./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:47:21,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:47:21,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:47:21,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:47:21,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:47:21,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:47:21,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:47:21,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:47:21,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:47:21,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:47:21,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:47:21,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:47:21,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:47:21,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:47:21,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:47:21,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:47:21,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:47:21,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:47:21,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:47:21,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:47:21,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:47:21,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:47:21,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:47:21,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:47:21,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:47:21,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:47:21,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:47:21,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:47:21,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:47:21,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:47:21,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:47:21,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:47:21,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:47:21,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:47:21,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:47:21,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:47:21,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:47:21,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:47:21,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:47:21,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:47:21,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:47:21,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:47:21,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:47:21,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:47:21,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:47:21,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:47:21,662 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:47:21,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:47:21,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:47:21,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:47:21,664 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:47:21,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:47:21,665 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:47:21,665 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:47:21,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:47:21,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:47:21,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:47:21,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:47:21,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:47:21,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:47:21,667 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:47:21,667 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:47:21,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:47:21,668 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:47:21,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:47:21,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:47:21,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:47:21,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:47:21,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:47:21,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:47:21,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:47:21,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:47:21,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:47:21,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:47:21,672 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:47:21,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:47:21,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:47:21,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2022-11-18 20:47:22,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:47:22,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:47:22,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:47:22,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:47:22,065 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:47:22,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-11-18 20:47:22,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/data/0c2233c72/2df3a8e2706041209fff434a4abacd9f/FLAGdfbbd2ff5 [2022-11-18 20:47:22,805 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:47:22,809 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-11-18 20:47:22,824 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/data/0c2233c72/2df3a8e2706041209fff434a4abacd9f/FLAGdfbbd2ff5 [2022-11-18 20:47:23,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/data/0c2233c72/2df3a8e2706041209fff434a4abacd9f [2022-11-18 20:47:23,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:47:23,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:47:23,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:47:23,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:47:23,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:47:23,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:23,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fdc7df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23, skipping insertion in model container [2022-11-18 20:47:23,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:23,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:47:23,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:47:23,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:47:23,764 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:47:23,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:47:23,953 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:47:23,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23 WrapperNode [2022-11-18 20:47:23,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:47:23,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:47:23,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:47:23,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:47:23,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:23,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:24,062 INFO L138 Inliner]: procedures = 368, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 232 [2022-11-18 20:47:24,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:47:24,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:47:24,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:47:24,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:47:24,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:24,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:24,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:24,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:24,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:24,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:24,158 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:24,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:24,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:47:24,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:47:24,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:47:24,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:47:24,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (1/1) ... [2022-11-18 20:47:24,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:47:24,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:47:24,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:47:24,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:47:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:47:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:47:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:47:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:47:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:47:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:47:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:47:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:47:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:47:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:47:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:47:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:47:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:47:24,266 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:47:24,466 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:47:24,468 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:47:25,101 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:47:25,121 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:47:25,121 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 20:47:25,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:47:25 BoogieIcfgContainer [2022-11-18 20:47:25,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:47:25,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:47:25,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:47:25,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:47:25,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:47:23" (1/3) ... [2022-11-18 20:47:25,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635f5ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:47:25, skipping insertion in model container [2022-11-18 20:47:25,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:23" (2/3) ... [2022-11-18 20:47:25,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635f5ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:47:25, skipping insertion in model container [2022-11-18 20:47:25,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:47:25" (3/3) ... [2022-11-18 20:47:25,137 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2022-11-18 20:47:25,146 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:47:25,157 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:47:25,157 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-18 20:47:25,157 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:47:25,278 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:47:25,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 269 transitions, 543 flow [2022-11-18 20:47:25,525 INFO L130 PetriNetUnfolder]: 6/268 cut-off events. [2022-11-18 20:47:25,525 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:47:25,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 268 events. 6/268 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 428 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2022-11-18 20:47:25,539 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 269 transitions, 543 flow [2022-11-18 20:47:25,555 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 266 places, 268 transitions, 539 flow [2022-11-18 20:47:25,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:47:25,580 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=LoopsAndPotentialCycles, 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;@61cc564f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:47:25,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-18 20:47:25,600 INFO L130 PetriNetUnfolder]: 3/74 cut-off events. [2022-11-18 20:47:25,600 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:47:25,601 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:25,601 INFO L209 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] [2022-11-18 20:47:25,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:47:25,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:25,607 INFO L85 PathProgramCache]: Analyzing trace with hash -41811968, now seen corresponding path program 1 times [2022-11-18 20:47:25,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:25,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663254190] [2022-11-18 20:47:25,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:25,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:26,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:26,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:26,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663254190] [2022-11-18 20:47:26,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663254190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:47:26,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:47:26,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:47:26,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784717450] [2022-11-18 20:47:26,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:47:26,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:47:26,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:26,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:47:26,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:47:26,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 269 [2022-11-18 20:47:26,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 268 transitions, 539 flow. Second operand has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 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) [2022-11-18 20:47:26,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:26,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 269 [2022-11-18 20:47:26,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:28,982 INFO L130 PetriNetUnfolder]: 2475/7972 cut-off events. [2022-11-18 20:47:28,982 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:47:28,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12946 conditions, 7972 events. 2475/7972 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 62573 event pairs, 1992 based on Foata normal form. 196/7307 useless extension candidates. Maximal degree in co-relation 12850. Up to 4684 conditions per place. [2022-11-18 20:47:29,026 INFO L137 encePairwiseOnDemand]: 229/269 looper letters, 164 selfloop transitions, 107 changer transitions 0/413 dead transitions. [2022-11-18 20:47:29,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 413 transitions, 1371 flow [2022-11-18 20:47:29,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:47:29,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:47:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1138 transitions. [2022-11-18 20:47:29,050 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7050805452292441 [2022-11-18 20:47:29,051 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1138 transitions. [2022-11-18 20:47:29,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1138 transitions. [2022-11-18 20:47:29,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:29,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1138 transitions. [2022-11-18 20:47:29,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 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) [2022-11-18 20:47:29,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 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) [2022-11-18 20:47:29,078 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 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) [2022-11-18 20:47:29,080 INFO L175 Difference]: Start difference. First operand has 266 places, 268 transitions, 539 flow. Second operand 6 states and 1138 transitions. [2022-11-18 20:47:29,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 413 transitions, 1371 flow [2022-11-18 20:47:29,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 413 transitions, 1370 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:47:29,100 INFO L231 Difference]: Finished difference. Result has 274 places, 365 transitions, 1220 flow [2022-11-18 20:47:29,102 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1220, PETRI_PLACES=274, PETRI_TRANSITIONS=365} [2022-11-18 20:47:29,109 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 8 predicate places. [2022-11-18 20:47:29,109 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 365 transitions, 1220 flow [2022-11-18 20:47:29,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 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) [2022-11-18 20:47:29,110 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:29,110 INFO L209 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] [2022-11-18 20:47:29,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:47:29,111 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:47:29,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:29,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2070844974, now seen corresponding path program 1 times [2022-11-18 20:47:29,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:29,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621918140] [2022-11-18 20:47:29,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:29,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:29,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:29,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:29,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621918140] [2022-11-18 20:47:29,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621918140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:47:29,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:47:29,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:47:29,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435857232] [2022-11-18 20:47:29,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:47:29,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:47:29,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:29,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:47:29,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:47:29,638 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 269 [2022-11-18 20:47:29,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 365 transitions, 1220 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2022-11-18 20:47:29,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:29,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 269 [2022-11-18 20:47:29,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:32,002 INFO L130 PetriNetUnfolder]: 2669/8636 cut-off events. [2022-11-18 20:47:32,002 INFO L131 PetriNetUnfolder]: For 1695/1697 co-relation queries the response was YES. [2022-11-18 20:47:32,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16546 conditions, 8636 events. 2669/8636 cut-off events. For 1695/1697 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 69042 event pairs, 1874 based on Foata normal form. 0/7768 useless extension candidates. Maximal degree in co-relation 16438. Up to 5042 conditions per place. [2022-11-18 20:47:32,063 INFO L137 encePairwiseOnDemand]: 232/269 looper letters, 263 selfloop transitions, 107 changer transitions 0/513 dead transitions. [2022-11-18 20:47:32,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 513 transitions, 2448 flow [2022-11-18 20:47:32,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:47:32,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:47:32,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1130 transitions. [2022-11-18 20:47:32,068 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7001239157372986 [2022-11-18 20:47:32,070 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1130 transitions. [2022-11-18 20:47:32,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1130 transitions. [2022-11-18 20:47:32,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:32,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1130 transitions. [2022-11-18 20:47:32,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 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) [2022-11-18 20:47:32,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 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) [2022-11-18 20:47:32,079 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 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) [2022-11-18 20:47:32,079 INFO L175 Difference]: Start difference. First operand has 274 places, 365 transitions, 1220 flow. Second operand 6 states and 1130 transitions. [2022-11-18 20:47:32,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 513 transitions, 2448 flow [2022-11-18 20:47:32,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 513 transitions, 2448 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:47:32,110 INFO L231 Difference]: Finished difference. Result has 283 places, 465 transitions, 2100 flow [2022-11-18 20:47:32,111 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1218, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2100, PETRI_PLACES=283, PETRI_TRANSITIONS=465} [2022-11-18 20:47:32,112 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 17 predicate places. [2022-11-18 20:47:32,112 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 465 transitions, 2100 flow [2022-11-18 20:47:32,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2022-11-18 20:47:32,113 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:32,113 INFO L209 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] [2022-11-18 20:47:32,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:47:32,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:47:32,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash 2131369800, now seen corresponding path program 1 times [2022-11-18 20:47:32,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:32,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092014992] [2022-11-18 20:47:32,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:32,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:32,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:32,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:32,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092014992] [2022-11-18 20:47:32,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092014992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:47:32,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:47:32,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:47:32,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655024667] [2022-11-18 20:47:32,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:47:32,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:47:32,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:32,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:47:32,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:47:32,205 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 269 [2022-11-18 20:47:32,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 465 transitions, 2100 flow. Second operand has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 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) [2022-11-18 20:47:32,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:32,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 269 [2022-11-18 20:47:32,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:33,361 INFO L130 PetriNetUnfolder]: 1071/4163 cut-off events. [2022-11-18 20:47:33,362 INFO L131 PetriNetUnfolder]: For 1148/1160 co-relation queries the response was YES. [2022-11-18 20:47:33,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8528 conditions, 4163 events. 1071/4163 cut-off events. For 1148/1160 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26643 event pairs, 96 based on Foata normal form. 0/3924 useless extension candidates. Maximal degree in co-relation 8341. Up to 1144 conditions per place. [2022-11-18 20:47:33,402 INFO L137 encePairwiseOnDemand]: 263/269 looper letters, 65 selfloop transitions, 4 changer transitions 0/496 dead transitions. [2022-11-18 20:47:33,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 496 transitions, 2300 flow [2022-11-18 20:47:33,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:47:33,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:47:33,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 755 transitions. [2022-11-18 20:47:33,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9355638166047088 [2022-11-18 20:47:33,406 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 755 transitions. [2022-11-18 20:47:33,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 755 transitions. [2022-11-18 20:47:33,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:33,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 755 transitions. [2022-11-18 20:47:33,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 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) [2022-11-18 20:47:33,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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) [2022-11-18 20:47:33,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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) [2022-11-18 20:47:33,412 INFO L175 Difference]: Start difference. First operand has 283 places, 465 transitions, 2100 flow. Second operand 3 states and 755 transitions. [2022-11-18 20:47:33,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 496 transitions, 2300 flow [2022-11-18 20:47:33,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 496 transitions, 2108 flow, removed 96 selfloop flow, removed 0 redundant places. [2022-11-18 20:47:33,440 INFO L231 Difference]: Finished difference. Result has 286 places, 467 transitions, 1932 flow [2022-11-18 20:47:33,441 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1908, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1932, PETRI_PLACES=286, PETRI_TRANSITIONS=467} [2022-11-18 20:47:33,443 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 20 predicate places. [2022-11-18 20:47:33,444 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 467 transitions, 1932 flow [2022-11-18 20:47:33,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 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) [2022-11-18 20:47:33,444 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:33,445 INFO L209 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] [2022-11-18 20:47:33,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:47:33,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:47:33,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:33,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1146894362, now seen corresponding path program 1 times [2022-11-18 20:47:33,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:33,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654949511] [2022-11-18 20:47:33,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:33,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:33,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:33,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654949511] [2022-11-18 20:47:33,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654949511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:47:33,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:47:33,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:47:33,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659882888] [2022-11-18 20:47:33,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:47:33,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:47:33,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:33,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:47:33,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:47:33,838 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 269 [2022-11-18 20:47:33,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 467 transitions, 1932 flow. Second operand has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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) [2022-11-18 20:47:33,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:33,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 269 [2022-11-18 20:47:33,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:38,450 INFO L130 PetriNetUnfolder]: 5581/16318 cut-off events. [2022-11-18 20:47:38,450 INFO L131 PetriNetUnfolder]: For 9465/9491 co-relation queries the response was YES. [2022-11-18 20:47:38,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37713 conditions, 16318 events. 5581/16318 cut-off events. For 9465/9491 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 130993 event pairs, 4152 based on Foata normal form. 0/14771 useless extension candidates. Maximal degree in co-relation 37497. Up to 11067 conditions per place. [2022-11-18 20:47:38,569 INFO L137 encePairwiseOnDemand]: 263/269 looper letters, 327 selfloop transitions, 5 changer transitions 0/466 dead transitions. [2022-11-18 20:47:38,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 466 transitions, 2594 flow [2022-11-18 20:47:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:47:38,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:47:38,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 929 transitions. [2022-11-18 20:47:38,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5755885997521685 [2022-11-18 20:47:38,572 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 929 transitions. [2022-11-18 20:47:38,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 929 transitions. [2022-11-18 20:47:38,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:38,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 929 transitions. [2022-11-18 20:47:38,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 154.83333333333334) internal successors, (929), 6 states have internal predecessors, (929), 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) [2022-11-18 20:47:38,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 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) [2022-11-18 20:47:38,584 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 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) [2022-11-18 20:47:38,585 INFO L175 Difference]: Start difference. First operand has 286 places, 467 transitions, 1932 flow. Second operand 6 states and 929 transitions. [2022-11-18 20:47:38,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 466 transitions, 2594 flow [2022-11-18 20:47:38,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 466 transitions, 2590 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:47:38,613 INFO L231 Difference]: Finished difference. Result has 289 places, 466 transitions, 1936 flow [2022-11-18 20:47:38,614 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1936, PETRI_PLACES=289, PETRI_TRANSITIONS=466} [2022-11-18 20:47:38,615 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 23 predicate places. [2022-11-18 20:47:38,615 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 466 transitions, 1936 flow [2022-11-18 20:47:38,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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) [2022-11-18 20:47:38,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:38,616 INFO L209 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] [2022-11-18 20:47:38,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:47:38,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:47:38,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:38,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1510380861, now seen corresponding path program 1 times [2022-11-18 20:47:38,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:38,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585957957] [2022-11-18 20:47:38,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:38,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:38,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:38,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:38,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585957957] [2022-11-18 20:47:38,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585957957] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:47:38,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822839963] [2022-11-18 20:47:38,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:38,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:47:38,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:47:38,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:47:38,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:47:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:38,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:47:38,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:47:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:39,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:47:39,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:39,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822839963] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:47:39,243 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:47:39,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:47:39,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985717553] [2022-11-18 20:47:39,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:47:39,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:47:39,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:39,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:47:39,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:47:39,248 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 269 [2022-11-18 20:47:39,250 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 466 transitions, 1936 flow. Second operand has 10 states, 10 states have (on average 231.0) internal successors, (2310), 10 states have internal predecessors, (2310), 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) [2022-11-18 20:47:39,250 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:39,250 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 269 [2022-11-18 20:47:39,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:40,381 INFO L130 PetriNetUnfolder]: 1071/4204 cut-off events. [2022-11-18 20:47:40,382 INFO L131 PetriNetUnfolder]: For 689/701 co-relation queries the response was YES. [2022-11-18 20:47:40,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8380 conditions, 4204 events. 1071/4204 cut-off events. For 689/701 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26423 event pairs, 96 based on Foata normal form. 2/3972 useless extension candidates. Maximal degree in co-relation 8117. Up to 900 conditions per place. [2022-11-18 20:47:40,414 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 68 selfloop transitions, 13 changer transitions 0/507 dead transitions. [2022-11-18 20:47:40,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 507 transitions, 2198 flow [2022-11-18 20:47:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:47:40,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:47:40,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2126 transitions. [2022-11-18 20:47:40,419 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8781495249896737 [2022-11-18 20:47:40,419 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2126 transitions. [2022-11-18 20:47:40,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2126 transitions. [2022-11-18 20:47:40,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:40,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2126 transitions. [2022-11-18 20:47:40,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 236.22222222222223) internal successors, (2126), 9 states have internal predecessors, (2126), 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) [2022-11-18 20:47:40,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 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) [2022-11-18 20:47:40,433 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 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) [2022-11-18 20:47:40,433 INFO L175 Difference]: Start difference. First operand has 289 places, 466 transitions, 1936 flow. Second operand 9 states and 2126 transitions. [2022-11-18 20:47:40,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 507 transitions, 2198 flow [2022-11-18 20:47:40,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 507 transitions, 2172 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:47:40,451 INFO L231 Difference]: Finished difference. Result has 295 places, 473 transitions, 1994 flow [2022-11-18 20:47:40,452 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1994, PETRI_PLACES=295, PETRI_TRANSITIONS=473} [2022-11-18 20:47:40,454 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 29 predicate places. [2022-11-18 20:47:40,455 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 473 transitions, 1994 flow [2022-11-18 20:47:40,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 231.0) internal successors, (2310), 10 states have internal predecessors, (2310), 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) [2022-11-18 20:47:40,456 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:40,457 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:47:40,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:47:40,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:47:40,666 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:47:40,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:40,667 INFO L85 PathProgramCache]: Analyzing trace with hash -139054691, now seen corresponding path program 2 times [2022-11-18 20:47:40,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:40,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229983658] [2022-11-18 20:47:40,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:40,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:41,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:41,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229983658] [2022-11-18 20:47:41,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229983658] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:47:41,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518610201] [2022-11-18 20:47:41,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:47:41,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:47:41,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:47:41,100 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:47:41,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:47:41,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:47:41,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:47:41,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 20:47:41,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:47:41,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:47:41,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:47:41,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 20:47:41,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:47:41,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:47:41,434 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:47:41,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-18 20:47:41,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:47:41,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:47:41,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:47:41,477 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:47:41,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-18 20:47:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-18 20:47:41,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:47:41,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518610201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:47:41,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:47:41,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-18 20:47:41,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142718123] [2022-11-18 20:47:41,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:47:41,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:47:41,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:41,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:47:41,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:47:41,518 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 269 [2022-11-18 20:47:41,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 473 transitions, 1994 flow. Second operand has 8 states, 8 states have (on average 151.375) internal successors, (1211), 8 states have internal predecessors, (1211), 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) [2022-11-18 20:47:41,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:41,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 269 [2022-11-18 20:47:41,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:46,999 INFO L130 PetriNetUnfolder]: 6471/18504 cut-off events. [2022-11-18 20:47:47,000 INFO L131 PetriNetUnfolder]: For 5156/5338 co-relation queries the response was YES. [2022-11-18 20:47:47,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41957 conditions, 18504 events. 6471/18504 cut-off events. For 5156/5338 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 152025 event pairs, 459 based on Foata normal form. 0/16832 useless extension candidates. Maximal degree in co-relation 41668. Up to 10982 conditions per place. [2022-11-18 20:47:47,103 INFO L137 encePairwiseOnDemand]: 222/269 looper letters, 563 selfloop transitions, 174 changer transitions 0/895 dead transitions. [2022-11-18 20:47:47,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 895 transitions, 4684 flow [2022-11-18 20:47:47,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:47:47,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:47:47,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1832 transitions. [2022-11-18 20:47:47,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7567121024370095 [2022-11-18 20:47:47,109 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1832 transitions. [2022-11-18 20:47:47,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1832 transitions. [2022-11-18 20:47:47,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:47,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1832 transitions. [2022-11-18 20:47:47,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.55555555555554) internal successors, (1832), 9 states have internal predecessors, (1832), 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) [2022-11-18 20:47:47,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 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) [2022-11-18 20:47:47,120 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 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) [2022-11-18 20:47:47,120 INFO L175 Difference]: Start difference. First operand has 295 places, 473 transitions, 1994 flow. Second operand 9 states and 1832 transitions. [2022-11-18 20:47:47,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 895 transitions, 4684 flow [2022-11-18 20:47:47,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 895 transitions, 4674 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-11-18 20:47:47,153 INFO L231 Difference]: Finished difference. Result has 307 places, 635 transitions, 3464 flow [2022-11-18 20:47:47,154 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1984, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3464, PETRI_PLACES=307, PETRI_TRANSITIONS=635} [2022-11-18 20:47:47,154 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 41 predicate places. [2022-11-18 20:47:47,155 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 635 transitions, 3464 flow [2022-11-18 20:47:47,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 151.375) internal successors, (1211), 8 states have internal predecessors, (1211), 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) [2022-11-18 20:47:47,156 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:47,156 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:47:47,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:47:47,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 20:47:47,362 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:47:47,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:47,363 INFO L85 PathProgramCache]: Analyzing trace with hash -790940254, now seen corresponding path program 1 times [2022-11-18 20:47:47,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:47,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49474002] [2022-11-18 20:47:47,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:47,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:47,830 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:47,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:47,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49474002] [2022-11-18 20:47:47,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49474002] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:47:47,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867287283] [2022-11-18 20:47:47,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:47,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:47:47,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:47:47,833 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:47:47,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:47:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:48,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:47:48,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:47:48,342 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:48,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:47:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:48,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867287283] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:47:48,628 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:47:48,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:47:48,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530742697] [2022-11-18 20:47:48,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:47:48,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:47:48,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:48,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:47:48,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:47:48,636 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 269 [2022-11-18 20:47:48,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 635 transitions, 3464 flow. Second operand has 18 states, 18 states have (on average 231.66666666666666) internal successors, (4170), 18 states have internal predecessors, (4170), 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) [2022-11-18 20:47:48,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:48,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 269 [2022-11-18 20:47:48,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:51,342 INFO L130 PetriNetUnfolder]: 2012/6926 cut-off events. [2022-11-18 20:47:51,342 INFO L131 PetriNetUnfolder]: For 9080/9176 co-relation queries the response was YES. [2022-11-18 20:47:51,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19736 conditions, 6926 events. 2012/6926 cut-off events. For 9080/9176 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 46956 event pairs, 174 based on Foata normal form. 4/6568 useless extension candidates. Maximal degree in co-relation 19139. Up to 1697 conditions per place. [2022-11-18 20:47:51,402 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 164 selfloop transitions, 25 changer transitions 0/745 dead transitions. [2022-11-18 20:47:51,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 745 transitions, 4306 flow [2022-11-18 20:47:51,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:47:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:47:51,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4896 transitions. [2022-11-18 20:47:51,424 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8667020711630377 [2022-11-18 20:47:51,424 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4896 transitions. [2022-11-18 20:47:51,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4896 transitions. [2022-11-18 20:47:51,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:51,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4896 transitions. [2022-11-18 20:47:51,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 233.14285714285714) internal successors, (4896), 21 states have internal predecessors, (4896), 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) [2022-11-18 20:47:51,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 269.0) internal successors, (5918), 22 states have internal predecessors, (5918), 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) [2022-11-18 20:47:51,457 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 269.0) internal successors, (5918), 22 states have internal predecessors, (5918), 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) [2022-11-18 20:47:51,458 INFO L175 Difference]: Start difference. First operand has 307 places, 635 transitions, 3464 flow. Second operand 21 states and 4896 transitions. [2022-11-18 20:47:51,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 745 transitions, 4306 flow [2022-11-18 20:47:51,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 745 transitions, 4264 flow, removed 18 selfloop flow, removed 3 redundant places. [2022-11-18 20:47:51,523 INFO L231 Difference]: Finished difference. Result has 329 places, 648 transitions, 3566 flow [2022-11-18 20:47:51,524 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=3422, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3566, PETRI_PLACES=329, PETRI_TRANSITIONS=648} [2022-11-18 20:47:51,525 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 63 predicate places. [2022-11-18 20:47:51,525 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 648 transitions, 3566 flow [2022-11-18 20:47:51,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 231.66666666666666) internal successors, (4170), 18 states have internal predecessors, (4170), 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) [2022-11-18 20:47:51,527 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:51,528 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:47:51,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:47:51,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:47:51,734 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:47:51,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:51,735 INFO L85 PathProgramCache]: Analyzing trace with hash -571759006, now seen corresponding path program 2 times [2022-11-18 20:47:51,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:51,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727836523] [2022-11-18 20:47:51,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:51,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:52,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:52,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727836523] [2022-11-18 20:47:52,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727836523] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:47:52,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720903817] [2022-11-18 20:47:52,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:47:52,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:47:52,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:47:52,875 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:47:52,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:47:53,154 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:47:53,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:47:53,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:47:53,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:47:53,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:47:53,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:47:53,252 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:47:53,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-18 20:47:53,293 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:47:53,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-18 20:47:53,327 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2022-11-18 20:47:53,327 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:47:53,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720903817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:47:53,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:47:53,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 20:47:53,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784806713] [2022-11-18 20:47:53,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:47:53,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:47:53,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:53,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:47:53,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:47:53,331 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 269 [2022-11-18 20:47:53,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 648 transitions, 3566 flow. Second operand has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 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) [2022-11-18 20:47:53,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:53,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 269 [2022-11-18 20:47:53,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:48:02,358 INFO L130 PetriNetUnfolder]: 6860/20083 cut-off events. [2022-11-18 20:48:02,358 INFO L131 PetriNetUnfolder]: For 34012/34098 co-relation queries the response was YES. [2022-11-18 20:48:02,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63608 conditions, 20083 events. 6860/20083 cut-off events. For 34012/34098 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 163442 event pairs, 3402 based on Foata normal form. 0/18553 useless extension candidates. Maximal degree in co-relation 62947. Up to 12645 conditions per place. [2022-11-18 20:48:02,522 INFO L137 encePairwiseOnDemand]: 226/269 looper letters, 539 selfloop transitions, 170 changer transitions 0/883 dead transitions. [2022-11-18 20:48:02,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 883 transitions, 6810 flow [2022-11-18 20:48:02,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:48:02,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:48:02,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1235 transitions. [2022-11-18 20:48:02,526 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.765179677819083 [2022-11-18 20:48:02,526 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1235 transitions. [2022-11-18 20:48:02,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1235 transitions. [2022-11-18 20:48:02,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:48:02,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1235 transitions. [2022-11-18 20:48:02,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.83333333333334) internal successors, (1235), 6 states have internal predecessors, (1235), 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) [2022-11-18 20:48:02,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 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) [2022-11-18 20:48:02,534 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 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) [2022-11-18 20:48:02,534 INFO L175 Difference]: Start difference. First operand has 329 places, 648 transitions, 3566 flow. Second operand 6 states and 1235 transitions. [2022-11-18 20:48:02,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 883 transitions, 6810 flow [2022-11-18 20:48:02,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 883 transitions, 6784 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-18 20:48:02,615 INFO L231 Difference]: Finished difference. Result has 333 places, 809 transitions, 5954 flow [2022-11-18 20:48:02,616 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=3540, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5954, PETRI_PLACES=333, PETRI_TRANSITIONS=809} [2022-11-18 20:48:02,618 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 67 predicate places. [2022-11-18 20:48:02,619 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 809 transitions, 5954 flow [2022-11-18 20:48:02,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 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) [2022-11-18 20:48:02,619 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:48:02,620 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:02,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:02,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:02,826 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:48:02,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:02,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1665642880, now seen corresponding path program 1 times [2022-11-18 20:48:02,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:02,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315767295] [2022-11-18 20:48:02,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:02,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:03,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:03,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315767295] [2022-11-18 20:48:03,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315767295] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:03,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097750702] [2022-11-18 20:48:03,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:03,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:03,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:03,996 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:04,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:48:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:04,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:48:04,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:04,965 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:04,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:05,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097750702] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:05,621 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:05,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 20:48:05,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858303840] [2022-11-18 20:48:05,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:05,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:48:05,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:05,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:48:05,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:48:05,629 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 269 [2022-11-18 20:48:05,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 809 transitions, 5954 flow. Second operand has 23 states, 23 states have (on average 232.2608695652174) internal successors, (5342), 23 states have internal predecessors, (5342), 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) [2022-11-18 20:48:05,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:48:05,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 269 [2022-11-18 20:48:05,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:48:09,920 INFO L130 PetriNetUnfolder]: 2734/9296 cut-off events. [2022-11-18 20:48:09,920 INFO L131 PetriNetUnfolder]: For 21627/24094 co-relation queries the response was YES. [2022-11-18 20:48:09,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30541 conditions, 9296 events. 2734/9296 cut-off events. For 21627/24094 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 66572 event pairs, 230 based on Foata normal form. 3/8885 useless extension candidates. Maximal degree in co-relation 29661. Up to 2462 conditions per place. [2022-11-18 20:48:09,997 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 252 selfloop transitions, 34 changer transitions 0/971 dead transitions. [2022-11-18 20:48:09,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 971 transitions, 7530 flow [2022-11-18 20:48:09,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:48:09,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 20:48:10,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 6971 transitions. [2022-11-18 20:48:10,014 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8638166047087981 [2022-11-18 20:48:10,014 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 6971 transitions. [2022-11-18 20:48:10,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 6971 transitions. [2022-11-18 20:48:10,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:48:10,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 6971 transitions. [2022-11-18 20:48:10,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 232.36666666666667) internal successors, (6971), 30 states have internal predecessors, (6971), 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) [2022-11-18 20:48:10,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 269.0) internal successors, (8339), 31 states have internal predecessors, (8339), 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) [2022-11-18 20:48:10,055 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 269.0) internal successors, (8339), 31 states have internal predecessors, (8339), 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) [2022-11-18 20:48:10,055 INFO L175 Difference]: Start difference. First operand has 333 places, 809 transitions, 5954 flow. Second operand 30 states and 6971 transitions. [2022-11-18 20:48:10,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 971 transitions, 7530 flow [2022-11-18 20:48:10,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 971 transitions, 6074 flow, removed 728 selfloop flow, removed 0 redundant places. [2022-11-18 20:48:10,172 INFO L231 Difference]: Finished difference. Result has 366 places, 819 transitions, 4920 flow [2022-11-18 20:48:10,173 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=4754, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=809, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=782, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4920, PETRI_PLACES=366, PETRI_TRANSITIONS=819} [2022-11-18 20:48:10,173 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 100 predicate places. [2022-11-18 20:48:10,174 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 819 transitions, 4920 flow [2022-11-18 20:48:10,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 232.2608695652174) internal successors, (5342), 23 states have internal predecessors, (5342), 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) [2022-11-18 20:48:10,176 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:48:10,176 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:10,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:10,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210301d8-3327-489c-a911-6a1f6a5a3ccb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 20:48:10,384 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:48:10,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:10,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1541595771, now seen corresponding path program 2 times [2022-11-18 20:48:10,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:10,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304121900] [2022-11-18 20:48:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:10,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-18 20:48:12,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:12,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304121900] [2022-11-18 20:48:12,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304121900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:12,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:12,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:48:12,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615154444] [2022-11-18 20:48:12,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:12,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:48:12,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:12,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:48:12,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:48:12,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 269 [2022-11-18 20:48:12,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 819 transitions, 4920 flow. Second operand has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:48:12,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:48:12,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 269 [2022-11-18 20:48:12,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:48:24,608 INFO L130 PetriNetUnfolder]: 7942/22885 cut-off events. [2022-11-18 20:48:24,608 INFO L131 PetriNetUnfolder]: For 60319/60395 co-relation queries the response was YES. [2022-11-18 20:48:24,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76568 conditions, 22885 events. 7942/22885 cut-off events. For 60319/60395 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 189095 event pairs, 517 based on Foata normal form. 24/21360 useless extension candidates. Maximal degree in co-relation 75532. Up to 13334 conditions per place. [2022-11-18 20:48:24,795 INFO L137 encePairwiseOnDemand]: 218/269 looper letters, 865 selfloop transitions, 193 changer transitions 0/1221 dead transitions. [2022-11-18 20:48:24,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 1221 transitions, 9584 flow [2022-11-18 20:48:24,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:48:24,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 20:48:24,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2319 transitions. [2022-11-18 20:48:24,801 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6631398341435516 [2022-11-18 20:48:24,801 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2319 transitions. [2022-11-18 20:48:24,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2319 transitions. [2022-11-18 20:48:24,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:48:24,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2319 transitions. [2022-11-18 20:48:24,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 178.3846153846154) internal successors, (2319), 13 states have internal predecessors, (2319), 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) [2022-11-18 20:48:24,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 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) [2022-11-18 20:48:24,815 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 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) [2022-11-18 20:48:24,815 INFO L175 Difference]: Start difference. First operand has 366 places, 819 transitions, 4920 flow. Second operand 13 states and 2319 transitions. [2022-11-18 20:48:24,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 1221 transitions, 9584 flow [2022-11-18 20:48:24,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 1221 transitions, 9536 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 20:48:24,952 INFO L231 Difference]: Finished difference. Result has 371 places, 854 transitions, 5900 flow [2022-11-18 20:48:24,953 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=4872, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5900, PETRI_PLACES=371, PETRI_TRANSITIONS=854} [2022-11-18 20:48:24,954 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 105 predicate places. [2022-11-18 20:48:24,954 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 854 transitions, 5900 flow [2022-11-18 20:48:24,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:48:24,955 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:48:24,955 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:24,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:48:24,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:48:24,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:24,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2064029275, now seen corresponding path program 3 times [2022-11-18 20:48:24,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:24,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283518263] [2022-11-18 20:48:24,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:24,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-18 20:48:27,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:27,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283518263] [2022-11-18 20:48:27,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283518263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:27,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:27,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:48:27,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299558855] [2022-11-18 20:48:27,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:27,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:48:27,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:27,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:48:27,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:48:27,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 269 [2022-11-18 20:48:27,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 854 transitions, 5900 flow. Second operand has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:48:27,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:48:27,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 269 [2022-11-18 20:48:27,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand