./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-match-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme --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 2c931aeff3bd4feb775048ea000220a43a3b08d8a3667f51cb57a0babc9201aa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:04:23,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:23,544 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 12:04:23,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:23,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:23,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:23,591 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:23,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:23,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:04:23,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:04:23,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:23,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:23,600 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:23,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:23,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:04:23,603 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:04:23,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:23,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:04:23,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:23,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:04:23,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:04:23,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:04:23,606 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 12:04:23,607 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:23,607 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:04:23,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:04:23,608 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:23,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:23,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:23,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:04:23,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:23,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:23,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:04:23,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:04:23,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:04:23,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:04:23,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:04:23,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:04:23,614 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:04:23,614 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:04:23,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:04:23,615 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_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c931aeff3bd4feb775048ea000220a43a3b08d8a3667f51cb57a0babc9201aa [2023-11-26 12:04:23,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:24,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:24,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:24,009 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:24,010 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:24,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/chl-match-subst.wvr.c [2023-11-26 12:04:27,194 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:27,432 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:27,433 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/sv-benchmarks/c/weaver/chl-match-subst.wvr.c [2023-11-26 12:04:27,444 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/data/27188d292/6e9eb7fed1f6417786f6b25f1fcc7a6c/FLAG76d238574 [2023-11-26 12:04:27,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/data/27188d292/6e9eb7fed1f6417786f6b25f1fcc7a6c [2023-11-26 12:04:27,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:27,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:27,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:27,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:27,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:27,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7af82588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27, skipping insertion in model container [2023-11-26 12:04:27,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,506 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:27,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:27,743 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:04:27,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:27,808 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:04:27,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27 WrapperNode [2023-11-26 12:04:27,809 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:27,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:27,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:04:27,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:04:27,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,834 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,879 INFO L138 Inliner]: procedures = 23, calls = 35, calls flagged for inlining = 13, calls inlined = 23, statements flattened = 356 [2023-11-26 12:04:27,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:27,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:04:27,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:04:27,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:04:27,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:04:27,935 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:04:27,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:04:27,935 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:04:27,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:27,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:27,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:04:28,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:04:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:04:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 12:04:28,047 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 12:04:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 12:04:28,048 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 12:04:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 12:04:28,048 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 12:04:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:04:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:04:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:04:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:04:28,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:04:28,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:04:28,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:04:28,056 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:04:28,287 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:04:28,290 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:04:28,992 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:04:29,027 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:04:29,029 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:04:29,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:29 BoogieIcfgContainer [2023-11-26 12:04:29,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:04:29,035 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:04:29,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:04:29,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:04:29,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:04:27" (1/3) ... [2023-11-26 12:04:29,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d91461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:29, skipping insertion in model container [2023-11-26 12:04:29,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (2/3) ... [2023-11-26 12:04:29,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d91461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:29, skipping insertion in model container [2023-11-26 12:04:29,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:29" (3/3) ... [2023-11-26 12:04:29,043 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-subst.wvr.c [2023-11-26 12:04:29,051 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:04:29,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:04:29,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-26 12:04:29,062 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:04:29,255 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 12:04:29,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 476 places, 484 transitions, 989 flow [2023-11-26 12:04:29,589 INFO L124 PetriNetUnfolderBase]: 18/481 cut-off events. [2023-11-26 12:04:29,590 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 12:04:29,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 481 events. 18/481 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 825 event pairs, 0 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 311. Up to 2 conditions per place. [2023-11-26 12:04:29,608 INFO L82 GeneralOperation]: Start removeDead. Operand has 476 places, 484 transitions, 989 flow [2023-11-26 12:04:29,623 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 449 places, 455 transitions, 928 flow [2023-11-26 12:04:29,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:04:29,643 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;@7b5512cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:04:29,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2023-11-26 12:04:29,649 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:04:29,650 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-26 12:04:29,650 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:04:29,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:29,651 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] [2023-11-26 12:04:29,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:29,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:29,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1194569078, now seen corresponding path program 1 times [2023-11-26 12:04:29,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:29,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341586525] [2023-11-26 12:04:29,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:29,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:29,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:29,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341586525] [2023-11-26 12:04:29,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341586525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:29,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:29,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:29,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880228998] [2023-11-26 12:04:29,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:29,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:29,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:29,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:29,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:30,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 484 [2023-11-26 12:04:30,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 455 transitions, 928 flow. Second operand has 3 states, 3 states have (on average 453.3333333333333) internal successors, (1360), 3 states have internal predecessors, (1360), 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) [2023-11-26 12:04:30,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:30,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 484 [2023-11-26 12:04:30,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:30,873 INFO L124 PetriNetUnfolderBase]: 33/1471 cut-off events. [2023-11-26 12:04:30,873 INFO L125 PetriNetUnfolderBase]: For 30/32 co-relation queries the response was YES. [2023-11-26 12:04:30,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1558 conditions, 1471 events. 33/1471 cut-off events. For 30/32 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6989 event pairs, 20 based on Foata normal form. 80/1337 useless extension candidates. Maximal degree in co-relation 1363. Up to 50 conditions per place. [2023-11-26 12:04:30,911 INFO L140 encePairwiseOnDemand]: 468/484 looper letters, 13 selfloop transitions, 2 changer transitions 1/441 dead transitions. [2023-11-26 12:04:30,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 441 transitions, 930 flow [2023-11-26 12:04:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:30,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:30,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2023-11-26 12:04:30,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9538567493112947 [2023-11-26 12:04:30,943 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2023-11-26 12:04:30,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2023-11-26 12:04:30,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:30,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2023-11-26 12:04:30,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 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) [2023-11-26 12:04:30,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:30,976 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:30,979 INFO L175 Difference]: Start difference. First operand has 449 places, 455 transitions, 928 flow. Second operand 3 states and 1385 transitions. [2023-11-26 12:04:30,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 441 transitions, 930 flow [2023-11-26 12:04:30,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 441 transitions, 918 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 12:04:31,008 INFO L231 Difference]: Finished difference. Result has 444 places, 440 transitions, 890 flow [2023-11-26 12:04:31,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=890, PETRI_PLACES=444, PETRI_TRANSITIONS=440} [2023-11-26 12:04:31,018 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -5 predicate places. [2023-11-26 12:04:31,018 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 440 transitions, 890 flow [2023-11-26 12:04:31,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.3333333333333) internal successors, (1360), 3 states have internal predecessors, (1360), 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) [2023-11-26 12:04:31,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:31,021 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] [2023-11-26 12:04:31,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:04:31,022 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:31,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:31,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1302496594, now seen corresponding path program 1 times [2023-11-26 12:04:31,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:31,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442953254] [2023-11-26 12:04:31,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:31,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:31,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:31,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442953254] [2023-11-26 12:04:31,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442953254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:31,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:31,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:31,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197772419] [2023-11-26 12:04:31,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:31,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:31,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:31,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:31,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:31,204 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 484 [2023-11-26 12:04:31,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 440 transitions, 890 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:31,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:31,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 484 [2023-11-26 12:04:31,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:31,547 INFO L124 PetriNetUnfolderBase]: 16/980 cut-off events. [2023-11-26 12:04:31,548 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 12:04:31,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 980 events. 16/980 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4125 event pairs, 7 based on Foata normal form. 0/835 useless extension candidates. Maximal degree in co-relation 981. Up to 25 conditions per place. [2023-11-26 12:04:31,575 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 11 selfloop transitions, 2 changer transitions 0/439 dead transitions. [2023-11-26 12:04:31,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 439 transitions, 914 flow [2023-11-26 12:04:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:31,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:31,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2023-11-26 12:04:31,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9476584022038568 [2023-11-26 12:04:31,582 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1376 transitions. [2023-11-26 12:04:31,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1376 transitions. [2023-11-26 12:04:31,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:31,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1376 transitions. [2023-11-26 12:04:31,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 458.6666666666667) internal successors, (1376), 3 states have internal predecessors, (1376), 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) [2023-11-26 12:04:31,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:31,596 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:31,596 INFO L175 Difference]: Start difference. First operand has 444 places, 440 transitions, 890 flow. Second operand 3 states and 1376 transitions. [2023-11-26 12:04:31,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 439 transitions, 914 flow [2023-11-26 12:04:31,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 439 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:31,609 INFO L231 Difference]: Finished difference. Result has 442 places, 439 transitions, 888 flow [2023-11-26 12:04:31,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=888, PETRI_PLACES=442, PETRI_TRANSITIONS=439} [2023-11-26 12:04:31,611 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -7 predicate places. [2023-11-26 12:04:31,611 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 439 transitions, 888 flow [2023-11-26 12:04:31,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:31,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:31,614 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] [2023-11-26 12:04:31,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:04:31,618 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:31,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:31,619 INFO L85 PathProgramCache]: Analyzing trace with hash -289686806, now seen corresponding path program 1 times [2023-11-26 12:04:31,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:31,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910546113] [2023-11-26 12:04:31,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:31,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:31,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:31,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910546113] [2023-11-26 12:04:31,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910546113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:31,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:31,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:31,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695907559] [2023-11-26 12:04:31,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:31,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:31,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:31,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:31,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:31,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 484 [2023-11-26 12:04:31,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 439 transitions, 888 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:31,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:31,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 484 [2023-11-26 12:04:31,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:32,024 INFO L124 PetriNetUnfolderBase]: 16/961 cut-off events. [2023-11-26 12:04:32,024 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 12:04:32,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 999 conditions, 961 events. 16/961 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4012 event pairs, 7 based on Foata normal form. 0/824 useless extension candidates. Maximal degree in co-relation 954. Up to 25 conditions per place. [2023-11-26 12:04:32,049 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 11 selfloop transitions, 2 changer transitions 0/438 dead transitions. [2023-11-26 12:04:32,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 438 transitions, 912 flow [2023-11-26 12:04:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:32,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:32,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2023-11-26 12:04:32,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9476584022038568 [2023-11-26 12:04:32,055 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1376 transitions. [2023-11-26 12:04:32,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1376 transitions. [2023-11-26 12:04:32,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:32,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1376 transitions. [2023-11-26 12:04:32,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 458.6666666666667) internal successors, (1376), 3 states have internal predecessors, (1376), 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) [2023-11-26 12:04:32,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:32,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:32,070 INFO L175 Difference]: Start difference. First operand has 442 places, 439 transitions, 888 flow. Second operand 3 states and 1376 transitions. [2023-11-26 12:04:32,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 438 transitions, 912 flow [2023-11-26 12:04:32,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 438 transitions, 908 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:32,084 INFO L231 Difference]: Finished difference. Result has 441 places, 438 transitions, 886 flow [2023-11-26 12:04:32,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=886, PETRI_PLACES=441, PETRI_TRANSITIONS=438} [2023-11-26 12:04:32,086 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -8 predicate places. [2023-11-26 12:04:32,087 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 438 transitions, 886 flow [2023-11-26 12:04:32,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:32,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:32,089 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] [2023-11-26 12:04:32,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:04:32,089 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:32,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:32,090 INFO L85 PathProgramCache]: Analyzing trace with hash -992189789, now seen corresponding path program 1 times [2023-11-26 12:04:32,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:32,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150391723] [2023-11-26 12:04:32,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:32,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:32,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:32,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150391723] [2023-11-26 12:04:32,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150391723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:32,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:32,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:32,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145288889] [2023-11-26 12:04:32,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:32,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:32,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:32,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:32,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:32,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 484 [2023-11-26 12:04:32,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 438 transitions, 886 flow. Second operand has 3 states, 3 states have (on average 453.3333333333333) internal successors, (1360), 3 states have internal predecessors, (1360), 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) [2023-11-26 12:04:32,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:32,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 484 [2023-11-26 12:04:32,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:32,508 INFO L124 PetriNetUnfolderBase]: 19/877 cut-off events. [2023-11-26 12:04:32,508 INFO L125 PetriNetUnfolderBase]: For 7/11 co-relation queries the response was YES. [2023-11-26 12:04:32,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 877 events. 19/877 cut-off events. For 7/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3122 event pairs, 12 based on Foata normal form. 0/758 useless extension candidates. Maximal degree in co-relation 875. Up to 38 conditions per place. [2023-11-26 12:04:32,530 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 13 selfloop transitions, 2 changer transitions 0/437 dead transitions. [2023-11-26 12:04:32,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 437 transitions, 914 flow [2023-11-26 12:04:32,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:32,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:32,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1372 transitions. [2023-11-26 12:04:32,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9449035812672176 [2023-11-26 12:04:32,536 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1372 transitions. [2023-11-26 12:04:32,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1372 transitions. [2023-11-26 12:04:32,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:32,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1372 transitions. [2023-11-26 12:04:32,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 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) [2023-11-26 12:04:32,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:32,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:32,551 INFO L175 Difference]: Start difference. First operand has 441 places, 438 transitions, 886 flow. Second operand 3 states and 1372 transitions. [2023-11-26 12:04:32,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 437 transitions, 914 flow [2023-11-26 12:04:32,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 437 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:32,564 INFO L231 Difference]: Finished difference. Result has 440 places, 437 transitions, 884 flow [2023-11-26 12:04:32,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=884, PETRI_PLACES=440, PETRI_TRANSITIONS=437} [2023-11-26 12:04:32,568 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -9 predicate places. [2023-11-26 12:04:32,568 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 437 transitions, 884 flow [2023-11-26 12:04:32,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.3333333333333) internal successors, (1360), 3 states have internal predecessors, (1360), 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) [2023-11-26 12:04:32,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:32,570 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] [2023-11-26 12:04:32,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:04:32,571 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:32,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:32,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1401398705, now seen corresponding path program 1 times [2023-11-26 12:04:32,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:32,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475219777] [2023-11-26 12:04:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:32,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:32,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:32,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475219777] [2023-11-26 12:04:32,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475219777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:32,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:32,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:32,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502979361] [2023-11-26 12:04:32,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:32,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:32,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:32,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:32,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:32,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 484 [2023-11-26 12:04:32,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 437 transitions, 884 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:32,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:32,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 484 [2023-11-26 12:04:32,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:32,949 INFO L124 PetriNetUnfolderBase]: 12/815 cut-off events. [2023-11-26 12:04:32,949 INFO L125 PetriNetUnfolderBase]: For 5/10 co-relation queries the response was YES. [2023-11-26 12:04:32,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 815 events. 12/815 cut-off events. For 5/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2308 event pairs, 5 based on Foata normal form. 0/700 useless extension candidates. Maximal degree in co-relation 787. Up to 22 conditions per place. [2023-11-26 12:04:32,971 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 11 selfloop transitions, 2 changer transitions 0/436 dead transitions. [2023-11-26 12:04:32,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 436 transitions, 908 flow [2023-11-26 12:04:32,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:32,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:32,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2023-11-26 12:04:32,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9476584022038568 [2023-11-26 12:04:32,982 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1376 transitions. [2023-11-26 12:04:32,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1376 transitions. [2023-11-26 12:04:32,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:32,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1376 transitions. [2023-11-26 12:04:32,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 458.6666666666667) internal successors, (1376), 3 states have internal predecessors, (1376), 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) [2023-11-26 12:04:32,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:32,996 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:32,996 INFO L175 Difference]: Start difference. First operand has 440 places, 437 transitions, 884 flow. Second operand 3 states and 1376 transitions. [2023-11-26 12:04:32,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 436 transitions, 908 flow [2023-11-26 12:04:33,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 436 transitions, 904 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:33,009 INFO L231 Difference]: Finished difference. Result has 439 places, 436 transitions, 882 flow [2023-11-26 12:04:33,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=882, PETRI_PLACES=439, PETRI_TRANSITIONS=436} [2023-11-26 12:04:33,013 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -10 predicate places. [2023-11-26 12:04:33,014 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 436 transitions, 882 flow [2023-11-26 12:04:33,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:33,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:33,015 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:33,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:04:33,016 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:33,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:33,018 INFO L85 PathProgramCache]: Analyzing trace with hash -123798497, now seen corresponding path program 1 times [2023-11-26 12:04:33,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:33,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384964250] [2023-11-26 12:04:33,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:33,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:33,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:33,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:33,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384964250] [2023-11-26 12:04:33,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384964250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:33,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:33,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:33,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570480014] [2023-11-26 12:04:33,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:33,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:33,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:33,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:33,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:33,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 484 [2023-11-26 12:04:33,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 436 transitions, 882 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:33,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:33,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 484 [2023-11-26 12:04:33,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:33,400 INFO L124 PetriNetUnfolderBase]: 12/808 cut-off events. [2023-11-26 12:04:33,400 INFO L125 PetriNetUnfolderBase]: For 5/10 co-relation queries the response was YES. [2023-11-26 12:04:33,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 808 events. 12/808 cut-off events. For 5/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2272 event pairs, 5 based on Foata normal form. 0/696 useless extension candidates. Maximal degree in co-relation 772. Up to 22 conditions per place. [2023-11-26 12:04:33,415 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 11 selfloop transitions, 2 changer transitions 0/435 dead transitions. [2023-11-26 12:04:33,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 435 transitions, 906 flow [2023-11-26 12:04:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:33,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:33,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2023-11-26 12:04:33,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9476584022038568 [2023-11-26 12:04:33,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1376 transitions. [2023-11-26 12:04:33,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1376 transitions. [2023-11-26 12:04:33,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:33,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1376 transitions. [2023-11-26 12:04:33,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 458.6666666666667) internal successors, (1376), 3 states have internal predecessors, (1376), 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) [2023-11-26 12:04:33,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:33,433 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:33,434 INFO L175 Difference]: Start difference. First operand has 439 places, 436 transitions, 882 flow. Second operand 3 states and 1376 transitions. [2023-11-26 12:04:33,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 435 transitions, 906 flow [2023-11-26 12:04:33,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 435 transitions, 902 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:33,445 INFO L231 Difference]: Finished difference. Result has 438 places, 435 transitions, 880 flow [2023-11-26 12:04:33,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=880, PETRI_PLACES=438, PETRI_TRANSITIONS=435} [2023-11-26 12:04:33,447 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -11 predicate places. [2023-11-26 12:04:33,447 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 435 transitions, 880 flow [2023-11-26 12:04:33,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:33,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:33,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:33,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:04:33,449 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:33,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:33,450 INFO L85 PathProgramCache]: Analyzing trace with hash -919362769, now seen corresponding path program 1 times [2023-11-26 12:04:33,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:33,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561892543] [2023-11-26 12:04:33,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:33,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:33,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:33,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:33,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561892543] [2023-11-26 12:04:33,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561892543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:33,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:33,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:33,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413929488] [2023-11-26 12:04:33,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:33,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:33,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:33,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:33,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:33,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 484 [2023-11-26 12:04:33,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 435 transitions, 880 flow. Second operand has 3 states, 3 states have (on average 453.3333333333333) internal successors, (1360), 3 states have internal predecessors, (1360), 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) [2023-11-26 12:04:33,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:33,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 484 [2023-11-26 12:04:33,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:33,782 INFO L124 PetriNetUnfolderBase]: 26/748 cut-off events. [2023-11-26 12:04:33,783 INFO L125 PetriNetUnfolderBase]: For 13/16 co-relation queries the response was YES. [2023-11-26 12:04:33,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 809 conditions, 748 events. 26/748 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2750 event pairs, 20 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 732. Up to 50 conditions per place. [2023-11-26 12:04:33,801 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 13 selfloop transitions, 2 changer transitions 0/434 dead transitions. [2023-11-26 12:04:33,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 434 transitions, 908 flow [2023-11-26 12:04:33,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:33,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1372 transitions. [2023-11-26 12:04:33,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9449035812672176 [2023-11-26 12:04:33,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1372 transitions. [2023-11-26 12:04:33,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1372 transitions. [2023-11-26 12:04:33,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:33,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1372 transitions. [2023-11-26 12:04:33,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 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) [2023-11-26 12:04:33,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:33,819 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:33,819 INFO L175 Difference]: Start difference. First operand has 438 places, 435 transitions, 880 flow. Second operand 3 states and 1372 transitions. [2023-11-26 12:04:33,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 434 transitions, 908 flow [2023-11-26 12:04:33,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 434 transitions, 904 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:33,830 INFO L231 Difference]: Finished difference. Result has 437 places, 434 transitions, 878 flow [2023-11-26 12:04:33,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=878, PETRI_PLACES=437, PETRI_TRANSITIONS=434} [2023-11-26 12:04:33,832 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -12 predicate places. [2023-11-26 12:04:33,832 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 434 transitions, 878 flow [2023-11-26 12:04:33,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.3333333333333) internal successors, (1360), 3 states have internal predecessors, (1360), 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) [2023-11-26 12:04:33,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:33,833 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:33,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:04:33,834 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:33,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:33,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1713759090, now seen corresponding path program 1 times [2023-11-26 12:04:33,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:33,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908781456] [2023-11-26 12:04:33,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:33,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:33,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:33,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908781456] [2023-11-26 12:04:33,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908781456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:33,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:33,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:33,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433546207] [2023-11-26 12:04:33,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:33,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:33,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:33,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:33,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:33,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 484 [2023-11-26 12:04:33,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 434 transitions, 878 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:33,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:33,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 484 [2023-11-26 12:04:33,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:34,088 INFO L124 PetriNetUnfolderBase]: 14/720 cut-off events. [2023-11-26 12:04:34,088 INFO L125 PetriNetUnfolderBase]: For 7/16 co-relation queries the response was YES. [2023-11-26 12:04:34,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 720 events. 14/720 cut-off events. For 7/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1964 event pairs, 7 based on Foata normal form. 0/621 useless extension candidates. Maximal degree in co-relation 670. Up to 25 conditions per place. [2023-11-26 12:04:34,102 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 11 selfloop transitions, 2 changer transitions 0/433 dead transitions. [2023-11-26 12:04:34,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 433 transitions, 902 flow [2023-11-26 12:04:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:34,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:34,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2023-11-26 12:04:34,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9476584022038568 [2023-11-26 12:04:34,108 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1376 transitions. [2023-11-26 12:04:34,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1376 transitions. [2023-11-26 12:04:34,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:34,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1376 transitions. [2023-11-26 12:04:34,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 458.6666666666667) internal successors, (1376), 3 states have internal predecessors, (1376), 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) [2023-11-26 12:04:34,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:34,119 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:34,119 INFO L175 Difference]: Start difference. First operand has 437 places, 434 transitions, 878 flow. Second operand 3 states and 1376 transitions. [2023-11-26 12:04:34,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 433 transitions, 902 flow [2023-11-26 12:04:34,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 433 transitions, 898 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:34,155 INFO L231 Difference]: Finished difference. Result has 436 places, 433 transitions, 876 flow [2023-11-26 12:04:34,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=436, PETRI_TRANSITIONS=433} [2023-11-26 12:04:34,157 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -13 predicate places. [2023-11-26 12:04:34,157 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 433 transitions, 876 flow [2023-11-26 12:04:34,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:34,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:34,159 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:34,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:04:34,159 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:34,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1802523520, now seen corresponding path program 1 times [2023-11-26 12:04:34,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:34,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894215336] [2023-11-26 12:04:34,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:34,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:34,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894215336] [2023-11-26 12:04:34,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894215336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:34,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:34,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:34,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961357642] [2023-11-26 12:04:34,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:34,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:34,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:34,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:34,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:34,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 484 [2023-11-26 12:04:34,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 433 transitions, 876 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:34,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:34,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 484 [2023-11-26 12:04:34,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:34,463 INFO L124 PetriNetUnfolderBase]: 14/710 cut-off events. [2023-11-26 12:04:34,464 INFO L125 PetriNetUnfolderBase]: For 7/16 co-relation queries the response was YES. [2023-11-26 12:04:34,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 710 events. 14/710 cut-off events. For 7/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1932 event pairs, 7 based on Foata normal form. 0/615 useless extension candidates. Maximal degree in co-relation 652. Up to 25 conditions per place. [2023-11-26 12:04:34,478 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 11 selfloop transitions, 2 changer transitions 0/432 dead transitions. [2023-11-26 12:04:34,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 432 transitions, 900 flow [2023-11-26 12:04:34,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:34,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:34,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2023-11-26 12:04:34,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9476584022038568 [2023-11-26 12:04:34,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1376 transitions. [2023-11-26 12:04:34,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1376 transitions. [2023-11-26 12:04:34,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:34,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1376 transitions. [2023-11-26 12:04:34,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 458.6666666666667) internal successors, (1376), 3 states have internal predecessors, (1376), 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) [2023-11-26 12:04:34,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:34,495 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:34,495 INFO L175 Difference]: Start difference. First operand has 436 places, 433 transitions, 876 flow. Second operand 3 states and 1376 transitions. [2023-11-26 12:04:34,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 432 transitions, 900 flow [2023-11-26 12:04:34,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 432 transitions, 896 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:34,506 INFO L231 Difference]: Finished difference. Result has 435 places, 432 transitions, 874 flow [2023-11-26 12:04:34,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=435, PETRI_TRANSITIONS=432} [2023-11-26 12:04:34,508 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -14 predicate places. [2023-11-26 12:04:34,508 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 432 transitions, 874 flow [2023-11-26 12:04:34,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2023-11-26 12:04:34,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:34,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:34,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:04:34,510 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:34,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1233194182, now seen corresponding path program 1 times [2023-11-26 12:04:34,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:34,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682526328] [2023-11-26 12:04:34,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:34,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:34,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682526328] [2023-11-26 12:04:34,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682526328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:34,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:34,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:34,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342459923] [2023-11-26 12:04:34,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:34,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:34,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:34,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:34,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:34,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 484 [2023-11-26 12:04:34,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 432 transitions, 874 flow. Second operand has 3 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 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) [2023-11-26 12:04:34,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:34,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 484 [2023-11-26 12:04:34,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:34,834 INFO L124 PetriNetUnfolderBase]: 31/1154 cut-off events. [2023-11-26 12:04:34,835 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 12:04:34,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1219 conditions, 1154 events. 31/1154 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5722 event pairs, 6 based on Foata normal form. 0/994 useless extension candidates. Maximal degree in co-relation 1118. Up to 43 conditions per place. [2023-11-26 12:04:34,857 INFO L140 encePairwiseOnDemand]: 480/484 looper letters, 13 selfloop transitions, 2 changer transitions 0/434 dead transitions. [2023-11-26 12:04:34,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 434 transitions, 910 flow [2023-11-26 12:04:34,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:34,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:34,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2023-11-26 12:04:34,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9538567493112947 [2023-11-26 12:04:34,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2023-11-26 12:04:34,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2023-11-26 12:04:34,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:34,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2023-11-26 12:04:34,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 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) [2023-11-26 12:04:34,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:34,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:34,873 INFO L175 Difference]: Start difference. First operand has 435 places, 432 transitions, 874 flow. Second operand 3 states and 1385 transitions. [2023-11-26 12:04:34,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 434 transitions, 910 flow [2023-11-26 12:04:34,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 434 transitions, 906 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:34,884 INFO L231 Difference]: Finished difference. Result has 434 places, 432 transitions, 880 flow [2023-11-26 12:04:34,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=880, PETRI_PLACES=434, PETRI_TRANSITIONS=432} [2023-11-26 12:04:34,886 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -15 predicate places. [2023-11-26 12:04:34,887 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 432 transitions, 880 flow [2023-11-26 12:04:34,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 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) [2023-11-26 12:04:34,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:34,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:34,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:04:34,888 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:34,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,889 INFO L85 PathProgramCache]: Analyzing trace with hash 311399260, now seen corresponding path program 1 times [2023-11-26 12:04:34,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:34,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066273026] [2023-11-26 12:04:34,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:34,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:34,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066273026] [2023-11-26 12:04:34,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066273026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:34,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:34,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:34,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056974556] [2023-11-26 12:04:34,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:34,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:34,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:34,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:34,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:34,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 484 [2023-11-26 12:04:34,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 432 transitions, 880 flow. Second operand has 3 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 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) [2023-11-26 12:04:34,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:34,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 484 [2023-11-26 12:04:34,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:35,383 INFO L124 PetriNetUnfolderBase]: 40/1691 cut-off events. [2023-11-26 12:04:35,384 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 12:04:35,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1769 conditions, 1691 events. 40/1691 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10967 event pairs, 14 based on Foata normal form. 0/1461 useless extension candidates. Maximal degree in co-relation 1375. Up to 49 conditions per place. [2023-11-26 12:04:35,412 INFO L140 encePairwiseOnDemand]: 480/484 looper letters, 13 selfloop transitions, 2 changer transitions 0/434 dead transitions. [2023-11-26 12:04:35,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 434 transitions, 916 flow [2023-11-26 12:04:35,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:35,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:35,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2023-11-26 12:04:35,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9538567493112947 [2023-11-26 12:04:35,418 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2023-11-26 12:04:35,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2023-11-26 12:04:35,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:35,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2023-11-26 12:04:35,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 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) [2023-11-26 12:04:35,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:35,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:35,429 INFO L175 Difference]: Start difference. First operand has 434 places, 432 transitions, 880 flow. Second operand 3 states and 1385 transitions. [2023-11-26 12:04:35,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 434 transitions, 916 flow [2023-11-26 12:04:35,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 434 transitions, 916 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:04:35,440 INFO L231 Difference]: Finished difference. Result has 435 places, 432 transitions, 890 flow [2023-11-26 12:04:35,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=890, PETRI_PLACES=435, PETRI_TRANSITIONS=432} [2023-11-26 12:04:35,442 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -14 predicate places. [2023-11-26 12:04:35,442 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 432 transitions, 890 flow [2023-11-26 12:04:35,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 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) [2023-11-26 12:04:35,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:35,443 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:35,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:04:35,443 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:35,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:35,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1810070779, now seen corresponding path program 1 times [2023-11-26 12:04:35,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:35,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893685940] [2023-11-26 12:04:35,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:35,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:35,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:35,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893685940] [2023-11-26 12:04:35,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893685940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:35,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:35,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:35,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707921216] [2023-11-26 12:04:35,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:35,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:35,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:35,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:35,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:35,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 484 [2023-11-26 12:04:35,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 432 transitions, 890 flow. Second operand has 3 states, 3 states have (on average 458.0) internal successors, (1374), 3 states have internal predecessors, (1374), 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) [2023-11-26 12:04:35,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:35,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 484 [2023-11-26 12:04:35,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:35,844 INFO L124 PetriNetUnfolderBase]: 24/958 cut-off events. [2023-11-26 12:04:35,844 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 12:04:35,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 958 events. 24/958 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4523 event pairs, 4 based on Foata normal form. 0/835 useless extension candidates. Maximal degree in co-relation 815. Up to 31 conditions per place. [2023-11-26 12:04:35,873 INFO L140 encePairwiseOnDemand]: 480/484 looper letters, 13 selfloop transitions, 2 changer transitions 0/434 dead transitions. [2023-11-26 12:04:35,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 434 transitions, 926 flow [2023-11-26 12:04:35,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:35,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:35,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2023-11-26 12:04:35,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9538567493112947 [2023-11-26 12:04:35,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2023-11-26 12:04:35,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2023-11-26 12:04:35,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:35,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2023-11-26 12:04:35,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 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) [2023-11-26 12:04:35,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:35,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:35,891 INFO L175 Difference]: Start difference. First operand has 435 places, 432 transitions, 890 flow. Second operand 3 states and 1385 transitions. [2023-11-26 12:04:35,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 434 transitions, 926 flow [2023-11-26 12:04:35,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 434 transitions, 926 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:04:35,903 INFO L231 Difference]: Finished difference. Result has 436 places, 432 transitions, 900 flow [2023-11-26 12:04:35,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=900, PETRI_PLACES=436, PETRI_TRANSITIONS=432} [2023-11-26 12:04:35,906 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -13 predicate places. [2023-11-26 12:04:35,906 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 432 transitions, 900 flow [2023-11-26 12:04:35,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.0) internal successors, (1374), 3 states have internal predecessors, (1374), 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) [2023-11-26 12:04:35,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:35,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:35,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:04:35,908 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:35,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:35,908 INFO L85 PathProgramCache]: Analyzing trace with hash -16223257, now seen corresponding path program 1 times [2023-11-26 12:04:35,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:35,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002435974] [2023-11-26 12:04:35,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:35,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:35,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:35,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:35,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002435974] [2023-11-26 12:04:35,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002435974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:35,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:35,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:35,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622970204] [2023-11-26 12:04:35,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:35,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:35,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:35,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:35,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:35,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 484 [2023-11-26 12:04:36,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 432 transitions, 900 flow. Second operand has 3 states, 3 states have (on average 458.0) internal successors, (1374), 3 states have internal predecessors, (1374), 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) [2023-11-26 12:04:36,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:36,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 484 [2023-11-26 12:04:36,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:36,314 INFO L124 PetriNetUnfolderBase]: 26/1015 cut-off events. [2023-11-26 12:04:36,314 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-26 12:04:36,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 1015 events. 26/1015 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4942 event pairs, 4 based on Foata normal form. 0/889 useless extension candidates. Maximal degree in co-relation 882. Up to 35 conditions per place. [2023-11-26 12:04:36,346 INFO L140 encePairwiseOnDemand]: 480/484 looper letters, 13 selfloop transitions, 2 changer transitions 0/434 dead transitions. [2023-11-26 12:04:36,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 434 transitions, 936 flow [2023-11-26 12:04:36,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:36,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:36,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2023-11-26 12:04:36,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9538567493112947 [2023-11-26 12:04:36,353 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2023-11-26 12:04:36,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2023-11-26 12:04:36,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:36,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2023-11-26 12:04:36,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 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) [2023-11-26 12:04:36,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:36,365 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:36,365 INFO L175 Difference]: Start difference. First operand has 436 places, 432 transitions, 900 flow. Second operand 3 states and 1385 transitions. [2023-11-26 12:04:36,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 434 transitions, 936 flow [2023-11-26 12:04:36,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 434 transitions, 936 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:04:36,378 INFO L231 Difference]: Finished difference. Result has 437 places, 432 transitions, 910 flow [2023-11-26 12:04:36,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=910, PETRI_PLACES=437, PETRI_TRANSITIONS=432} [2023-11-26 12:04:36,380 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -12 predicate places. [2023-11-26 12:04:36,381 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 432 transitions, 910 flow [2023-11-26 12:04:36,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.0) internal successors, (1374), 3 states have internal predecessors, (1374), 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) [2023-11-26 12:04:36,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:36,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:36,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:04:36,382 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:36,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:36,383 INFO L85 PathProgramCache]: Analyzing trace with hash 618102939, now seen corresponding path program 1 times [2023-11-26 12:04:36,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:36,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197874832] [2023-11-26 12:04:36,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:36,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:37,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:37,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197874832] [2023-11-26 12:04:37,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197874832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:37,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:37,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:04:37,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616892086] [2023-11-26 12:04:37,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:37,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:04:37,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:37,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:04:37,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:04:37,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 484 [2023-11-26 12:04:37,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 432 transitions, 910 flow. Second operand has 6 states, 6 states have (on average 454.6666666666667) internal successors, (2728), 6 states have internal predecessors, (2728), 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) [2023-11-26 12:04:37,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:37,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 484 [2023-11-26 12:04:37,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:37,444 INFO L124 PetriNetUnfolderBase]: 11/743 cut-off events. [2023-11-26 12:04:37,445 INFO L125 PetriNetUnfolderBase]: For 7/24 co-relation queries the response was YES. [2023-11-26 12:04:37,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 797 conditions, 743 events. 11/743 cut-off events. For 7/24 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2818 event pairs, 0 based on Foata normal form. 12/671 useless extension candidates. Maximal degree in co-relation 591. Up to 9 conditions per place. [2023-11-26 12:04:37,464 INFO L140 encePairwiseOnDemand]: 479/484 looper letters, 9 selfloop transitions, 4 changer transitions 0/431 dead transitions. [2023-11-26 12:04:37,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 431 transitions, 934 flow [2023-11-26 12:04:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:04:37,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:04:37,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2732 transitions. [2023-11-26 12:04:37,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.940771349862259 [2023-11-26 12:04:37,473 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2732 transitions. [2023-11-26 12:04:37,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2732 transitions. [2023-11-26 12:04:37,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:37,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2732 transitions. [2023-11-26 12:04:37,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 455.3333333333333) internal successors, (2732), 6 states have internal predecessors, (2732), 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) [2023-11-26 12:04:37,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 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) [2023-11-26 12:04:37,491 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 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) [2023-11-26 12:04:37,492 INFO L175 Difference]: Start difference. First operand has 437 places, 432 transitions, 910 flow. Second operand 6 states and 2732 transitions. [2023-11-26 12:04:37,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 431 transitions, 934 flow [2023-11-26 12:04:37,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 431 transitions, 934 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:04:37,503 INFO L231 Difference]: Finished difference. Result has 441 places, 431 transitions, 916 flow [2023-11-26 12:04:37,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=916, PETRI_PLACES=441, PETRI_TRANSITIONS=431} [2023-11-26 12:04:37,505 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -8 predicate places. [2023-11-26 12:04:37,505 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 431 transitions, 916 flow [2023-11-26 12:04:37,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 454.6666666666667) internal successors, (2728), 6 states have internal predecessors, (2728), 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) [2023-11-26 12:04:37,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:37,506 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:37,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 12:04:37,507 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:37,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:37,507 INFO L85 PathProgramCache]: Analyzing trace with hash -982272575, now seen corresponding path program 1 times [2023-11-26 12:04:37,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:37,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336397212] [2023-11-26 12:04:37,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:37,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:37,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:37,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336397212] [2023-11-26 12:04:37,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336397212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:37,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:37,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:37,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005061265] [2023-11-26 12:04:37,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:37,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:37,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:37,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:37,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:37,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 484 [2023-11-26 12:04:37,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 431 transitions, 916 flow. Second operand has 3 states, 3 states have (on average 457.6666666666667) internal successors, (1373), 3 states have internal predecessors, (1373), 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) [2023-11-26 12:04:37,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:37,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 484 [2023-11-26 12:04:37,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:38,058 INFO L124 PetriNetUnfolderBase]: 66/1865 cut-off events. [2023-11-26 12:04:38,058 INFO L125 PetriNetUnfolderBase]: For 21/25 co-relation queries the response was YES. [2023-11-26 12:04:38,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2000 conditions, 1865 events. 66/1865 cut-off events. For 21/25 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 11517 event pairs, 18 based on Foata normal form. 0/1592 useless extension candidates. Maximal degree in co-relation 1672. Up to 80 conditions per place. [2023-11-26 12:04:38,098 INFO L140 encePairwiseOnDemand]: 480/484 looper letters, 13 selfloop transitions, 2 changer transitions 0/433 dead transitions. [2023-11-26 12:04:38,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 433 transitions, 952 flow [2023-11-26 12:04:38,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:38,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:38,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2023-11-26 12:04:38,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9538567493112947 [2023-11-26 12:04:38,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2023-11-26 12:04:38,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2023-11-26 12:04:38,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:38,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2023-11-26 12:04:38,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 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) [2023-11-26 12:04:38,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:38,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:38,115 INFO L175 Difference]: Start difference. First operand has 441 places, 431 transitions, 916 flow. Second operand 3 states and 1385 transitions. [2023-11-26 12:04:38,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 433 transitions, 952 flow [2023-11-26 12:04:38,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 433 transitions, 945 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 12:04:38,130 INFO L231 Difference]: Finished difference. Result has 438 places, 431 transitions, 919 flow [2023-11-26 12:04:38,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=919, PETRI_PLACES=438, PETRI_TRANSITIONS=431} [2023-11-26 12:04:38,133 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -11 predicate places. [2023-11-26 12:04:38,133 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 431 transitions, 919 flow [2023-11-26 12:04:38,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.6666666666667) internal successors, (1373), 3 states have internal predecessors, (1373), 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) [2023-11-26 12:04:38,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:38,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:38,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 12:04:38,135 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:38,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:38,135 INFO L85 PathProgramCache]: Analyzing trace with hash 928899107, now seen corresponding path program 1 times [2023-11-26 12:04:38,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:38,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858553725] [2023-11-26 12:04:38,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:38,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:38,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:38,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858553725] [2023-11-26 12:04:38,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858553725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:38,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:38,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:38,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467169790] [2023-11-26 12:04:38,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:38,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:38,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:38,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:38,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:38,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 484 [2023-11-26 12:04:38,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 431 transitions, 919 flow. Second operand has 3 states, 3 states have (on average 457.6666666666667) internal successors, (1373), 3 states have internal predecessors, (1373), 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) [2023-11-26 12:04:38,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:38,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 484 [2023-11-26 12:04:38,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:38,781 INFO L124 PetriNetUnfolderBase]: 75/1995 cut-off events. [2023-11-26 12:04:38,781 INFO L125 PetriNetUnfolderBase]: For 23/27 co-relation queries the response was YES. [2023-11-26 12:04:38,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2151 conditions, 1995 events. 75/1995 cut-off events. For 23/27 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 12636 event pairs, 10 based on Foata normal form. 0/1711 useless extension candidates. Maximal degree in co-relation 1835. Up to 90 conditions per place. [2023-11-26 12:04:38,827 INFO L140 encePairwiseOnDemand]: 480/484 looper letters, 13 selfloop transitions, 2 changer transitions 0/433 dead transitions. [2023-11-26 12:04:38,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 433 transitions, 955 flow [2023-11-26 12:04:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:38,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2023-11-26 12:04:38,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9538567493112947 [2023-11-26 12:04:38,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2023-11-26 12:04:38,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2023-11-26 12:04:38,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:38,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2023-11-26 12:04:38,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 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) [2023-11-26 12:04:38,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:38,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:38,847 INFO L175 Difference]: Start difference. First operand has 438 places, 431 transitions, 919 flow. Second operand 3 states and 1385 transitions. [2023-11-26 12:04:38,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 433 transitions, 955 flow [2023-11-26 12:04:38,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 433 transitions, 955 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:04:38,861 INFO L231 Difference]: Finished difference. Result has 439 places, 431 transitions, 929 flow [2023-11-26 12:04:38,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=929, PETRI_PLACES=439, PETRI_TRANSITIONS=431} [2023-11-26 12:04:38,864 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -10 predicate places. [2023-11-26 12:04:38,865 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 431 transitions, 929 flow [2023-11-26 12:04:38,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.6666666666667) internal successors, (1373), 3 states have internal predecessors, (1373), 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) [2023-11-26 12:04:38,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:38,866 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:38,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 12:04:38,866 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:38,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:38,867 INFO L85 PathProgramCache]: Analyzing trace with hash -227751778, now seen corresponding path program 1 times [2023-11-26 12:04:38,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:38,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582035367] [2023-11-26 12:04:38,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:38,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:38,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:38,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582035367] [2023-11-26 12:04:38,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582035367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:38,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:38,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:38,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602173869] [2023-11-26 12:04:38,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:38,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:38,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:38,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:38,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:38,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2023-11-26 12:04:38,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 431 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 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) [2023-11-26 12:04:38,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:38,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2023-11-26 12:04:38,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:39,611 INFO L124 PetriNetUnfolderBase]: 163/1817 cut-off events. [2023-11-26 12:04:39,611 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-26 12:04:39,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2170 conditions, 1817 events. 163/1817 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 12866 event pairs, 60 based on Foata normal form. 0/1559 useless extension candidates. Maximal degree in co-relation 1804. Up to 239 conditions per place. [2023-11-26 12:04:39,656 INFO L140 encePairwiseOnDemand]: 478/484 looper letters, 17 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2023-11-26 12:04:39,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 431 transitions, 969 flow [2023-11-26 12:04:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:39,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:39,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1373 transitions. [2023-11-26 12:04:39,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9455922865013774 [2023-11-26 12:04:39,662 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1373 transitions. [2023-11-26 12:04:39,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1373 transitions. [2023-11-26 12:04:39,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:39,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1373 transitions. [2023-11-26 12:04:39,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.6666666666667) internal successors, (1373), 3 states have internal predecessors, (1373), 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) [2023-11-26 12:04:39,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:39,673 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:39,673 INFO L175 Difference]: Start difference. First operand has 439 places, 431 transitions, 929 flow. Second operand 3 states and 1373 transitions. [2023-11-26 12:04:39,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 431 transitions, 969 flow [2023-11-26 12:04:39,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 431 transitions, 969 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:04:39,686 INFO L231 Difference]: Finished difference. Result has 438 places, 429 transitions, 935 flow [2023-11-26 12:04:39,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=935, PETRI_PLACES=438, PETRI_TRANSITIONS=429} [2023-11-26 12:04:39,687 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -11 predicate places. [2023-11-26 12:04:39,687 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 429 transitions, 935 flow [2023-11-26 12:04:39,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 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) [2023-11-26 12:04:39,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:39,688 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:39,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 12:04:39,689 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:39,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:39,689 INFO L85 PathProgramCache]: Analyzing trace with hash 173910080, now seen corresponding path program 1 times [2023-11-26 12:04:39,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:39,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715906104] [2023-11-26 12:04:39,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:39,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:39,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:39,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:39,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715906104] [2023-11-26 12:04:39,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715906104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:39,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:39,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:39,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747287884] [2023-11-26 12:04:39,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:39,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:39,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:39,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:39,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:39,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2023-11-26 12:04:39,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 429 transitions, 935 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 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) [2023-11-26 12:04:39,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:39,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2023-11-26 12:04:39,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:40,342 INFO L124 PetriNetUnfolderBase]: 122/1660 cut-off events. [2023-11-26 12:04:40,342 INFO L125 PetriNetUnfolderBase]: For 23/47 co-relation queries the response was YES. [2023-11-26 12:04:40,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 1660 events. 122/1660 cut-off events. For 23/47 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 10560 event pairs, 52 based on Foata normal form. 3/1451 useless extension candidates. Maximal degree in co-relation 1751. Up to 191 conditions per place. [2023-11-26 12:04:40,376 INFO L140 encePairwiseOnDemand]: 478/484 looper letters, 17 selfloop transitions, 2 changer transitions 0/429 dead transitions. [2023-11-26 12:04:40,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 429 transitions, 975 flow [2023-11-26 12:04:40,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:40,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:40,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1373 transitions. [2023-11-26 12:04:40,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9455922865013774 [2023-11-26 12:04:40,382 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1373 transitions. [2023-11-26 12:04:40,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1373 transitions. [2023-11-26 12:04:40,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:40,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1373 transitions. [2023-11-26 12:04:40,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.6666666666667) internal successors, (1373), 3 states have internal predecessors, (1373), 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) [2023-11-26 12:04:40,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:40,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:40,392 INFO L175 Difference]: Start difference. First operand has 438 places, 429 transitions, 935 flow. Second operand 3 states and 1373 transitions. [2023-11-26 12:04:40,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 429 transitions, 975 flow [2023-11-26 12:04:40,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 429 transitions, 975 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:04:40,403 INFO L231 Difference]: Finished difference. Result has 437 places, 427 transitions, 941 flow [2023-11-26 12:04:40,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=941, PETRI_PLACES=437, PETRI_TRANSITIONS=427} [2023-11-26 12:04:40,406 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -12 predicate places. [2023-11-26 12:04:40,406 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 427 transitions, 941 flow [2023-11-26 12:04:40,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 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) [2023-11-26 12:04:40,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:40,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:40,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 12:04:40,408 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:40,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:40,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1232380585, now seen corresponding path program 1 times [2023-11-26 12:04:40,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:40,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503893795] [2023-11-26 12:04:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:40,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:40,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:40,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503893795] [2023-11-26 12:04:40,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503893795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:40,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:40,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:40,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794985287] [2023-11-26 12:04:40,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:40,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:40,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:40,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:40,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:40,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 484 [2023-11-26 12:04:40,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 427 transitions, 941 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 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) [2023-11-26 12:04:40,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:40,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 484 [2023-11-26 12:04:40,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:40,917 INFO L124 PetriNetUnfolderBase]: 45/1295 cut-off events. [2023-11-26 12:04:40,917 INFO L125 PetriNetUnfolderBase]: For 7/28 co-relation queries the response was YES. [2023-11-26 12:04:40,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1471 conditions, 1295 events. 45/1295 cut-off events. For 7/28 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6998 event pairs, 4 based on Foata normal form. 4/1170 useless extension candidates. Maximal degree in co-relation 1153. Up to 26 conditions per place. [2023-11-26 12:04:40,980 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 11 selfloop transitions, 2 changer transitions 0/428 dead transitions. [2023-11-26 12:04:40,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 428 transitions, 971 flow [2023-11-26 12:04:40,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:40,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2023-11-26 12:04:40,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9538567493112947 [2023-11-26 12:04:40,987 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2023-11-26 12:04:40,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2023-11-26 12:04:40,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:40,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2023-11-26 12:04:40,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 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) [2023-11-26 12:04:40,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:40,997 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:40,997 INFO L175 Difference]: Start difference. First operand has 437 places, 427 transitions, 941 flow. Second operand 3 states and 1385 transitions. [2023-11-26 12:04:40,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 428 transitions, 971 flow [2023-11-26 12:04:41,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 428 transitions, 971 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:04:41,011 INFO L231 Difference]: Finished difference. Result has 438 places, 426 transitions, 943 flow [2023-11-26 12:04:41,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=943, PETRI_PLACES=438, PETRI_TRANSITIONS=426} [2023-11-26 12:04:41,012 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -11 predicate places. [2023-11-26 12:04:41,012 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 426 transitions, 943 flow [2023-11-26 12:04:41,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 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) [2023-11-26 12:04:41,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:41,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:41,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 12:04:41,014 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:41,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:41,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1384829909, now seen corresponding path program 1 times [2023-11-26 12:04:41,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:41,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10638339] [2023-11-26 12:04:41,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:41,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:41,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:41,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10638339] [2023-11-26 12:04:41,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10638339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:41,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:41,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:41,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096630050] [2023-11-26 12:04:41,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:41,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:41,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:41,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:41,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:41,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2023-11-26 12:04:41,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 426 transitions, 943 flow. Second operand has 3 states, 3 states have (on average 451.6666666666667) internal successors, (1355), 3 states have internal predecessors, (1355), 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) [2023-11-26 12:04:41,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:41,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2023-11-26 12:04:41,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:41,681 INFO L124 PetriNetUnfolderBase]: 231/2038 cut-off events. [2023-11-26 12:04:41,681 INFO L125 PetriNetUnfolderBase]: For 51/53 co-relation queries the response was YES. [2023-11-26 12:04:41,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2552 conditions, 2038 events. 231/2038 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 13430 event pairs, 76 based on Foata normal form. 0/1839 useless extension candidates. Maximal degree in co-relation 2275. Up to 364 conditions per place. [2023-11-26 12:04:41,726 INFO L140 encePairwiseOnDemand]: 478/484 looper letters, 17 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2023-11-26 12:04:41,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 426 transitions, 983 flow [2023-11-26 12:04:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:41,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1373 transitions. [2023-11-26 12:04:41,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9455922865013774 [2023-11-26 12:04:41,732 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1373 transitions. [2023-11-26 12:04:41,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1373 transitions. [2023-11-26 12:04:41,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:41,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1373 transitions. [2023-11-26 12:04:41,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.6666666666667) internal successors, (1373), 3 states have internal predecessors, (1373), 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) [2023-11-26 12:04:41,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:41,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:41,743 INFO L175 Difference]: Start difference. First operand has 438 places, 426 transitions, 943 flow. Second operand 3 states and 1373 transitions. [2023-11-26 12:04:41,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 426 transitions, 983 flow [2023-11-26 12:04:41,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 426 transitions, 979 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:41,756 INFO L231 Difference]: Finished difference. Result has 435 places, 424 transitions, 945 flow [2023-11-26 12:04:41,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=435, PETRI_TRANSITIONS=424} [2023-11-26 12:04:41,759 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -14 predicate places. [2023-11-26 12:04:41,759 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 424 transitions, 945 flow [2023-11-26 12:04:41,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.6666666666667) internal successors, (1355), 3 states have internal predecessors, (1355), 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) [2023-11-26 12:04:41,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:41,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:41,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 12:04:41,760 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:41,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:41,761 INFO L85 PathProgramCache]: Analyzing trace with hash 395730366, now seen corresponding path program 1 times [2023-11-26 12:04:41,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:41,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866609062] [2023-11-26 12:04:41,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:41,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:41,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:41,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:41,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866609062] [2023-11-26 12:04:41,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866609062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:41,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:41,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:41,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432942401] [2023-11-26 12:04:41,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:41,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:41,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:41,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:41,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:41,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 484 [2023-11-26 12:04:41,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 424 transitions, 945 flow. Second operand has 3 states, 3 states have (on average 457.6666666666667) internal successors, (1373), 3 states have internal predecessors, (1373), 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) [2023-11-26 12:04:41,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:41,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 484 [2023-11-26 12:04:41,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:42,399 INFO L124 PetriNetUnfolderBase]: 81/1663 cut-off events. [2023-11-26 12:04:42,400 INFO L125 PetriNetUnfolderBase]: For 19/34 co-relation queries the response was YES. [2023-11-26 12:04:42,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1974 conditions, 1663 events. 81/1663 cut-off events. For 19/34 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10105 event pairs, 14 based on Foata normal form. 2/1544 useless extension candidates. Maximal degree in co-relation 1499. Up to 53 conditions per place. [2023-11-26 12:04:42,440 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 12 selfloop transitions, 2 changer transitions 0/425 dead transitions. [2023-11-26 12:04:42,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 425 transitions, 977 flow [2023-11-26 12:04:42,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:42,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:42,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1383 transitions. [2023-11-26 12:04:42,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9524793388429752 [2023-11-26 12:04:42,447 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1383 transitions. [2023-11-26 12:04:42,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1383 transitions. [2023-11-26 12:04:42,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:42,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1383 transitions. [2023-11-26 12:04:42,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2023-11-26 12:04:42,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:42,464 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:42,464 INFO L175 Difference]: Start difference. First operand has 435 places, 424 transitions, 945 flow. Second operand 3 states and 1383 transitions. [2023-11-26 12:04:42,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 425 transitions, 977 flow [2023-11-26 12:04:42,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 425 transitions, 977 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:04:42,478 INFO L231 Difference]: Finished difference. Result has 436 places, 423 transitions, 947 flow [2023-11-26 12:04:42,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=947, PETRI_PLACES=436, PETRI_TRANSITIONS=423} [2023-11-26 12:04:42,479 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -13 predicate places. [2023-11-26 12:04:42,479 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 423 transitions, 947 flow [2023-11-26 12:04:42,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.6666666666667) internal successors, (1373), 3 states have internal predecessors, (1373), 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) [2023-11-26 12:04:42,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:42,481 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:42,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 12:04:42,481 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:42,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:42,482 INFO L85 PathProgramCache]: Analyzing trace with hash -911259020, now seen corresponding path program 1 times [2023-11-26 12:04:42,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:42,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878548829] [2023-11-26 12:04:42,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:42,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:42,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:42,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:42,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878548829] [2023-11-26 12:04:42,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878548829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:42,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:42,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:42,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782983333] [2023-11-26 12:04:42,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:42,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:42,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:42,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:42,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:42,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 484 [2023-11-26 12:04:42,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 423 transitions, 947 flow. Second operand has 3 states, 3 states have (on average 458.0) internal successors, (1374), 3 states have internal predecessors, (1374), 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) [2023-11-26 12:04:42,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:42,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 484 [2023-11-26 12:04:42,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:43,080 INFO L124 PetriNetUnfolderBase]: 65/1316 cut-off events. [2023-11-26 12:04:43,080 INFO L125 PetriNetUnfolderBase]: For 27/36 co-relation queries the response was YES. [2023-11-26 12:04:43,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 1316 events. 65/1316 cut-off events. For 27/36 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 6814 event pairs, 10 based on Foata normal form. 1/1231 useless extension candidates. Maximal degree in co-relation 1467. Up to 63 conditions per place. [2023-11-26 12:04:43,110 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 12 selfloop transitions, 2 changer transitions 0/424 dead transitions. [2023-11-26 12:04:43,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 424 transitions, 979 flow [2023-11-26 12:04:43,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:43,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1383 transitions. [2023-11-26 12:04:43,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9524793388429752 [2023-11-26 12:04:43,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1383 transitions. [2023-11-26 12:04:43,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1383 transitions. [2023-11-26 12:04:43,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:43,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1383 transitions. [2023-11-26 12:04:43,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2023-11-26 12:04:43,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:43,128 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:43,128 INFO L175 Difference]: Start difference. First operand has 436 places, 423 transitions, 947 flow. Second operand 3 states and 1383 transitions. [2023-11-26 12:04:43,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 424 transitions, 979 flow [2023-11-26 12:04:43,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 424 transitions, 975 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:43,143 INFO L231 Difference]: Finished difference. Result has 435 places, 422 transitions, 945 flow [2023-11-26 12:04:43,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=941, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=435, PETRI_TRANSITIONS=422} [2023-11-26 12:04:43,145 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -14 predicate places. [2023-11-26 12:04:43,145 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 422 transitions, 945 flow [2023-11-26 12:04:43,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.0) internal successors, (1374), 3 states have internal predecessors, (1374), 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) [2023-11-26 12:04:43,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:43,146 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:43,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 12:04:43,147 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:43,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:43,148 INFO L85 PathProgramCache]: Analyzing trace with hash -759815278, now seen corresponding path program 1 times [2023-11-26 12:04:43,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:43,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765092254] [2023-11-26 12:04:43,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:43,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:44,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:44,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:44,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765092254] [2023-11-26 12:04:44,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765092254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:44,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:44,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:04:44,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250988211] [2023-11-26 12:04:44,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:44,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:04:44,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:44,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:04:44,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:04:44,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 484 [2023-11-26 12:04:44,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 422 transitions, 945 flow. Second operand has 6 states, 6 states have (on average 454.8333333333333) internal successors, (2729), 6 states have internal predecessors, (2729), 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) [2023-11-26 12:04:44,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:44,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 484 [2023-11-26 12:04:44,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:44,926 INFO L124 PetriNetUnfolderBase]: 45/1218 cut-off events. [2023-11-26 12:04:44,926 INFO L125 PetriNetUnfolderBase]: For 7/35 co-relation queries the response was YES. [2023-11-26 12:04:44,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1439 conditions, 1218 events. 45/1218 cut-off events. For 7/35 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 6182 event pairs, 0 based on Foata normal form. 16/1163 useless extension candidates. Maximal degree in co-relation 1300. Up to 30 conditions per place. [2023-11-26 12:04:44,956 INFO L140 encePairwiseOnDemand]: 479/484 looper letters, 9 selfloop transitions, 4 changer transitions 0/421 dead transitions. [2023-11-26 12:04:44,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 421 transitions, 969 flow [2023-11-26 12:04:44,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:04:44,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:04:44,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2732 transitions. [2023-11-26 12:04:44,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.940771349862259 [2023-11-26 12:04:44,966 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2732 transitions. [2023-11-26 12:04:44,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2732 transitions. [2023-11-26 12:04:44,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:44,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2732 transitions. [2023-11-26 12:04:44,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 455.3333333333333) internal successors, (2732), 6 states have internal predecessors, (2732), 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) [2023-11-26 12:04:44,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 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) [2023-11-26 12:04:44,983 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 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) [2023-11-26 12:04:44,983 INFO L175 Difference]: Start difference. First operand has 435 places, 422 transitions, 945 flow. Second operand 6 states and 2732 transitions. [2023-11-26 12:04:44,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 421 transitions, 969 flow [2023-11-26 12:04:44,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 421 transitions, 965 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:04:44,996 INFO L231 Difference]: Finished difference. Result has 437 places, 421 transitions, 947 flow [2023-11-26 12:04:44,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=947, PETRI_PLACES=437, PETRI_TRANSITIONS=421} [2023-11-26 12:04:44,998 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -12 predicate places. [2023-11-26 12:04:44,998 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 421 transitions, 947 flow [2023-11-26 12:04:44,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 454.8333333333333) internal successors, (2729), 6 states have internal predecessors, (2729), 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) [2023-11-26 12:04:44,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:45,000 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:45,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 12:04:45,000 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:45,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1005626277, now seen corresponding path program 1 times [2023-11-26 12:04:45,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:45,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125044055] [2023-11-26 12:04:45,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:45,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:46,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:46,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:46,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125044055] [2023-11-26 12:04:46,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125044055] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:46,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:46,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:04:46,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286345301] [2023-11-26 12:04:46,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:46,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:04:46,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:46,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:04:46,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:04:46,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 484 [2023-11-26 12:04:46,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 421 transitions, 947 flow. Second operand has 6 states, 6 states have (on average 455.0) internal successors, (2730), 6 states have internal predecessors, (2730), 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) [2023-11-26 12:04:46,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:46,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 484 [2023-11-26 12:04:46,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:46,564 INFO L124 PetriNetUnfolderBase]: 45/1215 cut-off events. [2023-11-26 12:04:46,564 INFO L125 PetriNetUnfolderBase]: For 7/20 co-relation queries the response was YES. [2023-11-26 12:04:46,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 1215 events. 45/1215 cut-off events. For 7/20 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 6168 event pairs, 0 based on Foata normal form. 4/1151 useless extension candidates. Maximal degree in co-relation 1312. Up to 30 conditions per place. [2023-11-26 12:04:46,585 INFO L140 encePairwiseOnDemand]: 479/484 looper letters, 9 selfloop transitions, 4 changer transitions 0/420 dead transitions. [2023-11-26 12:04:46,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 420 transitions, 971 flow [2023-11-26 12:04:46,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:04:46,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:04:46,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2732 transitions. [2023-11-26 12:04:46,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.940771349862259 [2023-11-26 12:04:46,593 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2732 transitions. [2023-11-26 12:04:46,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2732 transitions. [2023-11-26 12:04:46,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:46,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2732 transitions. [2023-11-26 12:04:46,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 455.3333333333333) internal successors, (2732), 6 states have internal predecessors, (2732), 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) [2023-11-26 12:04:46,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 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) [2023-11-26 12:04:46,609 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 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) [2023-11-26 12:04:46,609 INFO L175 Difference]: Start difference. First operand has 437 places, 421 transitions, 947 flow. Second operand 6 states and 2732 transitions. [2023-11-26 12:04:46,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 420 transitions, 971 flow [2023-11-26 12:04:46,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 420 transitions, 964 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 12:04:46,620 INFO L231 Difference]: Finished difference. Result has 437 places, 420 transitions, 946 flow [2023-11-26 12:04:46,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=946, PETRI_PLACES=437, PETRI_TRANSITIONS=420} [2023-11-26 12:04:46,621 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -12 predicate places. [2023-11-26 12:04:46,622 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 420 transitions, 946 flow [2023-11-26 12:04:46,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 455.0) internal successors, (2730), 6 states have internal predecessors, (2730), 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) [2023-11-26 12:04:46,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:46,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:46,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-26 12:04:46,623 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:46,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:46,624 INFO L85 PathProgramCache]: Analyzing trace with hash -753260607, now seen corresponding path program 1 times [2023-11-26 12:04:46,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:46,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537099078] [2023-11-26 12:04:46,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:46,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:46,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:46,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537099078] [2023-11-26 12:04:46,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537099078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:46,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:46,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:46,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026428109] [2023-11-26 12:04:46,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:46,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:46,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:46,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:46,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:46,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 484 [2023-11-26 12:04:46,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 420 transitions, 946 flow. Second operand has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 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) [2023-11-26 12:04:46,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:46,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 484 [2023-11-26 12:04:46,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:47,122 INFO L124 PetriNetUnfolderBase]: 49/1314 cut-off events. [2023-11-26 12:04:47,122 INFO L125 PetriNetUnfolderBase]: For 7/16 co-relation queries the response was YES. [2023-11-26 12:04:47,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1525 conditions, 1314 events. 49/1314 cut-off events. For 7/16 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 6996 event pairs, 2 based on Foata normal form. 0/1240 useless extension candidates. Maximal degree in co-relation 1460. Up to 30 conditions per place. [2023-11-26 12:04:47,152 INFO L140 encePairwiseOnDemand]: 482/484 looper letters, 8 selfloop transitions, 1 changer transitions 0/419 dead transitions. [2023-11-26 12:04:47,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 419 transitions, 962 flow [2023-11-26 12:04:47,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:47,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:47,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1387 transitions. [2023-11-26 12:04:47,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9552341597796143 [2023-11-26 12:04:47,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1387 transitions. [2023-11-26 12:04:47,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1387 transitions. [2023-11-26 12:04:47,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:47,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1387 transitions. [2023-11-26 12:04:47,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 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) [2023-11-26 12:04:47,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:47,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:47,167 INFO L175 Difference]: Start difference. First operand has 437 places, 420 transitions, 946 flow. Second operand 3 states and 1387 transitions. [2023-11-26 12:04:47,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 419 transitions, 962 flow [2023-11-26 12:04:47,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 419 transitions, 955 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 12:04:47,179 INFO L231 Difference]: Finished difference. Result has 434 places, 419 transitions, 939 flow [2023-11-26 12:04:47,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=939, PETRI_PLACES=434, PETRI_TRANSITIONS=419} [2023-11-26 12:04:47,181 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -15 predicate places. [2023-11-26 12:04:47,181 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 419 transitions, 939 flow [2023-11-26 12:04:47,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 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) [2023-11-26 12:04:47,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:47,183 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:47,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-26 12:04:47,183 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:47,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:47,184 INFO L85 PathProgramCache]: Analyzing trace with hash -670039692, now seen corresponding path program 1 times [2023-11-26 12:04:47,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:47,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192516313] [2023-11-26 12:04:47,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:47,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:47,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:47,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:47,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192516313] [2023-11-26 12:04:47,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192516313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:47,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:47,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:47,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851374312] [2023-11-26 12:04:47,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:47,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:47,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:47,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:47,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:47,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 484 [2023-11-26 12:04:47,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 419 transitions, 939 flow. Second operand has 3 states, 3 states have (on average 459.0) internal successors, (1377), 3 states have internal predecessors, (1377), 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) [2023-11-26 12:04:47,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:47,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 484 [2023-11-26 12:04:47,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:47,772 INFO L124 PetriNetUnfolderBase]: 60/1582 cut-off events. [2023-11-26 12:04:47,772 INFO L125 PetriNetUnfolderBase]: For 10/16 co-relation queries the response was YES. [2023-11-26 12:04:47,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 1582 events. 60/1582 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 9266 event pairs, 7 based on Foata normal form. 0/1491 useless extension candidates. Maximal degree in co-relation 1796. Up to 36 conditions per place. [2023-11-26 12:04:47,803 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 10 selfloop transitions, 1 changer transitions 0/417 dead transitions. [2023-11-26 12:04:47,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 417 transitions, 957 flow [2023-11-26 12:04:47,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:47,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1381 transitions. [2023-11-26 12:04:47,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9511019283746557 [2023-11-26 12:04:47,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1381 transitions. [2023-11-26 12:04:47,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1381 transitions. [2023-11-26 12:04:47,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:47,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1381 transitions. [2023-11-26 12:04:47,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 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) [2023-11-26 12:04:47,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:47,816 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:47,816 INFO L175 Difference]: Start difference. First operand has 434 places, 419 transitions, 939 flow. Second operand 3 states and 1381 transitions. [2023-11-26 12:04:47,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 417 transitions, 957 flow [2023-11-26 12:04:47,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 417 transitions, 956 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:04:47,828 INFO L231 Difference]: Finished difference. Result has 433 places, 417 transitions, 936 flow [2023-11-26 12:04:47,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=936, PETRI_PLACES=433, PETRI_TRANSITIONS=417} [2023-11-26 12:04:47,831 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -16 predicate places. [2023-11-26 12:04:47,831 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 417 transitions, 936 flow [2023-11-26 12:04:47,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.0) internal successors, (1377), 3 states have internal predecessors, (1377), 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) [2023-11-26 12:04:47,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:47,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:47,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-26 12:04:47,833 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-26 12:04:47,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:47,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1598002968, now seen corresponding path program 1 times [2023-11-26 12:04:47,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:47,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448412314] [2023-11-26 12:04:47,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:47,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:47,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:47,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:47,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448412314] [2023-11-26 12:04:47,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448412314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:47,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:47,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:47,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905154648] [2023-11-26 12:04:47,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:47,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:47,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:47,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:47,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:47,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 484 [2023-11-26 12:04:47,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 417 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 459.0) internal successors, (1377), 3 states have internal predecessors, (1377), 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) [2023-11-26 12:04:47,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:47,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 484 [2023-11-26 12:04:47,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:48,322 INFO L124 PetriNetUnfolderBase]: 50/1255 cut-off events. [2023-11-26 12:04:48,323 INFO L125 PetriNetUnfolderBase]: For 12/18 co-relation queries the response was YES. [2023-11-26 12:04:48,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1470 conditions, 1255 events. 50/1255 cut-off events. For 12/18 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 6412 event pairs, 5 based on Foata normal form. 1/1187 useless extension candidates. Maximal degree in co-relation 1445. Up to 36 conditions per place. [2023-11-26 12:04:48,348 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 0 selfloop transitions, 0 changer transitions 415/415 dead transitions. [2023-11-26 12:04:48,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 415 transitions, 952 flow [2023-11-26 12:04:48,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:48,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:04:48,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1380 transitions. [2023-11-26 12:04:48,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9504132231404959 [2023-11-26 12:04:48,353 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1380 transitions. [2023-11-26 12:04:48,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1380 transitions. [2023-11-26 12:04:48,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:48,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1380 transitions. [2023-11-26 12:04:48,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.0) internal successors, (1380), 3 states have internal predecessors, (1380), 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) [2023-11-26 12:04:48,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:48,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2023-11-26 12:04:48,362 INFO L175 Difference]: Start difference. First operand has 433 places, 417 transitions, 936 flow. Second operand 3 states and 1380 transitions. [2023-11-26 12:04:48,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 415 transitions, 952 flow [2023-11-26 12:04:48,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 415 transitions, 951 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:04:48,370 INFO L231 Difference]: Finished difference. Result has 432 places, 0 transitions, 0 flow [2023-11-26 12:04:48,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=432, PETRI_TRANSITIONS=0} [2023-11-26 12:04:48,372 INFO L281 CegarLoopForPetriNet]: 449 programPoint places, -17 predicate places. [2023-11-26 12:04:48,372 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 0 transitions, 0 flow [2023-11-26 12:04:48,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.0) internal successors, (1377), 3 states have internal predecessors, (1377), 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) [2023-11-26 12:04:48,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (73 of 74 remaining) [2023-11-26 12:04:48,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (72 of 74 remaining) [2023-11-26 12:04:48,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (71 of 74 remaining) [2023-11-26 12:04:48,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (70 of 74 remaining) [2023-11-26 12:04:48,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (69 of 74 remaining) [2023-11-26 12:04:48,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (68 of 74 remaining) [2023-11-26 12:04:48,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (67 of 74 remaining) [2023-11-26 12:04:48,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (66 of 74 remaining) [2023-11-26 12:04:48,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (65 of 74 remaining) [2023-11-26 12:04:48,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (64 of 74 remaining) [2023-11-26 12:04:48,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (63 of 74 remaining) [2023-11-26 12:04:48,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (62 of 74 remaining) [2023-11-26 12:04:48,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (61 of 74 remaining) [2023-11-26 12:04:48,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (60 of 74 remaining) [2023-11-26 12:04:48,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (59 of 74 remaining) [2023-11-26 12:04:48,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (58 of 74 remaining) [2023-11-26 12:04:48,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (57 of 74 remaining) [2023-11-26 12:04:48,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (56 of 74 remaining) [2023-11-26 12:04:48,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (55 of 74 remaining) [2023-11-26 12:04:48,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (54 of 74 remaining) [2023-11-26 12:04:48,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (53 of 74 remaining) [2023-11-26 12:04:48,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (52 of 74 remaining) [2023-11-26 12:04:48,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (51 of 74 remaining) [2023-11-26 12:04:48,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (50 of 74 remaining) [2023-11-26 12:04:48,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (49 of 74 remaining) [2023-11-26 12:04:48,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (48 of 74 remaining) [2023-11-26 12:04:48,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (47 of 74 remaining) [2023-11-26 12:04:48,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (46 of 74 remaining) [2023-11-26 12:04:48,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (45 of 74 remaining) [2023-11-26 12:04:48,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (44 of 74 remaining) [2023-11-26 12:04:48,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (43 of 74 remaining) [2023-11-26 12:04:48,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 74 remaining) [2023-11-26 12:04:48,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (41 of 74 remaining) [2023-11-26 12:04:48,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (40 of 74 remaining) [2023-11-26 12:04:48,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (39 of 74 remaining) [2023-11-26 12:04:48,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (38 of 74 remaining) [2023-11-26 12:04:48,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (37 of 74 remaining) [2023-11-26 12:04:48,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (36 of 74 remaining) [2023-11-26 12:04:48,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (35 of 74 remaining) [2023-11-26 12:04:48,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (34 of 74 remaining) [2023-11-26 12:04:48,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (33 of 74 remaining) [2023-11-26 12:04:48,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (32 of 74 remaining) [2023-11-26 12:04:48,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (31 of 74 remaining) [2023-11-26 12:04:48,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (30 of 74 remaining) [2023-11-26 12:04:48,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 74 remaining) [2023-11-26 12:04:48,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 74 remaining) [2023-11-26 12:04:48,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 74 remaining) [2023-11-26 12:04:48,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (26 of 74 remaining) [2023-11-26 12:04:48,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (25 of 74 remaining) [2023-11-26 12:04:48,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (24 of 74 remaining) [2023-11-26 12:04:48,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (23 of 74 remaining) [2023-11-26 12:04:48,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (22 of 74 remaining) [2023-11-26 12:04:48,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (21 of 74 remaining) [2023-11-26 12:04:48,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (20 of 74 remaining) [2023-11-26 12:04:48,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (19 of 74 remaining) [2023-11-26 12:04:48,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (18 of 74 remaining) [2023-11-26 12:04:48,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 74 remaining) [2023-11-26 12:04:48,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 74 remaining) [2023-11-26 12:04:48,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 74 remaining) [2023-11-26 12:04:48,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (14 of 74 remaining) [2023-11-26 12:04:48,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (13 of 74 remaining) [2023-11-26 12:04:48,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 74 remaining) [2023-11-26 12:04:48,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 74 remaining) [2023-11-26 12:04:48,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (10 of 74 remaining) [2023-11-26 12:04:48,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (9 of 74 remaining) [2023-11-26 12:04:48,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (8 of 74 remaining) [2023-11-26 12:04:48,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (7 of 74 remaining) [2023-11-26 12:04:48,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (6 of 74 remaining) [2023-11-26 12:04:48,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (5 of 74 remaining) [2023-11-26 12:04:48,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (4 of 74 remaining) [2023-11-26 12:04:48,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (3 of 74 remaining) [2023-11-26 12:04:48,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (2 of 74 remaining) [2023-11-26 12:04:48,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (1 of 74 remaining) [2023-11-26 12:04:48,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (0 of 74 remaining) [2023-11-26 12:04:48,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-26 12:04:48,391 INFO L445 BasicCegarLoop]: Path program 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] [2023-11-26 12:04:48,399 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 12:04:48,399 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:04:48,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:04:48 BasicIcfg [2023-11-26 12:04:48,410 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:04:48,410 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:04:48,410 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:04:48,411 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:04:48,411 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:29" (3/4) ... [2023-11-26 12:04:48,414 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:04:48,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 12:04:48,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 12:04:48,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-26 12:04:48,429 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-26 12:04:48,429 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 12:04:48,430 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 12:04:48,431 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:04:48,571 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:04:48,572 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:04:48,573 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:04:48,574 INFO L158 Benchmark]: Toolchain (without parser) took 21109.15ms. Allocated memory was 155.2MB in the beginning and 530.6MB in the end (delta: 375.4MB). Free memory was 110.4MB in the beginning and 204.7MB in the end (delta: -94.3MB). Peak memory consumption was 281.7MB. Max. memory is 16.1GB. [2023-11-26 12:04:48,574 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory was 127.6MB in the beginning and 127.4MB in the end (delta: 218.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:48,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.10ms. Allocated memory is still 155.2MB. Free memory was 110.1MB in the beginning and 97.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:04:48,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.58ms. Allocated memory is still 155.2MB. Free memory was 97.5MB in the beginning and 94.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:48,576 INFO L158 Benchmark]: Boogie Preprocessor took 49.17ms. Allocated memory is still 155.2MB. Free memory was 94.5MB in the beginning and 92.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:48,576 INFO L158 Benchmark]: RCFGBuilder took 1097.02ms. Allocated memory is still 155.2MB. Free memory was 92.2MB in the beginning and 60.1MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-26 12:04:48,577 INFO L158 Benchmark]: TraceAbstraction took 19375.24ms. Allocated memory was 155.2MB in the beginning and 530.6MB in the end (delta: 375.4MB). Free memory was 59.5MB in the beginning and 211.0MB in the end (delta: -151.5MB). Peak memory consumption was 225.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:48,577 INFO L158 Benchmark]: Witness Printer took 163.14ms. Allocated memory is still 530.6MB. Free memory was 211.0MB in the beginning and 204.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 12:04:48,586 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory was 127.6MB in the beginning and 127.4MB in the end (delta: 218.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.10ms. Allocated memory is still 155.2MB. Free memory was 110.1MB in the beginning and 97.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.58ms. Allocated memory is still 155.2MB. Free memory was 97.5MB in the beginning and 94.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.17ms. Allocated memory is still 155.2MB. Free memory was 94.5MB in the beginning and 92.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1097.02ms. Allocated memory is still 155.2MB. Free memory was 92.2MB in the beginning and 60.1MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 19375.24ms. Allocated memory was 155.2MB in the beginning and 530.6MB in the end (delta: 375.4MB). Free memory was 59.5MB in the beginning and 211.0MB in the end (delta: -151.5MB). Peak memory consumption was 225.1MB. Max. memory is 16.1GB. * Witness Printer took 163.14ms. Allocated memory is still 530.6MB. Free memory was 211.0MB in the beginning and 204.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: 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: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: 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: 61]: 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: 61]: 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: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: 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 7 procedures, 740 locations, 74 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.1s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 725 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 274 mSDsluCounter, 155 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 191 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1111 IncrementalHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 191 mSolverCounterUnsat, 155 mSDtfsCounter, 1111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=947occurred in iteration=21, InterpolantAutomatonStates: 90, 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: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 3927 NumberOfCodeBlocks, 3927 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3900 ConstructedInterpolants, 0 QuantifiedInterpolants, 4191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 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 44 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 12:04:48,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853ab565-c2ab-4ef2-9e65-bba414406285/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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