places, 113 transitions, 234 flow. Second operand 3 states and 389 transitions. [2023-11-21 22:21:26,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 114 transitions, 261 flow [2023-11-21 22:21:26,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 114 transitions, 257 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:26,887 INFO L231 Difference]: Finished difference. Result has 115 places, 113 transitions, 240 flow [2023-11-21 22:21:26,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=115, PETRI_TRANSITIONS=113} [2023-11-21 22:21:26,889 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -5 predicate places. [2023-11-21 22:21:26,889 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 113 transitions, 240 flow [2023-11-21 22:21:26,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2023-11-21 22:21:26,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:26,890 INFO L208 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] [2023-11-21 22:21:26,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:21:26,890 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:21:26,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:26,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1105797155, now seen corresponding path program 1 times [2023-11-21 22:21:26,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:26,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601645774] [2023-11-21 22:21:26,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:26,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:27,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:27,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601645774] [2023-11-21 22:21:27,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601645774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:27,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:27,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:27,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448363019] [2023-11-21 22:21:27,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:27,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:27,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:27,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:27,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:27,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 140 [2023-11-21 22:21:27,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 113 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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) [2023-11-21 22:21:27,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:27,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 140 [2023-11-21 22:21:27,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:27,082 INFO L124 PetriNetUnfolderBase]: 10/192 cut-off events. [2023-11-21 22:21:27,083 INFO L125 PetriNetUnfolderBase]: For 3/8 co-relation queries the response was YES. [2023-11-21 22:21:27,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 192 events. 10/192 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 581 event pairs, 1 based on Foata normal form. 2/172 useless extension candidates. Maximal degree in co-relation 157. Up to 9 conditions per place. [2023-11-21 22:21:27,085 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 7 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2023-11-21 22:21:27,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 112 transitions, 259 flow [2023-11-21 22:21:27,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:27,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:27,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2023-11-21 22:21:27,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9214285714285714 [2023-11-21 22:21:27,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 387 transitions. [2023-11-21 22:21:27,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 387 transitions. [2023-11-21 22:21:27,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:27,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 387 transitions. [2023-11-21 22:21:27,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 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) [2023-11-21 22:21:27,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:27,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:27,094 INFO L175 Difference]: Start difference. First operand has 115 places, 113 transitions, 240 flow. Second operand 3 states and 387 transitions. [2023-11-21 22:21:27,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 112 transitions, 259 flow [2023-11-21 22:21:27,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 112 transitions, 259 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:21:27,098 INFO L231 Difference]: Finished difference. Result has 115 places, 111 transitions, 242 flow [2023-11-21 22:21:27,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=115, PETRI_TRANSITIONS=111} [2023-11-21 22:21:27,101 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -5 predicate places. [2023-11-21 22:21:27,101 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 111 transitions, 242 flow [2023-11-21 22:21:27,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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) [2023-11-21 22:21:27,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:27,103 INFO L208 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] [2023-11-21 22:21:27,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:21:27,103 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:21:27,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:27,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1814154885, now seen corresponding path program 1 times [2023-11-21 22:21:27,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:27,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638928679] [2023-11-21 22:21:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:27,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:27,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:27,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:27,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638928679] [2023-11-21 22:21:27,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638928679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:27,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:27,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:27,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076619272] [2023-11-21 22:21:27,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:27,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:27,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:27,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:27,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:27,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 140 [2023-11-21 22:21:27,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 111 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2023-11-21 22:21:27,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:27,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 140 [2023-11-21 22:21:27,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:27,312 INFO L124 PetriNetUnfolderBase]: 27/266 cut-off events. [2023-11-21 22:21:27,312 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2023-11-21 22:21:27,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 266 events. 27/266 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1065 event pairs, 2 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 266. Up to 40 conditions per place. [2023-11-21 22:21:27,315 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 11 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2023-11-21 22:21:27,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 113 transitions, 274 flow [2023-11-21 22:21:27,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:27,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-11-21 22:21:27,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2023-11-21 22:21:27,324 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-11-21 22:21:27,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-11-21 22:21:27,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:27,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-11-21 22:21:27,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:27,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:27,328 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:27,328 INFO L175 Difference]: Start difference. First operand has 115 places, 111 transitions, 242 flow. Second operand 3 states and 390 transitions. [2023-11-21 22:21:27,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 113 transitions, 274 flow [2023-11-21 22:21:27,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 113 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:27,332 INFO L231 Difference]: Finished difference. Result has 114 places, 111 transitions, 246 flow [2023-11-21 22:21:27,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=114, PETRI_TRANSITIONS=111} [2023-11-21 22:21:27,336 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -6 predicate places. [2023-11-21 22:21:27,337 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 111 transitions, 246 flow [2023-11-21 22:21:27,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2023-11-21 22:21:27,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:27,337 INFO L208 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] [2023-11-21 22:21:27,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:21:27,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:21:27,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:27,343 INFO L85 PathProgramCache]: Analyzing trace with hash -763330808, now seen corresponding path program 1 times [2023-11-21 22:21:27,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:27,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040338739] [2023-11-21 22:21:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:27,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:27,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:27,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:27,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040338739] [2023-11-21 22:21:27,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040338739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:27,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:27,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:27,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796236892] [2023-11-21 22:21:27,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:27,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:27,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:27,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:27,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:27,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 140 [2023-11-21 22:21:27,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 111 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2023-11-21 22:21:27,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:27,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 140 [2023-11-21 22:21:27,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:27,502 INFO L124 PetriNetUnfolderBase]: 21/280 cut-off events. [2023-11-21 22:21:27,502 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2023-11-21 22:21:27,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 280 events. 21/280 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1211 event pairs, 4 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 280. Up to 22 conditions per place. [2023-11-21 22:21:27,524 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 9 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2023-11-21 22:21:27,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 111 transitions, 269 flow [2023-11-21 22:21:27,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:27,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:27,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2023-11-21 22:21:27,527 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9214285714285714 [2023-11-21 22:21:27,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 387 transitions. [2023-11-21 22:21:27,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 387 transitions. [2023-11-21 22:21:27,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:27,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 387 transitions. [2023-11-21 22:21:27,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 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) [2023-11-21 22:21:27,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:27,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:27,533 INFO L175 Difference]: Start difference. First operand has 114 places, 111 transitions, 246 flow. Second operand 3 states and 387 transitions. [2023-11-21 22:21:27,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 111 transitions, 269 flow [2023-11-21 22:21:27,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 111 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:21:27,538 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 248 flow [2023-11-21 22:21:27,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2023-11-21 22:21:27,543 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -5 predicate places. [2023-11-21 22:21:27,544 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 248 flow [2023-11-21 22:21:27,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2023-11-21 22:21:27,545 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:27,546 INFO L208 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] [2023-11-21 22:21:27,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:21:27,546 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:21:27,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:27,547 INFO L85 PathProgramCache]: Analyzing trace with hash -607551438, now seen corresponding path program 1 times [2023-11-21 22:21:27,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:27,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354535557] [2023-11-21 22:21:27,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:27,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:27,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:27,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:27,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354535557] [2023-11-21 22:21:27,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354535557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:27,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:27,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:27,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365134111] [2023-11-21 22:21:27,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:27,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:27,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:27,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:27,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:27,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 140 [2023-11-21 22:21:27,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2023-11-21 22:21:27,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:27,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 140 [2023-11-21 22:21:27,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:27,711 INFO L124 PetriNetUnfolderBase]: 21/212 cut-off events. [2023-11-21 22:21:27,711 INFO L125 PetriNetUnfolderBase]: For 12/15 co-relation queries the response was YES. [2023-11-21 22:21:27,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 212 events. 21/212 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 677 event pairs, 1 based on Foata normal form. 2/196 useless extension candidates. Maximal degree in co-relation 229. Up to 19 conditions per place. [2023-11-21 22:21:27,714 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 5 selfloop transitions, 2 changer transitions 5/109 dead transitions. [2023-11-21 22:21:27,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 109 transitions, 265 flow [2023-11-21 22:21:27,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:27,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:27,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2023-11-21 22:21:27,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.919047619047619 [2023-11-21 22:21:27,718 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2023-11-21 22:21:27,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2023-11-21 22:21:27,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:27,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2023-11-21 22:21:27,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2023-11-21 22:21:27,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:27,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:27,722 INFO L175 Difference]: Start difference. First operand has 115 places, 110 transitions, 248 flow. Second operand 3 states and 386 transitions. [2023-11-21 22:21:27,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 109 transitions, 265 flow [2023-11-21 22:21:27,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 109 transitions, 261 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:27,726 INFO L231 Difference]: Finished difference. Result has 113 places, 103 transitions, 233 flow [2023-11-21 22:21:27,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=113, PETRI_TRANSITIONS=103} [2023-11-21 22:21:27,729 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -7 predicate places. [2023-11-21 22:21:27,729 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 103 transitions, 233 flow [2023-11-21 22:21:27,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2023-11-21 22:21:27,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:27,731 INFO L208 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] [2023-11-21 22:21:27,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:21:27,732 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:21:27,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:27,733 INFO L85 PathProgramCache]: Analyzing trace with hash 497793300, now seen corresponding path program 1 times [2023-11-21 22:21:27,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:27,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960674375] [2023-11-21 22:21:27,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:27,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:28,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:28,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:28,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960674375] [2023-11-21 22:21:28,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960674375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:28,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:28,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:21:28,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090474064] [2023-11-21 22:21:28,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:28,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:21:28,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:28,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:21:28,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:21:28,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 140 [2023-11-21 22:21:28,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 103 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 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) [2023-11-21 22:21:28,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:28,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 140 [2023-11-21 22:21:28,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:28,555 INFO L124 PetriNetUnfolderBase]: 10/175 cut-off events. [2023-11-21 22:21:28,555 INFO L125 PetriNetUnfolderBase]: For 1/7 co-relation queries the response was YES. [2023-11-21 22:21:28,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 175 events. 10/175 cut-off events. For 1/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 474 event pairs, 0 based on Foata normal form. 4/166 useless extension candidates. Maximal degree in co-relation 149. Up to 10 conditions per place. [2023-11-21 22:21:28,557 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 6 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2023-11-21 22:21:28,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 102 transitions, 251 flow [2023-11-21 22:21:28,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:21:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:21:28,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 743 transitions. [2023-11-21 22:21:28,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8845238095238095 [2023-11-21 22:21:28,561 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 743 transitions. [2023-11-21 22:21:28,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 743 transitions. [2023-11-21 22:21:28,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:28,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 743 transitions. [2023-11-21 22:21:28,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:28,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 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) [2023-11-21 22:21:28,567 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 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) [2023-11-21 22:21:28,567 INFO L175 Difference]: Start difference. First operand has 113 places, 103 transitions, 233 flow. Second operand 6 states and 743 transitions. [2023-11-21 22:21:28,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 102 transitions, 251 flow [2023-11-21 22:21:28,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 102 transitions, 247 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:28,571 INFO L231 Difference]: Finished difference. Result has 110 places, 102 transitions, 235 flow [2023-11-21 22:21:28,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=235, PETRI_PLACES=110, PETRI_TRANSITIONS=102} [2023-11-21 22:21:28,574 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -10 predicate places. [2023-11-21 22:21:28,574 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 102 transitions, 235 flow [2023-11-21 22:21:28,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 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) [2023-11-21 22:21:28,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:28,575 INFO L208 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] [2023-11-21 22:21:28,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:21:28,576 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:21:28,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:28,576 INFO L85 PathProgramCache]: Analyzing trace with hash 569307543, now seen corresponding path program 1 times [2023-11-21 22:21:28,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:28,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772409758] [2023-11-21 22:21:28,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:28,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:28,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:28,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772409758] [2023-11-21 22:21:28,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772409758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:28,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:28,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:28,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711853794] [2023-11-21 22:21:28,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:28,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:28,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:28,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:28,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:28,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 140 [2023-11-21 22:21:28,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 102 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2023-11-21 22:21:28,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:28,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 140 [2023-11-21 22:21:28,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:28,682 INFO L124 PetriNetUnfolderBase]: 19/200 cut-off events. [2023-11-21 22:21:28,683 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2023-11-21 22:21:28,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 200 events. 19/200 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 643 event pairs, 3 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 213. Up to 25 conditions per place. [2023-11-21 22:21:28,684 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 7 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2023-11-21 22:21:28,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 102 transitions, 254 flow [2023-11-21 22:21:28,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:28,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2023-11-21 22:21:28,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2023-11-21 22:21:28,687 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2023-11-21 22:21:28,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2023-11-21 22:21:28,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:28,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2023-11-21 22:21:28,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2023-11-21 22:21:28,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:28,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-11-21 22:21:28,690 INFO L175 Difference]: Start difference. First operand has 110 places, 102 transitions, 235 flow. Second operand 3 states and 385 transitions. [2023-11-21 22:21:28,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 102 transitions, 254 flow [2023-11-21 22:21:28,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 102 transitions, 247 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:21:28,695 INFO L231 Difference]: Finished difference. Result has 107 places, 101 transitions, 230 flow [2023-11-21 22:21:28,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=107, PETRI_TRANSITIONS=101} [2023-11-21 22:21:28,696 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -13 predicate places. [2023-11-21 22:21:28,696 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 101 transitions, 230 flow [2023-11-21 22:21:28,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2023-11-21 22:21:28,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:28,697 INFO L208 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] [2023-11-21 22:21:28,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:21:28,698 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:21:28,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:28,698 INFO L85 PathProgramCache]: Analyzing trace with hash -561029173, now seen corresponding path program 1 times [2023-11-21 22:21:28,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:28,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054901699] [2023-11-21 22:21:28,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:28,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:29,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:29,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054901699] [2023-11-21 22:21:29,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054901699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:29,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:29,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:21:29,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587349189] [2023-11-21 22:21:29,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:29,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:21:29,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:29,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:21:29,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:21:29,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 140 [2023-11-21 22:21:29,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 101 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 123.66666666666667) internal successors, (742), 6 states have internal predecessors, (742), 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) [2023-11-21 22:21:29,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:29,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 140 [2023-11-21 22:21:29,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:29,386 INFO L124 PetriNetUnfolderBase]: 10/170 cut-off events. [2023-11-21 22:21:29,386 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2023-11-21 22:21:29,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 170 events. 10/170 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 446 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 167. Up to 10 conditions per place. [2023-11-21 22:21:29,387 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 0 selfloop transitions, 0 changer transitions 100/100 dead transitions. [2023-11-21 22:21:29,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 100 transitions, 248 flow [2023-11-21 22:21:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:21:29,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:21:29,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 743 transitions. [2023-11-21 22:21:29,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8845238095238095 [2023-11-21 22:21:29,391 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 743 transitions. [2023-11-21 22:21:29,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 743 transitions. [2023-11-21 22:21:29,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:29,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 743 transitions. [2023-11-21 22:21:29,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:29,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 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) [2023-11-21 22:21:29,397 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 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) [2023-11-21 22:21:29,397 INFO L175 Difference]: Start difference. First operand has 107 places, 101 transitions, 230 flow. Second operand 6 states and 743 transitions. [2023-11-21 22:21:29,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 100 transitions, 248 flow [2023-11-21 22:21:29,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 100 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:29,400 INFO L231 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2023-11-21 22:21:29,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2023-11-21 22:21:29,401 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -11 predicate places. [2023-11-21 22:21:29,401 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2023-11-21 22:21:29,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.66666666666667) internal successors, (742), 6 states have internal predecessors, (742), 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) [2023-11-21 22:21:29,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2023-11-21 22:21:29,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-11-21 22:21:29,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-11-21 22:21:29,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-11-21 22:21:29,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-11-21 22:21:29,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-11-21 22:21:29,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-11-21 22:21:29,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-11-21 22:21:29,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-11-21 22:21:29,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-11-21 22:21:29,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-11-21 22:21:29,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-11-21 22:21:29,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-11-21 22:21:29,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-11-21 22:21:29,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 24 remaining) [2023-11-21 22:21:29,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 24 remaining) [2023-11-21 22:21:29,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-11-21 22:21:29,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-11-21 22:21:29,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-11-21 22:21:29,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-11-21 22:21:29,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-11-21 22:21:29,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-11-21 22:21:29,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-11-21 22:21:29,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-11-21 22:21:29,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:21:29,410 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:29,416 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:21:29,416 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:21:29,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:21:29 BasicIcfg [2023-11-21 22:21:29,428 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:21:29,429 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:21:29,429 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:21:29,429 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:21:29,430 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:25" (3/4) ... [2023-11-21 22:21:29,433 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:21:29,438 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-21 22:21:29,438 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-21 22:21:29,446 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-21 22:21:29,447 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 22:21:29,447 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:21:29,447 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:21:29,554 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:21:29,554 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:21:29,554 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:21:29,555 INFO L158 Benchmark]: Toolchain (without parser) took 4956.33ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 113.1MB in the beginning and 50.8MB in the end (delta: 62.3MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. [2023-11-21 22:21:29,555 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:21:29,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.37ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 101.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:21:29,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.10ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 99.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:21:29,557 INFO L158 Benchmark]: Boogie Preprocessor took 49.79ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 98.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:21:29,557 INFO L158 Benchmark]: RCFGBuilder took 519.28ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 82.7MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 22:21:29,558 INFO L158 Benchmark]: TraceAbstraction took 3945.77ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 82.0MB in the beginning and 55.0MB in the end (delta: 27.0MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2023-11-21 22:21:29,558 INFO L158 Benchmark]: Witness Printer took 125.59ms. Allocated memory is still 174.1MB. Free memory was 55.0MB in the beginning and 50.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:21:29,560 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.37ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 101.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.10ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 99.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.79ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 98.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 519.28ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 82.7MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3945.77ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 82.0MB in the beginning and 55.0MB in the end (delta: 27.0MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. * Witness Printer took 125.59ms. Allocated memory is still 174.1MB. Free memory was 55.0MB in the beginning and 50.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 188 locations, 24 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 227 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 338 IncrementalHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 38 mSDtfsCounter, 338 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=248occurred in iteration=6, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 400 ConstructedInterpolants, 0 QuantifiedInterpolants, 578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 22:21:29,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5448ad4b-dfe1-4f2e-ad2e-bf10c9b370e3/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE