./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8 --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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- 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-e04fb08 [2022-11-16 11:04:51,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:04:51,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:04:51,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:04:51,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:04:51,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:04:51,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:04:51,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:04:51,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:04:51,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:04:51,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:04:51,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:04:51,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:04:51,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:04:51,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:04:51,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:04:51,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:04:51,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:04:51,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:04:51,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:04:51,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:04:51,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:04:51,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:04:51,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:04:51,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:04:51,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:04:51,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:04:51,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:04:51,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:04:51,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:04:51,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:04:51,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:04:51,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:04:51,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:04:51,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:04:51,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:04:51,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:04:51,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:04:51,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:04:51,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:04:51,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:04:51,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:04:51,749 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:04:51,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:04:51,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:04:51,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:04:51,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:04:51,754 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:04:51,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:04:51,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:04:51,756 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:04:51,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:04:51,758 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:04:51,758 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:04:51,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:04:51,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:04:51,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:04:51,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:04:51,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:04:51,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:04:51,761 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:04:51,762 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:04:51,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:04:51,762 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:04:51,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:04:51,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:04:51,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:04:51,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:04:51,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:04:51,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:04:51,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:04:51,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:04:51,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:04:51,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:04:51,767 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:04:51,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:04:51,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:04:51,769 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_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2022-11-16 11:04:52,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:04:52,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:04:52,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:04:52,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:04:52,252 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:04:52,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-16 11:04:52,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/data/fa1c39390/386440de56024e179cd2e0c6a3fdf956/FLAGe453866ba [2022-11-16 11:04:53,123 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:04:53,124 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-16 11:04:53,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/data/fa1c39390/386440de56024e179cd2e0c6a3fdf956/FLAGe453866ba [2022-11-16 11:04:53,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/data/fa1c39390/386440de56024e179cd2e0c6a3fdf956 [2022-11-16 11:04:53,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:04:53,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:04:53,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:04:53,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:04:53,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:04:53,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:04:53" (1/1) ... [2022-11-16 11:04:53,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2050e835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:53, skipping insertion in model container [2022-11-16 11:04:53,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:04:53" (1/1) ... [2022-11-16 11:04:53,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:04:53,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:04:54,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:04:54,141 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:04:54,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:04:54,280 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:04:54,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54 WrapperNode [2022-11-16 11:04:54,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:04:54,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:04:54,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:04:54,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:04:54,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (1/1) ... [2022-11-16 11:04:54,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (1/1) ... [2022-11-16 11:04:54,352 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-11-16 11:04:54,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:04:54,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:04:54,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:04:54,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:04:54,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (1/1) ... [2022-11-16 11:04:54,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (1/1) ... [2022-11-16 11:04:54,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (1/1) ... [2022-11-16 11:04:54,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (1/1) ... [2022-11-16 11:04:54,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (1/1) ... [2022-11-16 11:04:54,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (1/1) ... [2022-11-16 11:04:54,394 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (1/1) ... [2022-11-16 11:04:54,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (1/1) ... [2022-11-16 11:04:54,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:04:54,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:04:54,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:04:54,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:04:54,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (1/1) ... [2022-11-16 11:04:54,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:04:54,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:04:54,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:04:54,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:04:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:04:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:04:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:04:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:04:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:04:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:04:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:04:54,513 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:04:54,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:04:54,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:04:54,516 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:04:54,858 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:04:54,861 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:04:55,217 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:04:55,227 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:04:55,228 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:04:55,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:04:55 BoogieIcfgContainer [2022-11-16 11:04:55,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:04:55,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:04:55,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:04:55,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:04:55,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:04:53" (1/3) ... [2022-11-16 11:04:55,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddcb23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:04:55, skipping insertion in model container [2022-11-16 11:04:55,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:54" (2/3) ... [2022-11-16 11:04:55,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddcb23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:04:55, skipping insertion in model container [2022-11-16 11:04:55,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:04:55" (3/3) ... [2022-11-16 11:04:55,244 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2022-11-16 11:04:55,264 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:04:55,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:04:55,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 11:04:55,280 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:04:55,450 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:04:55,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 106 transitions, 217 flow [2022-11-16 11:04:55,636 INFO L130 PetriNetUnfolder]: 4/105 cut-off events. [2022-11-16 11:04:55,636 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:04:55,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 105 events. 4/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-11-16 11:04:55,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 106 transitions, 217 flow [2022-11-16 11:04:55,654 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 105 transitions, 213 flow [2022-11-16 11:04:55,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:04:55,680 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;@561c3c3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:04:55,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-16 11:04:55,744 INFO L130 PetriNetUnfolder]: 4/55 cut-off events. [2022-11-16 11:04:55,744 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:04:55,745 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:55,746 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] [2022-11-16 11:04:55,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:55,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:55,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1316832337, now seen corresponding path program 1 times [2022-11-16 11:04:55,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:55,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289920736] [2022-11-16 11:04:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:55,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:56,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:56,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:56,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289920736] [2022-11-16 11:04:56,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289920736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:56,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:56,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:04:56,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162489212] [2022-11-16 11:04:56,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:56,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:04:56,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:56,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:04:56,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:04:56,279 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 106 [2022-11-16 11:04:56,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 213 flow. Second operand has 2 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:56,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:56,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 106 [2022-11-16 11:04:56,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:56,344 INFO L130 PetriNetUnfolder]: 1/102 cut-off events. [2022-11-16 11:04:56,344 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:04:56,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 102 events. 1/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-16 11:04:56,347 INFO L137 encePairwiseOnDemand]: 103/106 looper letters, 1 selfloop transitions, 0 changer transitions 1/102 dead transitions. [2022-11-16 11:04:56,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 102 transitions, 209 flow [2022-11-16 11:04:56,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:04:56,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:04:56,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 208 transitions. [2022-11-16 11:04:56,367 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9811320754716981 [2022-11-16 11:04:56,369 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 208 transitions. [2022-11-16 11:04:56,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 208 transitions. [2022-11-16 11:04:56,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:56,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 208 transitions. [2022-11-16 11:04:56,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:56,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:56,389 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:56,391 INFO L175 Difference]: Start difference. First operand has 105 places, 105 transitions, 213 flow. Second operand 2 states and 208 transitions. [2022-11-16 11:04:56,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 102 transitions, 209 flow [2022-11-16 11:04:56,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:04:56,410 INFO L231 Difference]: Finished difference. Result has 105 places, 101 transitions, 204 flow [2022-11-16 11:04:56,413 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=204, PETRI_PLACES=105, PETRI_TRANSITIONS=101} [2022-11-16 11:04:56,421 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 0 predicate places. [2022-11-16 11:04:56,422 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 101 transitions, 204 flow [2022-11-16 11:04:56,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:56,423 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:56,424 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] [2022-11-16 11:04:56,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:04:56,425 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:56,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:56,427 INFO L85 PathProgramCache]: Analyzing trace with hash 900925616, now seen corresponding path program 1 times [2022-11-16 11:04:56,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:56,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920065132] [2022-11-16 11:04:56,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:56,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:56,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:56,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:56,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920065132] [2022-11-16 11:04:56,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920065132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:56,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:56,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:04:56,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923130491] [2022-11-16 11:04:56,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:56,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:04:56,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:56,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:04:56,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:04:56,677 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 106 [2022-11-16 11:04:56,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 101 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:56,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:56,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 106 [2022-11-16 11:04:56,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:56,772 INFO L130 PetriNetUnfolder]: 1/105 cut-off events. [2022-11-16 11:04:56,773 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:04:56,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 105 events. 1/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 119. Up to 9 conditions per place. [2022-11-16 11:04:56,784 INFO L137 encePairwiseOnDemand]: 103/106 looper letters, 10 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2022-11-16 11:04:56,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 105 transitions, 236 flow [2022-11-16 11:04:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:04:56,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:04:56,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2022-11-16 11:04:56,793 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9371069182389937 [2022-11-16 11:04:56,796 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2022-11-16 11:04:56,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2022-11-16 11:04:56,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:56,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2022-11-16 11:04:56,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:56,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:56,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:56,812 INFO L175 Difference]: Start difference. First operand has 105 places, 101 transitions, 204 flow. Second operand 3 states and 298 transitions. [2022-11-16 11:04:56,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 105 transitions, 236 flow [2022-11-16 11:04:56,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 105 transitions, 236 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:04:56,818 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 216 flow [2022-11-16 11:04:56,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2022-11-16 11:04:56,821 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 2 predicate places. [2022-11-16 11:04:56,821 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 216 flow [2022-11-16 11:04:56,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:56,822 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:56,823 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] [2022-11-16 11:04:56,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:04:56,824 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:56,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:56,828 INFO L85 PathProgramCache]: Analyzing trace with hash 438260885, now seen corresponding path program 1 times [2022-11-16 11:04:56,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:56,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085516096] [2022-11-16 11:04:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:56,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:57,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:57,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:57,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085516096] [2022-11-16 11:04:57,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085516096] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:04:57,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844956756] [2022-11-16 11:04:57,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:57,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:04:57,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:04:57,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:04:57,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:04:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:57,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:04:57,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:04:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:57,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:04:57,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:57,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844956756] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:04:57,485 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:04:57,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 11:04:57,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042761174] [2022-11-16 11:04:57,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:04:57,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:04:57,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:57,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:04:57,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:04:57,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-16 11:04:57,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 216 flow. Second operand has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:57,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:57,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-16 11:04:57,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:57,715 INFO L130 PetriNetUnfolder]: 1/112 cut-off events. [2022-11-16 11:04:57,716 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:04:57,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 112 events. 1/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 2/109 useless extension candidates. Maximal degree in co-relation 140. Up to 6 conditions per place. [2022-11-16 11:04:57,717 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 11 selfloop transitions, 9 changer transitions 0/112 dead transitions. [2022-11-16 11:04:57,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 112 transitions, 278 flow [2022-11-16 11:04:57,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:04:57,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:04:57,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 868 transitions. [2022-11-16 11:04:57,722 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.909853249475891 [2022-11-16 11:04:57,723 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 868 transitions. [2022-11-16 11:04:57,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 868 transitions. [2022-11-16 11:04:57,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:57,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 868 transitions. [2022-11-16 11:04:57,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.44444444444444) internal successors, (868), 9 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:57,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:57,733 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:57,734 INFO L175 Difference]: Start difference. First operand has 107 places, 102 transitions, 216 flow. Second operand 9 states and 868 transitions. [2022-11-16 11:04:57,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 112 transitions, 278 flow [2022-11-16 11:04:57,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 112 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:04:57,739 INFO L231 Difference]: Finished difference. Result has 117 places, 108 transitions, 264 flow [2022-11-16 11:04:57,739 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=117, PETRI_TRANSITIONS=108} [2022-11-16 11:04:57,740 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 12 predicate places. [2022-11-16 11:04:57,741 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 108 transitions, 264 flow [2022-11-16 11:04:57,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:57,742 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:57,743 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-16 11:04:57,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 11:04:57,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:04:57,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:57,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:57,953 INFO L85 PathProgramCache]: Analyzing trace with hash 432939381, now seen corresponding path program 2 times [2022-11-16 11:04:57,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:57,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260281274] [2022-11-16 11:04:57,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:57,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:58,371 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:58,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:58,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260281274] [2022-11-16 11:04:58,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260281274] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:04:58,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288519818] [2022-11-16 11:04:58,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:04:58,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:04:58,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:04:58,375 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:04:58,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:04:58,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:04:58,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:04:58,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:04:58,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:04:58,607 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 15 treesize of output 11 [2022-11-16 11:04:58,641 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 28 treesize of output 27 [2022-11-16 11:04:58,698 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:04:58,699 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 40 treesize of output 42 [2022-11-16 11:04:58,789 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:04:58,800 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 52 treesize of output 57 [2022-11-16 11:04:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 11:04:58,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:04:58,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288519818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:58,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:04:58,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-16 11:04:58,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285306391] [2022-11-16 11:04:58,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:58,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:04:58,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:58,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:04:58,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:04:58,861 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 106 [2022-11-16 11:04:58,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 108 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:58,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:58,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 106 [2022-11-16 11:04:58,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:59,396 INFO L130 PetriNetUnfolder]: 231/750 cut-off events. [2022-11-16 11:04:59,397 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:04:59,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 750 events. 231/750 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3985 event pairs, 103 based on Foata normal form. 0/681 useless extension candidates. Maximal degree in co-relation 1281. Up to 361 conditions per place. [2022-11-16 11:04:59,405 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 72 selfloop transitions, 22 changer transitions 0/166 dead transitions. [2022-11-16 11:04:59,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 166 transitions, 568 flow [2022-11-16 11:04:59,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:04:59,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:04:59,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2022-11-16 11:04:59,409 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7814465408805031 [2022-11-16 11:04:59,409 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2022-11-16 11:04:59,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2022-11-16 11:04:59,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:59,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2022-11-16 11:04:59,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:59,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:59,415 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:59,416 INFO L175 Difference]: Start difference. First operand has 117 places, 108 transitions, 264 flow. Second operand 6 states and 497 transitions. [2022-11-16 11:04:59,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 166 transitions, 568 flow [2022-11-16 11:04:59,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 166 transitions, 562 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-16 11:04:59,423 INFO L231 Difference]: Finished difference. Result has 126 places, 129 transitions, 408 flow [2022-11-16 11:04:59,423 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=126, PETRI_TRANSITIONS=129} [2022-11-16 11:04:59,424 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 21 predicate places. [2022-11-16 11:04:59,425 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 129 transitions, 408 flow [2022-11-16 11:04:59,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:59,426 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:59,426 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-16 11:04:59,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:04:59,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:04:59,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:59,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:59,642 INFO L85 PathProgramCache]: Analyzing trace with hash 491733010, now seen corresponding path program 1 times [2022-11-16 11:04:59,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:59,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448171365] [2022-11-16 11:04:59,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:59,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:59,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:59,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448171365] [2022-11-16 11:04:59,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448171365] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:04:59,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139210910] [2022-11-16 11:04:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:59,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:04:59,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:04:59,868 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:04:59,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:05:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:00,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:05:00,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:05:00,123 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:00,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:05:00,299 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:00,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139210910] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:05:00,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:05:00,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 11:05:00,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28421228] [2022-11-16 11:05:00,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:05:00,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:05:00,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:00,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:05:00,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:05:00,306 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-16 11:05:00,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 129 transitions, 408 flow. Second operand has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:00,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:00,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-16 11:05:00,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:00,697 INFO L130 PetriNetUnfolder]: 34/284 cut-off events. [2022-11-16 11:05:00,698 INFO L131 PetriNetUnfolder]: For 46/51 co-relation queries the response was YES. [2022-11-16 11:05:00,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 284 events. 34/284 cut-off events. For 46/51 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 826 event pairs, 4 based on Foata normal form. 4/275 useless extension candidates. Maximal degree in co-relation 509. Up to 49 conditions per place. [2022-11-16 11:05:00,704 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 19 selfloop transitions, 21 changer transitions 0/153 dead transitions. [2022-11-16 11:05:00,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 153 transitions, 588 flow [2022-11-16 11:05:00,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:05:00,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:05:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2018 transitions. [2022-11-16 11:05:00,711 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065588499550764 [2022-11-16 11:05:00,712 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2018 transitions. [2022-11-16 11:05:00,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2018 transitions. [2022-11-16 11:05:00,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:00,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2018 transitions. [2022-11-16 11:05:00,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 96.0952380952381) internal successors, (2018), 21 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:00,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:00,730 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:00,730 INFO L175 Difference]: Start difference. First operand has 126 places, 129 transitions, 408 flow. Second operand 21 states and 2018 transitions. [2022-11-16 11:05:00,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 153 transitions, 588 flow [2022-11-16 11:05:00,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 153 transitions, 588 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:05:00,746 INFO L231 Difference]: Finished difference. Result has 151 places, 142 transitions, 538 flow [2022-11-16 11:05:00,746 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=538, PETRI_PLACES=151, PETRI_TRANSITIONS=142} [2022-11-16 11:05:00,752 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 46 predicate places. [2022-11-16 11:05:00,752 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 142 transitions, 538 flow [2022-11-16 11:05:00,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:00,754 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:00,754 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-16 11:05:00,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:05:00,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:05:00,962 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:00,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:00,963 INFO L85 PathProgramCache]: Analyzing trace with hash 656757202, now seen corresponding path program 2 times [2022-11-16 11:05:00,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:00,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507838126] [2022-11-16 11:05:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:00,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:01,592 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:01,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:01,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507838126] [2022-11-16 11:05:01,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507838126] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:05:01,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689285008] [2022-11-16 11:05:01,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:05:01,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:05:01,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:05:01,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:05:01,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:05:01,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:05:01,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:05:01,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:05:01,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:05:01,773 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 15 treesize of output 11 [2022-11-16 11:05:01,805 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 28 treesize of output 27 [2022-11-16 11:05:01,856 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:05:01,857 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 40 treesize of output 42 [2022-11-16 11:05:01,930 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:05:01,931 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 52 treesize of output 57 [2022-11-16 11:05:01,990 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 11:05:01,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:05:01,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689285008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:01,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:05:01,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-16 11:05:01,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764828518] [2022-11-16 11:05:01,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:01,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:01,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:01,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:01,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:05:01,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 106 [2022-11-16 11:05:01,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 142 transitions, 538 flow. Second operand has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:01,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:01,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 106 [2022-11-16 11:05:01,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:02,670 INFO L130 PetriNetUnfolder]: 315/1037 cut-off events. [2022-11-16 11:05:02,671 INFO L131 PetriNetUnfolder]: For 265/269 co-relation queries the response was YES. [2022-11-16 11:05:02,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2163 conditions, 1037 events. 315/1037 cut-off events. For 265/269 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6068 event pairs, 133 based on Foata normal form. 4/963 useless extension candidates. Maximal degree in co-relation 2146. Up to 572 conditions per place. [2022-11-16 11:05:02,682 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 73 selfloop transitions, 39 changer transitions 5/199 dead transitions. [2022-11-16 11:05:02,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 199 transitions, 916 flow [2022-11-16 11:05:02,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:02,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:02,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2022-11-16 11:05:02,686 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7641509433962265 [2022-11-16 11:05:02,686 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 486 transitions. [2022-11-16 11:05:02,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 486 transitions. [2022-11-16 11:05:02,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:02,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 486 transitions. [2022-11-16 11:05:02,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:02,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:02,695 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:02,695 INFO L175 Difference]: Start difference. First operand has 151 places, 142 transitions, 538 flow. Second operand 6 states and 486 transitions. [2022-11-16 11:05:02,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 199 transitions, 916 flow [2022-11-16 11:05:02,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 199 transitions, 892 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 11:05:02,707 INFO L231 Difference]: Finished difference. Result has 155 places, 178 transitions, 802 flow [2022-11-16 11:05:02,708 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=155, PETRI_TRANSITIONS=178} [2022-11-16 11:05:02,711 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 50 predicate places. [2022-11-16 11:05:02,712 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 178 transitions, 802 flow [2022-11-16 11:05:02,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:02,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:02,713 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-16 11:05:02,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:05:02,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:05:02,922 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:02,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:02,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1425828848, now seen corresponding path program 1 times [2022-11-16 11:05:02,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:02,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175493374] [2022-11-16 11:05:02,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:02,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:03,440 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:03,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:03,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175493374] [2022-11-16 11:05:03,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175493374] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:05:03,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657687649] [2022-11-16 11:05:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:03,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:05:03,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:05:03,444 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:05:03,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:05:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:03,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 11:05:03,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:05:03,794 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:03,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:05:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:04,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657687649] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:05:04,160 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:05:04,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-16 11:05:04,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534945738] [2022-11-16 11:05:04,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:05:04,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 11:05:04,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:04,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 11:05:04,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:05:04,169 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-16 11:05:04,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 178 transitions, 802 flow. Second operand has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:04,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:04,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-16 11:05:04,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:04,830 INFO L130 PetriNetUnfolder]: 119/559 cut-off events. [2022-11-16 11:05:04,830 INFO L131 PetriNetUnfolder]: For 316/329 co-relation queries the response was YES. [2022-11-16 11:05:04,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 559 events. 119/559 cut-off events. For 316/329 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2649 event pairs, 8 based on Foata normal form. 7/546 useless extension candidates. Maximal degree in co-relation 1220. Up to 116 conditions per place. [2022-11-16 11:05:04,837 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 25 selfloop transitions, 30 changer transitions 0/204 dead transitions. [2022-11-16 11:05:04,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 204 transitions, 1052 flow [2022-11-16 11:05:04,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 11:05:04,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 11:05:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2878 transitions. [2022-11-16 11:05:04,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9050314465408805 [2022-11-16 11:05:04,846 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2878 transitions. [2022-11-16 11:05:04,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2878 transitions. [2022-11-16 11:05:04,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:04,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2878 transitions. [2022-11-16 11:05:04,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 95.93333333333334) internal successors, (2878), 30 states have internal predecessors, (2878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:04,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:04,868 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:04,868 INFO L175 Difference]: Start difference. First operand has 155 places, 178 transitions, 802 flow. Second operand 30 states and 2878 transitions. [2022-11-16 11:05:04,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 204 transitions, 1052 flow [2022-11-16 11:05:04,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 204 transitions, 1020 flow, removed 16 selfloop flow, removed 0 redundant places. [2022-11-16 11:05:04,881 INFO L231 Difference]: Finished difference. Result has 187 places, 188 transitions, 922 flow [2022-11-16 11:05:04,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=922, PETRI_PLACES=187, PETRI_TRANSITIONS=188} [2022-11-16 11:05:04,882 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 82 predicate places. [2022-11-16 11:05:04,883 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 188 transitions, 922 flow [2022-11-16 11:05:04,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:04,884 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:04,885 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-16 11:05:04,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:05:05,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971d4803-02f4-44ab-ab20-16363eb41177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:05:05,092 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:05,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:05,093 INFO L85 PathProgramCache]: Analyzing trace with hash 2073879691, now seen corresponding path program 2 times [2022-11-16 11:05:05,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:05,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607973991] [2022-11-16 11:05:05,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:05,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:05,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:05,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607973991] [2022-11-16 11:05:05,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607973991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:05,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:05,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:05,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641053891] [2022-11-16 11:05:05,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:05,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:05,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:05,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:05,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:05,880 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 106 [2022-11-16 11:05:05,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 188 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:05,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:05,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 106 [2022-11-16 11:05:05,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:06,520 INFO L130 PetriNetUnfolder]: 321/1097 cut-off events. [2022-11-16 11:05:06,520 INFO L131 PetriNetUnfolder]: For 786/794 co-relation queries the response was YES. [2022-11-16 11:05:06,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2849 conditions, 1097 events. 321/1097 cut-off events. For 786/794 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6381 event pairs, 77 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 2823. Up to 538 conditions per place. [2022-11-16 11:05:06,535 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 108 selfloop transitions, 40 changer transitions 0/249 dead transitions. [2022-11-16 11:05:06,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 249 transitions, 1544 flow [2022-11-16 11:05:06,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:06,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:06,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 519 transitions. [2022-11-16 11:05:06,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8160377358490566 [2022-11-16 11:05:06,540 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 519 transitions. [2022-11-16 11:05:06,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 519 transitions. [2022-11-16 11:05:06,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:06,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 519 transitions. [2022-11-16 11:05:06,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:06,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:06,546 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:06,547 INFO L175 Difference]: Start difference. First operand has 187 places, 188 transitions, 922 flow. Second operand 6 states and 519 transitions. [2022-11-16 11:05:06,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 249 transitions, 1544 flow [2022-11-16 11:05:06,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 249 transitions, 1498 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-16 11:05:06,565 INFO L231 Difference]: Finished difference. Result has 179 places, 219 transitions, 1244 flow [2022-11-16 11:05:06,566 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1244, PETRI_PLACES=179, PETRI_TRANSITIONS=219} [2022-11-16 11:05:06,567 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 74 predicate places. [2022-11-16 11:05:06,567 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 219 transitions, 1244 flow [2022-11-16 11:05:06,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:06,568 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:06,569 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-16 11:05:06,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:05:06,570 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:06,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:06,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1373859952, now seen corresponding path program 1 times [2022-11-16 11:05:06,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:06,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113649828] [2022-11-16 11:05:06,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:06,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:07,295 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:07,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:07,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113649828] [2022-11-16 11:05:07,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113649828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:07,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:07,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:07,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777781573] [2022-11-16 11:05:07,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:07,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:07,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:07,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:07,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:07,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 106 [2022-11-16 11:05:07,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 219 transitions, 1244 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:07,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:07,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 106 [2022-11-16 11:05:07,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:08,112 INFO L130 PetriNetUnfolder]: 432/1376 cut-off events. [2022-11-16 11:05:08,112 INFO L131 PetriNetUnfolder]: For 1529/1536 co-relation queries the response was YES. [2022-11-16 11:05:08,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4044 conditions, 1376 events. 432/1376 cut-off events. For 1529/1536 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8476 event pairs, 122 based on Foata normal form. 0/1341 useless extension candidates. Maximal degree in co-relation 4013. Up to 770 conditions per place. [2022-11-16 11:05:08,132 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 115 selfloop transitions, 58 changer transitions 18/290 dead transitions. [2022-11-16 11:05:08,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 290 transitions, 2038 flow [2022-11-16 11:05:08,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:08,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:08,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 512 transitions. [2022-11-16 11:05:08,135 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8050314465408805 [2022-11-16 11:05:08,136 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 512 transitions. [2022-11-16 11:05:08,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 512 transitions. [2022-11-16 11:05:08,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:08,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 512 transitions. [2022-11-16 11:05:08,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:08,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:08,142 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:08,142 INFO L175 Difference]: Start difference. First operand has 179 places, 219 transitions, 1244 flow. Second operand 6 states and 512 transitions. [2022-11-16 11:05:08,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 290 transitions, 2038 flow [2022-11-16 11:05:08,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 290 transitions, 2020 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 11:05:08,174 INFO L231 Difference]: Finished difference. Result has 189 places, 260 transitions, 1746 flow [2022-11-16 11:05:08,174 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1746, PETRI_PLACES=189, PETRI_TRANSITIONS=260} [2022-11-16 11:05:08,176 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 84 predicate places. [2022-11-16 11:05:08,176 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 260 transitions, 1746 flow [2022-11-16 11:05:08,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:08,177 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:08,177 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:05:08,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:05:08,178 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:08,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:08,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1228962851, now seen corresponding path program 1 times [2022-11-16 11:05:08,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:08,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560418559] [2022-11-16 11:05:08,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:08,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:10,372 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:10,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:10,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560418559] [2022-11-16 11:05:10,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560418559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:10,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:10,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:05:10,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445227917] [2022-11-16 11:05:10,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:10,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:05:10,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:10,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:05:10,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:05:10,377 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:05:10,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 260 transitions, 1746 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:10,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:10,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:05:10,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:12,146 INFO L130 PetriNetUnfolder]: 602/1868 cut-off events. [2022-11-16 11:05:12,146 INFO L131 PetriNetUnfolder]: For 3034/3048 co-relation queries the response was YES. [2022-11-16 11:05:12,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6138 conditions, 1868 events. 602/1868 cut-off events. For 3034/3048 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12296 event pairs, 47 based on Foata normal form. 16/1870 useless extension candidates. Maximal degree in co-relation 6102. Up to 853 conditions per place. [2022-11-16 11:05:12,171 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 210 selfloop transitions, 77 changer transitions 45/421 dead transitions. [2022-11-16 11:05:12,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 421 transitions, 3468 flow [2022-11-16 11:05:12,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:05:12,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:05:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 888 transitions. [2022-11-16 11:05:12,175 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6981132075471698 [2022-11-16 11:05:12,176 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 888 transitions. [2022-11-16 11:05:12,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 888 transitions. [2022-11-16 11:05:12,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:12,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 888 transitions. [2022-11-16 11:05:12,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:12,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:12,185 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:12,185 INFO L175 Difference]: Start difference. First operand has 189 places, 260 transitions, 1746 flow. Second operand 12 states and 888 transitions. [2022-11-16 11:05:12,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 421 transitions, 3468 flow [2022-11-16 11:05:12,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 421 transitions, 3388 flow, removed 40 selfloop flow, removed 0 redundant places. [2022-11-16 11:05:12,242 INFO L231 Difference]: Finished difference. Result has 208 places, 296 transitions, 2289 flow [2022-11-16 11:05:12,243 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1678, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2289, PETRI_PLACES=208, PETRI_TRANSITIONS=296} [2022-11-16 11:05:12,244 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 103 predicate places. [2022-11-16 11:05:12,245 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 296 transitions, 2289 flow [2022-11-16 11:05:12,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:12,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:12,247 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:05:12,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:05:12,248 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:12,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:12,249 INFO L85 PathProgramCache]: Analyzing trace with hash 723428963, now seen corresponding path program 2 times [2022-11-16 11:05:12,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:12,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006503235] [2022-11-16 11:05:12,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:12,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:13,939 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:13,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:13,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006503235] [2022-11-16 11:05:13,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006503235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:13,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:13,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:05:13,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924603383] [2022-11-16 11:05:13,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:13,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:05:13,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:13,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:05:13,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:05:13,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:05:13,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 296 transitions, 2289 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:13,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:13,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:05:13,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:15,686 INFO L130 PetriNetUnfolder]: 568/1752 cut-off events. [2022-11-16 11:05:15,687 INFO L131 PetriNetUnfolder]: For 4572/4592 co-relation queries the response was YES. [2022-11-16 11:05:15,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6713 conditions, 1752 events. 568/1752 cut-off events. For 4572/4592 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 11352 event pairs, 140 based on Foata normal form. 14/1755 useless extension candidates. Maximal degree in co-relation 6668. Up to 869 conditions per place. [2022-11-16 11:05:15,714 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 192 selfloop transitions, 80 changer transitions 25/386 dead transitions. [2022-11-16 11:05:15,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 386 transitions, 3442 flow [2022-11-16 11:05:15,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:05:15,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:05:15,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 699 transitions. [2022-11-16 11:05:15,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7327044025157232 [2022-11-16 11:05:15,721 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 699 transitions. [2022-11-16 11:05:15,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 699 transitions. [2022-11-16 11:05:15,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:15,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 699 transitions. [2022-11-16 11:05:15,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:15,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:15,730 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:15,731 INFO L175 Difference]: Start difference. First operand has 208 places, 296 transitions, 2289 flow. Second operand 9 states and 699 transitions. [2022-11-16 11:05:15,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 386 transitions, 3442 flow [2022-11-16 11:05:15,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 386 transitions, 3412 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-11-16 11:05:15,809 INFO L231 Difference]: Finished difference. Result has 216 places, 300 transitions, 2496 flow [2022-11-16 11:05:15,810 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2264, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2496, PETRI_PLACES=216, PETRI_TRANSITIONS=300} [2022-11-16 11:05:15,811 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 111 predicate places. [2022-11-16 11:05:15,811 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 300 transitions, 2496 flow [2022-11-16 11:05:15,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:15,812 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:15,813 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:05:15,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:05:15,813 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:15,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:15,814 INFO L85 PathProgramCache]: Analyzing trace with hash -985176137, now seen corresponding path program 3 times [2022-11-16 11:05:15,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:15,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661610896] [2022-11-16 11:05:15,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:15,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:17,648 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:17,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:17,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661610896] [2022-11-16 11:05:17,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661610896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:17,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:17,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:05:17,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220457059] [2022-11-16 11:05:17,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:17,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:05:17,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:17,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:05:17,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:05:17,652 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:05:17,653 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 300 transitions, 2496 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:17,653 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:17,653 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:05:17,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:20,252 INFO L130 PetriNetUnfolder]: 1074/2977 cut-off events. [2022-11-16 11:05:20,253 INFO L131 PetriNetUnfolder]: For 10658/10693 co-relation queries the response was YES. [2022-11-16 11:05:20,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12581 conditions, 2977 events. 1074/2977 cut-off events. For 10658/10693 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 22078 event pairs, 127 based on Foata normal form. 28/2984 useless extension candidates. Maximal degree in co-relation 12533. Up to 953 conditions per place. [2022-11-16 11:05:20,307 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 382 selfloop transitions, 95 changer transitions 25/591 dead transitions. [2022-11-16 11:05:20,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 591 transitions, 6202 flow [2022-11-16 11:05:20,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:05:20,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:05:20,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 844 transitions. [2022-11-16 11:05:20,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7238421955403087 [2022-11-16 11:05:20,311 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 844 transitions. [2022-11-16 11:05:20,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 844 transitions. [2022-11-16 11:05:20,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:20,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 844 transitions. [2022-11-16 11:05:20,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.72727272727273) internal successors, (844), 11 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:20,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:20,320 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:20,320 INFO L175 Difference]: Start difference. First operand has 216 places, 300 transitions, 2496 flow. Second operand 11 states and 844 transitions. [2022-11-16 11:05:20,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 591 transitions, 6202 flow [2022-11-16 11:05:20,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 591 transitions, 6062 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-16 11:05:20,444 INFO L231 Difference]: Finished difference. Result has 229 places, 380 transitions, 3909 flow [2022-11-16 11:05:20,444 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2431, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3909, PETRI_PLACES=229, PETRI_TRANSITIONS=380} [2022-11-16 11:05:20,445 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 124 predicate places. [2022-11-16 11:05:20,446 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 380 transitions, 3909 flow [2022-11-16 11:05:20,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:20,448 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:20,448 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:05:20,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:05:20,449 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:20,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:20,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1519693021, now seen corresponding path program 4 times [2022-11-16 11:05:20,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:20,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119046166] [2022-11-16 11:05:20,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:20,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:22,027 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:22,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:22,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119046166] [2022-11-16 11:05:22,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119046166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:22,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:22,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:05:22,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519453850] [2022-11-16 11:05:22,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:22,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:05:22,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:22,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:05:22,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:05:22,034 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:05:22,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 380 transitions, 3909 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:22,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:22,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:05:22,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:24,610 INFO L130 PetriNetUnfolder]: 1062/3247 cut-off events. [2022-11-16 11:05:24,611 INFO L131 PetriNetUnfolder]: For 14462/14502 co-relation queries the response was YES. [2022-11-16 11:05:24,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13808 conditions, 3247 events. 1062/3247 cut-off events. For 14462/14502 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 25646 event pairs, 210 based on Foata normal form. 29/3249 useless extension candidates. Maximal degree in co-relation 13753. Up to 990 conditions per place. [2022-11-16 11:05:24,668 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 388 selfloop transitions, 104 changer transitions 31/612 dead transitions. [2022-11-16 11:05:24,669 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 612 transitions, 6805 flow [2022-11-16 11:05:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:05:24,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:05:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 803 transitions. [2022-11-16 11:05:24,673 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7575471698113208 [2022-11-16 11:05:24,673 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 803 transitions. [2022-11-16 11:05:24,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 803 transitions. [2022-11-16 11:05:24,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:24,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 803 transitions. [2022-11-16 11:05:24,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.3) internal successors, (803), 10 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:24,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:24,684 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:24,685 INFO L175 Difference]: Start difference. First operand has 229 places, 380 transitions, 3909 flow. Second operand 10 states and 803 transitions. [2022-11-16 11:05:24,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 612 transitions, 6805 flow [2022-11-16 11:05:24,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 612 transitions, 6757 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-16 11:05:24,843 INFO L231 Difference]: Finished difference. Result has 244 places, 406 transitions, 4598 flow [2022-11-16 11:05:24,845 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=3861, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4598, PETRI_PLACES=244, PETRI_TRANSITIONS=406} [2022-11-16 11:05:24,847 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 139 predicate places. [2022-11-16 11:05:24,847 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 406 transitions, 4598 flow [2022-11-16 11:05:24,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:24,848 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:24,848 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:05:24,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:05:24,849 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:24,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:24,850 INFO L85 PathProgramCache]: Analyzing trace with hash 221665039, now seen corresponding path program 5 times [2022-11-16 11:05:24,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:24,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211218769] [2022-11-16 11:05:24,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:24,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:26,449 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:26,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:26,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211218769] [2022-11-16 11:05:26,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211218769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:26,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:26,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:05:26,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240306291] [2022-11-16 11:05:26,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:26,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:05:26,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:26,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:05:26,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:05:26,452 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:05:26,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 406 transitions, 4598 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:26,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:26,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:05:26,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:29,398 INFO L130 PetriNetUnfolder]: 1072/3150 cut-off events. [2022-11-16 11:05:29,399 INFO L131 PetriNetUnfolder]: For 18627/18665 co-relation queries the response was YES. [2022-11-16 11:05:29,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14775 conditions, 3150 events. 1072/3150 cut-off events. For 18627/18665 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 24234 event pairs, 252 based on Foata normal form. 27/3158 useless extension candidates. Maximal degree in co-relation 14713. Up to 1627 conditions per place. [2022-11-16 11:05:29,468 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 237 selfloop transitions, 158 changer transitions 21/505 dead transitions. [2022-11-16 11:05:29,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 505 transitions, 6246 flow [2022-11-16 11:05:29,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:05:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:05:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 893 transitions. [2022-11-16 11:05:29,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7020440251572327 [2022-11-16 11:05:29,473 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 893 transitions. [2022-11-16 11:05:29,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 893 transitions. [2022-11-16 11:05:29,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:29,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 893 transitions. [2022-11-16 11:05:29,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.41666666666667) internal successors, (893), 12 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:29,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:29,495 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:29,495 INFO L175 Difference]: Start difference. First operand has 244 places, 406 transitions, 4598 flow. Second operand 12 states and 893 transitions. [2022-11-16 11:05:29,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 505 transitions, 6246 flow [2022-11-16 11:05:29,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 505 transitions, 6102 flow, removed 69 selfloop flow, removed 1 redundant places. [2022-11-16 11:05:29,717 INFO L231 Difference]: Finished difference. Result has 259 places, 420 transitions, 5041 flow [2022-11-16 11:05:29,718 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4457, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5041, PETRI_PLACES=259, PETRI_TRANSITIONS=420} [2022-11-16 11:05:29,719 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 154 predicate places. [2022-11-16 11:05:29,720 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 420 transitions, 5041 flow [2022-11-16 11:05:29,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:29,743 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:29,743 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:05:29,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:05:29,744 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:29,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:29,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1385481261, now seen corresponding path program 6 times [2022-11-16 11:05:29,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:29,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712018161] [2022-11-16 11:05:29,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:29,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:31,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:31,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712018161] [2022-11-16 11:05:31,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712018161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:31,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:31,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:05:31,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692700487] [2022-11-16 11:05:31,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:31,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:05:31,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:31,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:05:31,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:05:31,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:05:31,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 420 transitions, 5041 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:31,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:31,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:05:31,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:34,385 INFO L130 PetriNetUnfolder]: 1065/3193 cut-off events. [2022-11-16 11:05:34,385 INFO L131 PetriNetUnfolder]: For 20958/20997 co-relation queries the response was YES. [2022-11-16 11:05:34,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15337 conditions, 3193 events. 1065/3193 cut-off events. For 20958/20997 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24921 event pairs, 198 based on Foata normal form. 31/3201 useless extension candidates. Maximal degree in co-relation 15270. Up to 943 conditions per place. [2022-11-16 11:05:34,424 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 430 selfloop transitions, 108 changer transitions 38/665 dead transitions. [2022-11-16 11:05:34,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 665 transitions, 8247 flow [2022-11-16 11:05:34,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:05:34,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:05:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 877 transitions. [2022-11-16 11:05:34,428 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7521440823327615 [2022-11-16 11:05:34,428 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 877 transitions. [2022-11-16 11:05:34,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 877 transitions. [2022-11-16 11:05:34,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:34,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 877 transitions. [2022-11-16 11:05:34,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.72727272727273) internal successors, (877), 11 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:34,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:34,436 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:34,436 INFO L175 Difference]: Start difference. First operand has 259 places, 420 transitions, 5041 flow. Second operand 11 states and 877 transitions. [2022-11-16 11:05:34,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 665 transitions, 8247 flow [2022-11-16 11:05:34,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 665 transitions, 7897 flow, removed 30 selfloop flow, removed 5 redundant places. [2022-11-16 11:05:34,688 INFO L231 Difference]: Finished difference. Result has 269 places, 442 transitions, 5399 flow [2022-11-16 11:05:34,689 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4747, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5399, PETRI_PLACES=269, PETRI_TRANSITIONS=442} [2022-11-16 11:05:34,690 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 164 predicate places. [2022-11-16 11:05:34,690 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 442 transitions, 5399 flow [2022-11-16 11:05:34,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:34,691 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:34,691 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:05:34,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:05:34,692 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:34,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:34,693 INFO L85 PathProgramCache]: Analyzing trace with hash -501421375, now seen corresponding path program 7 times [2022-11-16 11:05:34,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:34,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782968742] [2022-11-16 11:05:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:34,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:36,376 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:36,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:36,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782968742] [2022-11-16 11:05:36,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782968742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:36,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:36,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:05:36,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639761127] [2022-11-16 11:05:36,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:36,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:05:36,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:36,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:05:36,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:05:36,382 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:05:36,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 442 transitions, 5399 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:36,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:36,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:05:36,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:39,196 INFO L130 PetriNetUnfolder]: 1080/3203 cut-off events. [2022-11-16 11:05:39,196 INFO L131 PetriNetUnfolder]: For 23378/23416 co-relation queries the response was YES. [2022-11-16 11:05:39,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15864 conditions, 3203 events. 1080/3203 cut-off events. For 23378/23416 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 24855 event pairs, 253 based on Foata normal form. 27/3206 useless extension candidates. Maximal degree in co-relation 15792. Up to 1630 conditions per place. [2022-11-16 11:05:39,256 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 258 selfloop transitions, 166 changer transitions 23/536 dead transitions. [2022-11-16 11:05:39,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 536 transitions, 7184 flow [2022-11-16 11:05:39,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:05:39,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:05:39,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 944 transitions. [2022-11-16 11:05:39,267 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6850507982583455 [2022-11-16 11:05:39,267 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 944 transitions. [2022-11-16 11:05:39,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 944 transitions. [2022-11-16 11:05:39,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:39,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 944 transitions. [2022-11-16 11:05:39,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.61538461538461) internal successors, (944), 13 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:39,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:39,280 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:39,282 INFO L175 Difference]: Start difference. First operand has 269 places, 442 transitions, 5399 flow. Second operand 13 states and 944 transitions. [2022-11-16 11:05:39,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 536 transitions, 7184 flow [2022-11-16 11:05:39,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 536 transitions, 7079 flow, removed 31 selfloop flow, removed 3 redundant places. [2022-11-16 11:05:39,768 INFO L231 Difference]: Finished difference. Result has 285 places, 462 transitions, 6081 flow [2022-11-16 11:05:39,769 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=5296, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6081, PETRI_PLACES=285, PETRI_TRANSITIONS=462} [2022-11-16 11:05:39,770 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 180 predicate places. [2022-11-16 11:05:39,771 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 462 transitions, 6081 flow [2022-11-16 11:05:39,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:39,771 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:39,772 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:05:39,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:05:39,772 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:39,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:39,773 INFO L85 PathProgramCache]: Analyzing trace with hash -673886140, now seen corresponding path program 1 times [2022-11-16 11:05:39,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:39,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611756141] [2022-11-16 11:05:39,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:39,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:41,429 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:41,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:41,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611756141] [2022-11-16 11:05:41,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611756141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:41,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:41,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:05:41,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349999768] [2022-11-16 11:05:41,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:41,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:05:41,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:41,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:05:41,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:05:41,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 106 [2022-11-16 11:05:41,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 462 transitions, 6081 flow. Second operand has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:41,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:41,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 106 [2022-11-16 11:05:41,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:44,527 INFO L130 PetriNetUnfolder]: 1101/3338 cut-off events. [2022-11-16 11:05:44,528 INFO L131 PetriNetUnfolder]: For 27776/27783 co-relation queries the response was YES. [2022-11-16 11:05:44,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16876 conditions, 3338 events. 1101/3338 cut-off events. For 27776/27783 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 26116 event pairs, 124 based on Foata normal form. 6/3331 useless extension candidates. Maximal degree in co-relation 16797. Up to 951 conditions per place. [2022-11-16 11:05:44,566 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 474 selfloop transitions, 115 changer transitions 46/728 dead transitions. [2022-11-16 11:05:44,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 728 transitions, 9825 flow [2022-11-16 11:05:44,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:05:44,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 11:05:44,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1167 transitions. [2022-11-16 11:05:44,571 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6880896226415094 [2022-11-16 11:05:44,571 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1167 transitions. [2022-11-16 11:05:44,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1167 transitions. [2022-11-16 11:05:44,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:44,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1167 transitions. [2022-11-16 11:05:44,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 72.9375) internal successors, (1167), 16 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:44,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:44,581 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:44,582 INFO L175 Difference]: Start difference. First operand has 285 places, 462 transitions, 6081 flow. Second operand 16 states and 1167 transitions. [2022-11-16 11:05:44,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 728 transitions, 9825 flow [2022-11-16 11:05:44,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 728 transitions, 9577 flow, removed 83 selfloop flow, removed 3 redundant places. [2022-11-16 11:05:44,922 INFO L231 Difference]: Finished difference. Result has 306 places, 509 transitions, 6889 flow [2022-11-16 11:05:44,923 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=5884, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6889, PETRI_PLACES=306, PETRI_TRANSITIONS=509} [2022-11-16 11:05:44,924 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 201 predicate places. [2022-11-16 11:05:44,924 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 509 transitions, 6889 flow [2022-11-16 11:05:44,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:44,925 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:44,925 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:05:44,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:05:44,926 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:44,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:44,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1045153177, now seen corresponding path program 8 times [2022-11-16 11:05:44,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:44,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326522607] [2022-11-16 11:05:44,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:44,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:46,736 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:46,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:46,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326522607] [2022-11-16 11:05:46,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326522607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:46,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:46,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:05:46,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089039878] [2022-11-16 11:05:46,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:46,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:05:46,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:46,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:05:46,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:05:46,740 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:05:46,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 509 transitions, 6889 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:46,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:46,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:05:46,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:50,156 INFO L130 PetriNetUnfolder]: 1070/3180 cut-off events. [2022-11-16 11:05:50,156 INFO L131 PetriNetUnfolder]: For 28799/28838 co-relation queries the response was YES. [2022-11-16 11:05:50,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16843 conditions, 3180 events. 1070/3180 cut-off events. For 28799/28838 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 24800 event pairs, 219 based on Foata normal form. 28/3183 useless extension candidates. Maximal degree in co-relation 16756. Up to 1621 conditions per place. [2022-11-16 11:05:50,250 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 298 selfloop transitions, 190 changer transitions 23/600 dead transitions. [2022-11-16 11:05:50,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 600 transitions, 8952 flow [2022-11-16 11:05:50,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:05:50,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:05:50,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 997 transitions. [2022-11-16 11:05:50,255 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.671832884097035 [2022-11-16 11:05:50,256 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 997 transitions. [2022-11-16 11:05:50,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 997 transitions. [2022-11-16 11:05:50,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:50,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 997 transitions. [2022-11-16 11:05:50,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 71.21428571428571) internal successors, (997), 14 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:50,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:50,266 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:50,267 INFO L175 Difference]: Start difference. First operand has 306 places, 509 transitions, 6889 flow. Second operand 14 states and 997 transitions. [2022-11-16 11:05:50,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 600 transitions, 8952 flow [2022-11-16 11:05:50,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 600 transitions, 8747 flow, removed 20 selfloop flow, removed 4 redundant places. [2022-11-16 11:05:50,560 INFO L231 Difference]: Finished difference. Result has 319 places, 534 transitions, 7742 flow [2022-11-16 11:05:50,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=6711, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7742, PETRI_PLACES=319, PETRI_TRANSITIONS=534} [2022-11-16 11:05:50,562 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 214 predicate places. [2022-11-16 11:05:50,562 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 534 transitions, 7742 flow [2022-11-16 11:05:50,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:50,563 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:50,563 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:05:50,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:05:50,564 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:50,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:50,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1233118821, now seen corresponding path program 9 times [2022-11-16 11:05:50,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:50,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068701650] [2022-11-16 11:05:50,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:50,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:52,792 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:52,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:52,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068701650] [2022-11-16 11:05:52,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068701650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:52,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:52,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:05:52,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694043981] [2022-11-16 11:05:52,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:52,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:05:52,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:52,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:05:52,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:05:52,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:05:52,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 534 transitions, 7742 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:52,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:52,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:05:52,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:56,670 INFO L130 PetriNetUnfolder]: 1070/3176 cut-off events. [2022-11-16 11:05:56,670 INFO L131 PetriNetUnfolder]: For 32398/32437 co-relation queries the response was YES. [2022-11-16 11:05:56,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17520 conditions, 3176 events. 1070/3176 cut-off events. For 32398/32437 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24707 event pairs, 132 based on Foata normal form. 28/3179 useless extension candidates. Maximal degree in co-relation 17426. Up to 943 conditions per place. [2022-11-16 11:05:56,728 INFO L137 encePairwiseOnDemand]: 85/106 looper letters, 436 selfloop transitions, 151 changer transitions 30/706 dead transitions. [2022-11-16 11:05:56,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 706 transitions, 10438 flow [2022-11-16 11:05:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:05:56,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:05:56,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 874 transitions. [2022-11-16 11:05:56,743 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7495711835334476 [2022-11-16 11:05:56,744 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 874 transitions. [2022-11-16 11:05:56,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 874 transitions. [2022-11-16 11:05:56,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:56,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 874 transitions. [2022-11-16 11:05:56,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.45454545454545) internal successors, (874), 11 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:56,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:56,757 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:56,757 INFO L175 Difference]: Start difference. First operand has 319 places, 534 transitions, 7742 flow. Second operand 11 states and 874 transitions. [2022-11-16 11:05:56,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 706 transitions, 10438 flow [2022-11-16 11:05:57,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 706 transitions, 10236 flow, removed 79 selfloop flow, removed 2 redundant places. [2022-11-16 11:05:57,086 INFO L231 Difference]: Finished difference. Result has 332 places, 545 transitions, 8200 flow [2022-11-16 11:05:57,087 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7543, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8200, PETRI_PLACES=332, PETRI_TRANSITIONS=545} [2022-11-16 11:05:57,088 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 227 predicate places. [2022-11-16 11:05:57,088 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 545 transitions, 8200 flow [2022-11-16 11:05:57,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:57,089 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:57,089 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:05:57,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:05:57,090 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:05:57,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:57,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1180980767, now seen corresponding path program 10 times [2022-11-16 11:05:57,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:57,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536130433] [2022-11-16 11:05:57,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:57,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:05:58,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:58,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536130433] [2022-11-16 11:05:58,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536130433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:58,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:58,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:05:58,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149278464] [2022-11-16 11:05:58,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:58,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:05:58,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:58,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:05:58,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:05:58,878 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:05:58,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 545 transitions, 8200 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:58,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:58,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:05:58,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:02,160 INFO L130 PetriNetUnfolder]: 1071/3200 cut-off events. [2022-11-16 11:06:02,161 INFO L131 PetriNetUnfolder]: For 36053/36091 co-relation queries the response was YES. [2022-11-16 11:06:02,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18146 conditions, 3200 events. 1071/3200 cut-off events. For 36053/36091 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 24887 event pairs, 193 based on Foata normal form. 28/3195 useless extension candidates. Maximal degree in co-relation 18048. Up to 943 conditions per place. [2022-11-16 11:06:02,221 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 453 selfloop transitions, 139 changer transitions 26/707 dead transitions. [2022-11-16 11:06:02,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 707 transitions, 10927 flow [2022-11-16 11:06:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:06:02,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:06:02,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 852 transitions. [2022-11-16 11:06:02,224 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7307032590051458 [2022-11-16 11:06:02,225 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 852 transitions. [2022-11-16 11:06:02,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 852 transitions. [2022-11-16 11:06:02,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:02,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 852 transitions. [2022-11-16 11:06:02,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 77.45454545454545) internal successors, (852), 11 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:02,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:02,232 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:02,232 INFO L175 Difference]: Start difference. First operand has 332 places, 545 transitions, 8200 flow. Second operand 11 states and 852 transitions. [2022-11-16 11:06:02,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 707 transitions, 10927 flow [2022-11-16 11:06:02,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 707 transitions, 10700 flow, removed 40 selfloop flow, removed 5 redundant places. [2022-11-16 11:06:02,629 INFO L231 Difference]: Finished difference. Result has 341 places, 555 transitions, 8591 flow [2022-11-16 11:06:02,630 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8010, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8591, PETRI_PLACES=341, PETRI_TRANSITIONS=555} [2022-11-16 11:06:02,631 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 236 predicate places. [2022-11-16 11:06:02,631 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 555 transitions, 8591 flow [2022-11-16 11:06:02,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:02,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:02,632 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:06:02,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:06:02,633 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:06:02,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1641501999, now seen corresponding path program 11 times [2022-11-16 11:06:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:02,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412834902] [2022-11-16 11:06:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:02,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:04,210 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:06:04,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:04,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412834902] [2022-11-16 11:06:04,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412834902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:04,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:04,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:06:04,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294555894] [2022-11-16 11:06:04,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:04,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:06:04,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:04,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:06:04,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:06:04,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:06:04,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 555 transitions, 8591 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:04,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:04,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:06:04,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:07,439 INFO L130 PetriNetUnfolder]: 1070/3203 cut-off events. [2022-11-16 11:06:07,440 INFO L131 PetriNetUnfolder]: For 37502/37540 co-relation queries the response was YES. [2022-11-16 11:06:07,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18365 conditions, 3203 events. 1070/3203 cut-off events. For 37502/37540 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 24955 event pairs, 188 based on Foata normal form. 28/3200 useless extension candidates. Maximal degree in co-relation 18264. Up to 943 conditions per place. [2022-11-16 11:06:07,534 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 447 selfloop transitions, 149 changer transitions 27/712 dead transitions. [2022-11-16 11:06:07,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 712 transitions, 11138 flow [2022-11-16 11:06:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:06:07,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:06:07,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 860 transitions. [2022-11-16 11:06:07,537 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7375643224699828 [2022-11-16 11:06:07,537 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 860 transitions. [2022-11-16 11:06:07,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 860 transitions. [2022-11-16 11:06:07,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:07,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 860 transitions. [2022-11-16 11:06:07,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.18181818181819) internal successors, (860), 11 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:07,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:07,544 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:07,545 INFO L175 Difference]: Start difference. First operand has 341 places, 555 transitions, 8591 flow. Second operand 11 states and 860 transitions. [2022-11-16 11:06:07,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 712 transitions, 11138 flow [2022-11-16 11:06:07,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 712 transitions, 10927 flow, removed 15 selfloop flow, removed 5 redundant places. [2022-11-16 11:06:07,928 INFO L231 Difference]: Finished difference. Result has 349 places, 559 transitions, 8851 flow [2022-11-16 11:06:07,929 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8382, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8851, PETRI_PLACES=349, PETRI_TRANSITIONS=559} [2022-11-16 11:06:07,929 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 244 predicate places. [2022-11-16 11:06:07,930 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 559 transitions, 8851 flow [2022-11-16 11:06:07,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:07,931 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:07,931 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:06:07,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:06:07,931 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:06:07,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:07,932 INFO L85 PathProgramCache]: Analyzing trace with hash 812752821, now seen corresponding path program 12 times [2022-11-16 11:06:07,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:07,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306789868] [2022-11-16 11:06:07,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:07,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:09,192 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:06:09,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:09,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306789868] [2022-11-16 11:06:09,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306789868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:09,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:09,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:06:09,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426164267] [2022-11-16 11:06:09,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:09,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:06:09,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:09,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:06:09,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:06:09,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:06:09,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 559 transitions, 8851 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:09,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:09,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:06:09,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:12,009 INFO L130 PetriNetUnfolder]: 1075/3201 cut-off events. [2022-11-16 11:06:12,009 INFO L131 PetriNetUnfolder]: For 39720/39758 co-relation queries the response was YES. [2022-11-16 11:06:12,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18678 conditions, 3201 events. 1075/3201 cut-off events. For 39720/39758 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 25104 event pairs, 247 based on Foata normal form. 28/3200 useless extension candidates. Maximal degree in co-relation 18574. Up to 1645 conditions per place. [2022-11-16 11:06:12,046 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 332 selfloop transitions, 195 changer transitions 22/638 dead transitions. [2022-11-16 11:06:12,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 638 transitions, 10678 flow [2022-11-16 11:06:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:06:12,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:06:12,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 751 transitions. [2022-11-16 11:06:12,049 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7084905660377359 [2022-11-16 11:06:12,049 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 751 transitions. [2022-11-16 11:06:12,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 751 transitions. [2022-11-16 11:06:12,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:12,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 751 transitions. [2022-11-16 11:06:12,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.1) internal successors, (751), 10 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:12,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:12,056 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:12,056 INFO L175 Difference]: Start difference. First operand has 349 places, 559 transitions, 8851 flow. Second operand 10 states and 751 transitions. [2022-11-16 11:06:12,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 638 transitions, 10678 flow [2022-11-16 11:06:12,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 638 transitions, 10443 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-16 11:06:12,459 INFO L231 Difference]: Finished difference. Result has 356 places, 567 transitions, 9191 flow [2022-11-16 11:06:12,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8617, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9191, PETRI_PLACES=356, PETRI_TRANSITIONS=567} [2022-11-16 11:06:12,460 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 251 predicate places. [2022-11-16 11:06:12,460 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 567 transitions, 9191 flow [2022-11-16 11:06:12,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:12,460 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:12,461 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:06:12,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:06:12,461 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:06:12,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:12,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2013931571, now seen corresponding path program 13 times [2022-11-16 11:06:12,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:12,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82424364] [2022-11-16 11:06:12,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:12,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:06:13,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:13,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82424364] [2022-11-16 11:06:13,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82424364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:13,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:13,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:06:13,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465709841] [2022-11-16 11:06:13,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:13,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:06:13,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:13,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:06:13,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:06:13,737 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:06:13,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 567 transitions, 9191 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:13,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:13,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:06:13,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:16,264 INFO L130 PetriNetUnfolder]: 1085/3229 cut-off events. [2022-11-16 11:06:16,265 INFO L131 PetriNetUnfolder]: For 42826/42865 co-relation queries the response was YES. [2022-11-16 11:06:16,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19129 conditions, 3229 events. 1085/3229 cut-off events. For 42826/42865 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 25288 event pairs, 219 based on Foata normal form. 29/3224 useless extension candidates. Maximal degree in co-relation 19021. Up to 1638 conditions per place. [2022-11-16 11:06:16,338 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 339 selfloop transitions, 197 changer transitions 21/646 dead transitions. [2022-11-16 11:06:16,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 646 transitions, 11060 flow [2022-11-16 11:06:16,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:06:16,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:06:16,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 741 transitions. [2022-11-16 11:06:16,341 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6990566037735849 [2022-11-16 11:06:16,342 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 741 transitions. [2022-11-16 11:06:16,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 741 transitions. [2022-11-16 11:06:16,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:16,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 741 transitions. [2022-11-16 11:06:16,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.1) internal successors, (741), 10 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:16,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:16,348 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:16,349 INFO L175 Difference]: Start difference. First operand has 356 places, 567 transitions, 9191 flow. Second operand 10 states and 741 transitions. [2022-11-16 11:06:16,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 646 transitions, 11060 flow [2022-11-16 11:06:16,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 646 transitions, 10693 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-11-16 11:06:16,794 INFO L231 Difference]: Finished difference. Result has 365 places, 580 transitions, 9496 flow [2022-11-16 11:06:16,795 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8834, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9496, PETRI_PLACES=365, PETRI_TRANSITIONS=580} [2022-11-16 11:06:16,796 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 260 predicate places. [2022-11-16 11:06:16,797 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 580 transitions, 9496 flow [2022-11-16 11:06:16,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:16,797 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:16,798 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:06:16,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:06:16,798 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:06:16,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:16,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1929394253, now seen corresponding path program 14 times [2022-11-16 11:06:16,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:16,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699459022] [2022-11-16 11:06:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:16,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:06:18,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:18,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699459022] [2022-11-16 11:06:18,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699459022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:18,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:18,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:06:18,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780785580] [2022-11-16 11:06:18,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:18,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:06:18,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:18,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:06:18,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:06:18,243 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:06:18,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 580 transitions, 9496 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:18,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:18,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:06:18,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:21,260 INFO L130 PetriNetUnfolder]: 1090/3240 cut-off events. [2022-11-16 11:06:21,260 INFO L131 PetriNetUnfolder]: For 44290/44328 co-relation queries the response was YES. [2022-11-16 11:06:21,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19426 conditions, 3240 events. 1090/3240 cut-off events. For 44290/44328 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 25466 event pairs, 264 based on Foata normal form. 28/3234 useless extension candidates. Maximal degree in co-relation 19313. Up to 1644 conditions per place. [2022-11-16 11:06:21,334 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 329 selfloop transitions, 215 changer transitions 21/654 dead transitions. [2022-11-16 11:06:21,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 654 transitions, 11388 flow [2022-11-16 11:06:21,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:06:21,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:06:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1000 transitions. [2022-11-16 11:06:21,337 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6738544474393531 [2022-11-16 11:06:21,337 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1000 transitions. [2022-11-16 11:06:21,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1000 transitions. [2022-11-16 11:06:21,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:21,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1000 transitions. [2022-11-16 11:06:21,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 71.42857142857143) internal successors, (1000), 14 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:21,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:21,345 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:21,345 INFO L175 Difference]: Start difference. First operand has 365 places, 580 transitions, 9496 flow. Second operand 14 states and 1000 transitions. [2022-11-16 11:06:21,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 654 transitions, 11388 flow [2022-11-16 11:06:21,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 654 transitions, 11048 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-11-16 11:06:21,786 INFO L231 Difference]: Finished difference. Result has 379 places, 591 transitions, 9893 flow [2022-11-16 11:06:21,786 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9165, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=204, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9893, PETRI_PLACES=379, PETRI_TRANSITIONS=591} [2022-11-16 11:06:21,787 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 274 predicate places. [2022-11-16 11:06:21,787 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 591 transitions, 9893 flow [2022-11-16 11:06:21,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:21,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:21,788 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:06:21,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:06:21,788 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:06:21,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:21,789 INFO L85 PathProgramCache]: Analyzing trace with hash 215586857, now seen corresponding path program 15 times [2022-11-16 11:06:21,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:21,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397381900] [2022-11-16 11:06:21,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:21,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:23,049 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:06:23,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:23,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397381900] [2022-11-16 11:06:23,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397381900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:23,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:23,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:06:23,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147635008] [2022-11-16 11:06:23,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:23,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:06:23,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:23,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:06:23,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:06:23,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:06:23,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 591 transitions, 9893 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:23,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:23,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:06:23,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:25,943 INFO L130 PetriNetUnfolder]: 1090/3244 cut-off events. [2022-11-16 11:06:25,944 INFO L131 PetriNetUnfolder]: For 45368/45407 co-relation queries the response was YES. [2022-11-16 11:06:25,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19532 conditions, 3244 events. 1090/3244 cut-off events. For 45368/45407 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 25490 event pairs, 193 based on Foata normal form. 29/3255 useless extension candidates. Maximal degree in co-relation 19414. Up to 1675 conditions per place. [2022-11-16 11:06:26,008 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 339 selfloop transitions, 219 changer transitions 20/667 dead transitions. [2022-11-16 11:06:26,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 667 transitions, 11666 flow [2022-11-16 11:06:26,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:06:26,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:06:26,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 825 transitions. [2022-11-16 11:06:26,013 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7075471698113207 [2022-11-16 11:06:26,013 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 825 transitions. [2022-11-16 11:06:26,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 825 transitions. [2022-11-16 11:06:26,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:26,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 825 transitions. [2022-11-16 11:06:26,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:26,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:26,020 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:26,020 INFO L175 Difference]: Start difference. First operand has 379 places, 591 transitions, 9893 flow. Second operand 11 states and 825 transitions. [2022-11-16 11:06:26,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 667 transitions, 11666 flow [2022-11-16 11:06:26,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 667 transitions, 11262 flow, removed 10 selfloop flow, removed 9 redundant places. [2022-11-16 11:06:26,521 INFO L231 Difference]: Finished difference. Result has 382 places, 593 transitions, 9982 flow [2022-11-16 11:06:26,522 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9491, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9982, PETRI_PLACES=382, PETRI_TRANSITIONS=593} [2022-11-16 11:06:26,523 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 277 predicate places. [2022-11-16 11:06:26,523 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 593 transitions, 9982 flow [2022-11-16 11:06:26,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:26,523 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:26,524 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:06:26,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:06:26,524 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:06:26,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:26,525 INFO L85 PathProgramCache]: Analyzing trace with hash -680757553, now seen corresponding path program 16 times [2022-11-16 11:06:26,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:26,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541132512] [2022-11-16 11:06:26,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:26,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:06:27,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:27,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541132512] [2022-11-16 11:06:27,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541132512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:27,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:27,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:06:27,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997555301] [2022-11-16 11:06:27,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:27,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:06:27,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:27,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:06:27,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:06:27,823 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:06:27,824 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 593 transitions, 9982 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:27,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:27,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:06:27,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:30,979 INFO L130 PetriNetUnfolder]: 1087/3268 cut-off events. [2022-11-16 11:06:30,980 INFO L131 PetriNetUnfolder]: For 45202/45240 co-relation queries the response was YES. [2022-11-16 11:06:31,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19670 conditions, 3268 events. 1087/3268 cut-off events. For 45202/45240 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 25671 event pairs, 257 based on Foata normal form. 28/3264 useless extension candidates. Maximal degree in co-relation 19551. Up to 1664 conditions per place. [2022-11-16 11:06:31,059 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 344 selfloop transitions, 211 changer transitions 22/666 dead transitions. [2022-11-16 11:06:31,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 666 transitions, 11807 flow [2022-11-16 11:06:31,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:06:31,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:06:31,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 945 transitions. [2022-11-16 11:06:31,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6857764876632801 [2022-11-16 11:06:31,062 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 945 transitions. [2022-11-16 11:06:31,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 945 transitions. [2022-11-16 11:06:31,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:31,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 945 transitions. [2022-11-16 11:06:31,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.6923076923077) internal successors, (945), 13 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:31,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:31,069 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:31,070 INFO L175 Difference]: Start difference. First operand has 382 places, 593 transitions, 9982 flow. Second operand 13 states and 945 transitions. [2022-11-16 11:06:31,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 666 transitions, 11807 flow [2022-11-16 11:06:31,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 666 transitions, 11366 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-11-16 11:06:31,620 INFO L231 Difference]: Finished difference. Result has 390 places, 599 transitions, 10170 flow [2022-11-16 11:06:31,621 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9553, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10170, PETRI_PLACES=390, PETRI_TRANSITIONS=599} [2022-11-16 11:06:31,621 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 285 predicate places. [2022-11-16 11:06:31,622 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 599 transitions, 10170 flow [2022-11-16 11:06:31,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:31,623 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:31,623 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:06:31,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:06:31,623 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:06:31,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:31,624 INFO L85 PathProgramCache]: Analyzing trace with hash -435883879, now seen corresponding path program 17 times [2022-11-16 11:06:31,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:31,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962276331] [2022-11-16 11:06:31,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:31,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:32,862 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:06:32,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:32,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962276331] [2022-11-16 11:06:32,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962276331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:32,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:32,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:06:32,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718236494] [2022-11-16 11:06:32,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:32,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:06:32,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:32,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:06:32,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:06:32,866 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:06:32,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 599 transitions, 10170 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:32,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:32,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:06:32,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:36,006 INFO L130 PetriNetUnfolder]: 1086/3263 cut-off events. [2022-11-16 11:06:36,007 INFO L131 PetriNetUnfolder]: For 45943/45981 co-relation queries the response was YES. [2022-11-16 11:06:36,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19627 conditions, 3263 events. 1086/3263 cut-off events. For 45943/45981 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 25648 event pairs, 275 based on Foata normal form. 28/3252 useless extension candidates. Maximal degree in co-relation 19506. Up to 1644 conditions per place. [2022-11-16 11:06:36,049 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 338 selfloop transitions, 218 changer transitions 21/666 dead transitions. [2022-11-16 11:06:36,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 666 transitions, 11968 flow [2022-11-16 11:06:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:06:36,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:06:36,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 936 transitions. [2022-11-16 11:06:36,051 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6792452830188679 [2022-11-16 11:06:36,051 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 936 transitions. [2022-11-16 11:06:36,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 936 transitions. [2022-11-16 11:06:36,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:36,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 936 transitions. [2022-11-16 11:06:36,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.0) internal successors, (936), 13 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,057 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,057 INFO L175 Difference]: Start difference. First operand has 390 places, 599 transitions, 10170 flow. Second operand 13 states and 936 transitions. [2022-11-16 11:06:36,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 666 transitions, 11968 flow [2022-11-16 11:06:36,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 666 transitions, 11552 flow, removed 9 selfloop flow, removed 8 redundant places. [2022-11-16 11:06:36,684 INFO L231 Difference]: Finished difference. Result has 398 places, 607 transitions, 10457 flow [2022-11-16 11:06:36,686 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9766, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10457, PETRI_PLACES=398, PETRI_TRANSITIONS=607} [2022-11-16 11:06:36,687 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 293 predicate places. [2022-11-16 11:06:36,687 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 607 transitions, 10457 flow [2022-11-16 11:06:36,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,687 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:36,687 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:06:36,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:06:36,688 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:06:36,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:36,688 INFO L85 PathProgramCache]: Analyzing trace with hash 656178297, now seen corresponding path program 1 times [2022-11-16 11:06:36,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:36,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175763940] [2022-11-16 11:06:36,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:36,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:40,801 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:06:40,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:40,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175763940] [2022-11-16 11:06:40,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175763940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:40,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:40,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:06:40,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538927060] [2022-11-16 11:06:40,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:40,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:06:40,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:40,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:06:40,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:06:40,805 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:06:40,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 607 transitions, 10457 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:40,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:40,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:06:40,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:45,054 INFO L130 PetriNetUnfolder]: 1142/3465 cut-off events. [2022-11-16 11:06:45,055 INFO L131 PetriNetUnfolder]: For 50167/50193 co-relation queries the response was YES. [2022-11-16 11:06:45,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20660 conditions, 3465 events. 1142/3465 cut-off events. For 50167/50193 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 27971 event pairs, 158 based on Foata normal form. 5/3432 useless extension candidates. Maximal degree in co-relation 20536. Up to 870 conditions per place. [2022-11-16 11:06:45,146 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 667 selfloop transitions, 119 changer transitions 17/906 dead transitions. [2022-11-16 11:06:45,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 906 transitions, 15133 flow [2022-11-16 11:06:45,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:06:45,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:06:45,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1185 transitions. [2022-11-16 11:06:45,149 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7452830188679245 [2022-11-16 11:06:45,149 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1185 transitions. [2022-11-16 11:06:45,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1185 transitions. [2022-11-16 11:06:45,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:45,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1185 transitions. [2022-11-16 11:06:45,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.0) internal successors, (1185), 15 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:45,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:45,156 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:45,156 INFO L175 Difference]: Start difference. First operand has 398 places, 607 transitions, 10457 flow. Second operand 15 states and 1185 transitions. [2022-11-16 11:06:45,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 906 transitions, 15133 flow [2022-11-16 11:06:45,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 906 transitions, 14780 flow, removed 13 selfloop flow, removed 7 redundant places. [2022-11-16 11:06:45,833 INFO L231 Difference]: Finished difference. Result has 416 places, 684 transitions, 11732 flow [2022-11-16 11:06:45,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=10140, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11732, PETRI_PLACES=416, PETRI_TRANSITIONS=684} [2022-11-16 11:06:45,835 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 311 predicate places. [2022-11-16 11:06:45,835 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 684 transitions, 11732 flow [2022-11-16 11:06:45,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:45,836 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:45,836 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:06:45,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 11:06:45,837 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:06:45,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:45,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1657790239, now seen corresponding path program 2 times [2022-11-16 11:06:45,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:45,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000973019] [2022-11-16 11:06:45,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:45,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:48,900 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:06:48,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:48,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000973019] [2022-11-16 11:06:48,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000973019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:48,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:48,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:06:48,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418752820] [2022-11-16 11:06:48,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:48,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:06:48,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:48,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:06:48,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:06:48,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:06:48,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 684 transitions, 11732 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:48,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:48,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:06:48,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:52,506 INFO L130 PetriNetUnfolder]: 1206/3659 cut-off events. [2022-11-16 11:06:52,507 INFO L131 PetriNetUnfolder]: For 58007/58054 co-relation queries the response was YES. [2022-11-16 11:06:52,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22628 conditions, 3659 events. 1206/3659 cut-off events. For 58007/58054 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 30034 event pairs, 139 based on Foata normal form. 20/3645 useless extension candidates. Maximal degree in co-relation 22495. Up to 1732 conditions per place. [2022-11-16 11:06:52,605 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 587 selfloop transitions, 144 changer transitions 24/858 dead transitions. [2022-11-16 11:06:52,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 858 transitions, 15776 flow [2022-11-16 11:06:52,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:06:52,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:06:52,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 993 transitions. [2022-11-16 11:06:52,608 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7206095791001451 [2022-11-16 11:06:52,608 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 993 transitions. [2022-11-16 11:06:52,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 993 transitions. [2022-11-16 11:06:52,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:52,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 993 transitions. [2022-11-16 11:06:52,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.38461538461539) internal successors, (993), 13 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:52,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:52,612 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:52,612 INFO L175 Difference]: Start difference. First operand has 416 places, 684 transitions, 11732 flow. Second operand 13 states and 993 transitions. [2022-11-16 11:06:52,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 858 transitions, 15776 flow [2022-11-16 11:06:53,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 858 transitions, 15539 flow, removed 25 selfloop flow, removed 2 redundant places. [2022-11-16 11:06:53,392 INFO L231 Difference]: Finished difference. Result has 432 places, 725 transitions, 13208 flow [2022-11-16 11:06:53,393 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=11554, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13208, PETRI_PLACES=432, PETRI_TRANSITIONS=725} [2022-11-16 11:06:53,398 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 327 predicate places. [2022-11-16 11:06:53,399 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 725 transitions, 13208 flow [2022-11-16 11:06:53,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:53,399 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:53,400 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:06:53,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 11:06:53,401 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:06:53,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:53,402 INFO L85 PathProgramCache]: Analyzing trace with hash 573418173, now seen corresponding path program 3 times [2022-11-16 11:06:53,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:53,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864907284] [2022-11-16 11:06:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:53,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:56,410 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:06:56,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:56,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864907284] [2022-11-16 11:06:56,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864907284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:56,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:56,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:06:56,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631881470] [2022-11-16 11:06:56,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:56,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:06:56,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:56,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:06:56,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:06:56,414 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:06:56,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 725 transitions, 13208 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:56,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:56,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:06:56,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:00,191 INFO L130 PetriNetUnfolder]: 1325/3961 cut-off events. [2022-11-16 11:07:00,191 INFO L131 PetriNetUnfolder]: For 73542/73604 co-relation queries the response was YES. [2022-11-16 11:07:00,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25325 conditions, 3961 events. 1325/3961 cut-off events. For 73542/73604 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 33133 event pairs, 167 based on Foata normal form. 30/3956 useless extension candidates. Maximal degree in co-relation 25186. Up to 1778 conditions per place. [2022-11-16 11:07:00,304 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 610 selfloop transitions, 195 changer transitions 9/917 dead transitions. [2022-11-16 11:07:00,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 917 transitions, 17757 flow [2022-11-16 11:07:00,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:07:00,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:07:00,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1065 transitions. [2022-11-16 11:07:00,307 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.717654986522911 [2022-11-16 11:07:00,307 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1065 transitions. [2022-11-16 11:07:00,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1065 transitions. [2022-11-16 11:07:00,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:00,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1065 transitions. [2022-11-16 11:07:00,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 76.07142857142857) internal successors, (1065), 14 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:00,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:00,312 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:00,313 INFO L175 Difference]: Start difference. First operand has 432 places, 725 transitions, 13208 flow. Second operand 14 states and 1065 transitions. [2022-11-16 11:07:00,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 917 transitions, 17757 flow [2022-11-16 11:07:01,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 917 transitions, 17649 flow, removed 27 selfloop flow, removed 4 redundant places. [2022-11-16 11:07:01,431 INFO L231 Difference]: Finished difference. Result has 450 places, 783 transitions, 15444 flow [2022-11-16 11:07:01,432 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=13112, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15444, PETRI_PLACES=450, PETRI_TRANSITIONS=783} [2022-11-16 11:07:01,433 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 345 predicate places. [2022-11-16 11:07:01,433 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 783 transitions, 15444 flow [2022-11-16 11:07:01,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:01,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:01,434 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:07:01,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 11:07:01,435 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:07:01,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:01,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1999922211, now seen corresponding path program 4 times [2022-11-16 11:07:01,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:01,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509992437] [2022-11-16 11:07:01,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:01,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:07:03,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:03,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509992437] [2022-11-16 11:07:03,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509992437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:03,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:03,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:07:03,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190972076] [2022-11-16 11:07:03,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:03,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:07:03,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:03,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:07:03,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:07:03,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:07:03,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 783 transitions, 15444 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:03,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:03,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:07:03,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:08,177 INFO L130 PetriNetUnfolder]: 1430/4286 cut-off events. [2022-11-16 11:07:08,177 INFO L131 PetriNetUnfolder]: For 97431/97531 co-relation queries the response was YES. [2022-11-16 11:07:08,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28577 conditions, 4286 events. 1430/4286 cut-off events. For 97431/97531 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 36659 event pairs, 152 based on Foata normal form. 33/4279 useless extension candidates. Maximal degree in co-relation 28428. Up to 1737 conditions per place. [2022-11-16 11:07:08,292 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 623 selfloop transitions, 254 changer transitions 6/986 dead transitions. [2022-11-16 11:07:08,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 986 transitions, 20423 flow [2022-11-16 11:07:08,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:07:08,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:07:08,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 999 transitions. [2022-11-16 11:07:08,295 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7249637155297532 [2022-11-16 11:07:08,295 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 999 transitions. [2022-11-16 11:07:08,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 999 transitions. [2022-11-16 11:07:08,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:08,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 999 transitions. [2022-11-16 11:07:08,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.84615384615384) internal successors, (999), 13 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:08,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:08,300 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:08,300 INFO L175 Difference]: Start difference. First operand has 450 places, 783 transitions, 15444 flow. Second operand 13 states and 999 transitions. [2022-11-16 11:07:08,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 986 transitions, 20423 flow [2022-11-16 11:07:09,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 986 transitions, 20279 flow, removed 46 selfloop flow, removed 3 redundant places. [2022-11-16 11:07:09,324 INFO L231 Difference]: Finished difference. Result has 470 places, 853 transitions, 18196 flow [2022-11-16 11:07:09,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=15315, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=783, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=18196, PETRI_PLACES=470, PETRI_TRANSITIONS=853} [2022-11-16 11:07:09,325 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 365 predicate places. [2022-11-16 11:07:09,325 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 853 transitions, 18196 flow [2022-11-16 11:07:09,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:09,326 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:09,326 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:07:09,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 11:07:09,326 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:07:09,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:09,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1232998115, now seen corresponding path program 5 times [2022-11-16 11:07:09,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:09,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760607357] [2022-11-16 11:07:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:09,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:12,386 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:07:12,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:12,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760607357] [2022-11-16 11:07:12,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760607357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:12,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:12,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:07:12,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202916721] [2022-11-16 11:07:12,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:12,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:07:12,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:12,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:07:12,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:07:12,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:07:12,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 853 transitions, 18196 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:12,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:12,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:07:12,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:19,349 INFO L130 PetriNetUnfolder]: 1628/4811 cut-off events. [2022-11-16 11:07:19,350 INFO L131 PetriNetUnfolder]: For 136287/136410 co-relation queries the response was YES. [2022-11-16 11:07:19,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33920 conditions, 4811 events. 1628/4811 cut-off events. For 136287/136410 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 42056 event pairs, 209 based on Foata normal form. 57/4826 useless extension candidates. Maximal degree in co-relation 33760. Up to 1954 conditions per place. [2022-11-16 11:07:19,511 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 696 selfloop transitions, 317 changer transitions 6/1122 dead transitions. [2022-11-16 11:07:19,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 1122 transitions, 25174 flow [2022-11-16 11:07:19,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:07:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:07:19,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1366 transitions. [2022-11-16 11:07:19,514 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7159329140461216 [2022-11-16 11:07:19,514 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1366 transitions. [2022-11-16 11:07:19,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1366 transitions. [2022-11-16 11:07:19,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:19,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1366 transitions. [2022-11-16 11:07:19,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 75.88888888888889) internal successors, (1366), 18 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:19,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:19,519 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:19,519 INFO L175 Difference]: Start difference. First operand has 470 places, 853 transitions, 18196 flow. Second operand 18 states and 1366 transitions. [2022-11-16 11:07:19,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 1122 transitions, 25174 flow [2022-11-16 11:07:21,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1122 transitions, 24812 flow, removed 170 selfloop flow, removed 1 redundant places. [2022-11-16 11:07:21,538 INFO L231 Difference]: Finished difference. Result has 499 places, 953 transitions, 21957 flow [2022-11-16 11:07:21,540 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=17988, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=594, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=21957, PETRI_PLACES=499, PETRI_TRANSITIONS=953} [2022-11-16 11:07:21,541 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 394 predicate places. [2022-11-16 11:07:21,541 INFO L495 AbstractCegarLoop]: Abstraction has has 499 places, 953 transitions, 21957 flow [2022-11-16 11:07:21,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:21,542 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:21,542 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:07:21,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 11:07:21,542 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:07:21,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:21,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1544493265, now seen corresponding path program 6 times [2022-11-16 11:07:21,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:21,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11478002] [2022-11-16 11:07:21,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:21,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:07:24,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:24,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11478002] [2022-11-16 11:07:24,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11478002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:24,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:24,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:07:24,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163710476] [2022-11-16 11:07:24,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:24,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:07:24,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:24,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:07:24,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:07:24,973 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:07:24,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 953 transitions, 21957 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:24,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:24,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:07:24,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:32,004 INFO L130 PetriNetUnfolder]: 1683/4963 cut-off events. [2022-11-16 11:07:32,004 INFO L131 PetriNetUnfolder]: For 153299/153417 co-relation queries the response was YES. [2022-11-16 11:07:32,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36189 conditions, 4963 events. 1683/4963 cut-off events. For 153299/153417 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 43775 event pairs, 202 based on Foata normal form. 42/4963 useless extension candidates. Maximal degree in co-relation 36016. Up to 1826 conditions per place. [2022-11-16 11:07:32,170 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 695 selfloop transitions, 374 changer transitions 5/1177 dead transitions. [2022-11-16 11:07:32,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 1177 transitions, 27493 flow [2022-11-16 11:07:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:07:32,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:07:32,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1497 transitions. [2022-11-16 11:07:32,174 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7061320754716981 [2022-11-16 11:07:32,174 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1497 transitions. [2022-11-16 11:07:32,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1497 transitions. [2022-11-16 11:07:32,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:32,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1497 transitions. [2022-11-16 11:07:32,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 74.85) internal successors, (1497), 20 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:32,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:32,183 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:32,183 INFO L175 Difference]: Start difference. First operand has 499 places, 953 transitions, 21957 flow. Second operand 20 states and 1497 transitions. [2022-11-16 11:07:32,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 1177 transitions, 27493 flow [2022-11-16 11:07:34,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 1177 transitions, 27316 flow, removed 67 selfloop flow, removed 2 redundant places. [2022-11-16 11:07:34,460 INFO L231 Difference]: Finished difference. Result has 530 places, 1011 transitions, 24509 flow [2022-11-16 11:07:34,461 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=21801, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=953, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=318, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=24509, PETRI_PLACES=530, PETRI_TRANSITIONS=1011} [2022-11-16 11:07:34,461 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 425 predicate places. [2022-11-16 11:07:34,462 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 1011 transitions, 24509 flow [2022-11-16 11:07:34,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,462 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:34,462 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:07:34,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-16 11:07:34,462 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:07:34,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:34,463 INFO L85 PathProgramCache]: Analyzing trace with hash -768199011, now seen corresponding path program 7 times [2022-11-16 11:07:34,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:34,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334293385] [2022-11-16 11:07:34,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:34,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:07:37,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:37,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334293385] [2022-11-16 11:07:37,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334293385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:37,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:37,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:07:37,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581808058] [2022-11-16 11:07:37,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:37,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:07:37,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:37,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:07:37,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:07:37,105 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:07:37,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 1011 transitions, 24509 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:37,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:37,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:07:37,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:43,802 INFO L130 PetriNetUnfolder]: 1775/5208 cut-off events. [2022-11-16 11:07:43,802 INFO L131 PetriNetUnfolder]: For 179592/179738 co-relation queries the response was YES. [2022-11-16 11:07:43,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39787 conditions, 5208 events. 1775/5208 cut-off events. For 179592/179738 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 46393 event pairs, 226 based on Foata normal form. 56/5218 useless extension candidates. Maximal degree in co-relation 39600. Up to 2030 conditions per place. [2022-11-16 11:07:44,007 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 724 selfloop transitions, 392 changer transitions 5/1224 dead transitions. [2022-11-16 11:07:44,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 1224 transitions, 30275 flow [2022-11-16 11:07:44,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:07:44,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-16 11:07:44,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1285 transitions. [2022-11-16 11:07:44,010 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7130965593784684 [2022-11-16 11:07:44,011 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1285 transitions. [2022-11-16 11:07:44,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1285 transitions. [2022-11-16 11:07:44,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:44,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1285 transitions. [2022-11-16 11:07:44,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 75.58823529411765) internal successors, (1285), 17 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:44,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:44,016 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:44,017 INFO L175 Difference]: Start difference. First operand has 530 places, 1011 transitions, 24509 flow. Second operand 17 states and 1285 transitions. [2022-11-16 11:07:44,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 1224 transitions, 30275 flow [2022-11-16 11:07:46,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 1224 transitions, 29510 flow, removed 71 selfloop flow, removed 5 redundant places. [2022-11-16 11:07:46,881 INFO L231 Difference]: Finished difference. Result has 550 places, 1069 transitions, 26493 flow [2022-11-16 11:07:46,882 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=23776, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1011, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=339, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=26493, PETRI_PLACES=550, PETRI_TRANSITIONS=1069} [2022-11-16 11:07:46,882 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 445 predicate places. [2022-11-16 11:07:46,882 INFO L495 AbstractCegarLoop]: Abstraction has has 550 places, 1069 transitions, 26493 flow [2022-11-16 11:07:46,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:46,883 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:46,883 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:07:46,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 11:07:46,883 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:07:46,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:46,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1375644565, now seen corresponding path program 8 times [2022-11-16 11:07:46,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:46,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384157625] [2022-11-16 11:07:46,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:46,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:07:49,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:49,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384157625] [2022-11-16 11:07:49,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384157625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:49,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:49,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:07:49,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361583759] [2022-11-16 11:07:49,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:49,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:07:49,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:49,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:07:49,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:07:49,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:07:49,858 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 1069 transitions, 26493 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:49,858 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:49,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:07:49,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:57,388 INFO L130 PetriNetUnfolder]: 1855/5412 cut-off events. [2022-11-16 11:07:57,388 INFO L131 PetriNetUnfolder]: For 198166/198314 co-relation queries the response was YES. [2022-11-16 11:07:57,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42726 conditions, 5412 events. 1855/5412 cut-off events. For 198166/198314 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 48697 event pairs, 238 based on Foata normal form. 53/5418 useless extension candidates. Maximal degree in co-relation 42531. Up to 2070 conditions per place. [2022-11-16 11:07:57,652 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 765 selfloop transitions, 419 changer transitions 5/1292 dead transitions. [2022-11-16 11:07:57,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 1292 transitions, 32946 flow [2022-11-16 11:07:57,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:07:57,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:07:57,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1381 transitions. [2022-11-16 11:07:57,655 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7237945492662474 [2022-11-16 11:07:57,655 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1381 transitions. [2022-11-16 11:07:57,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1381 transitions. [2022-11-16 11:07:57,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:57,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1381 transitions. [2022-11-16 11:07:57,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 76.72222222222223) internal successors, (1381), 18 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:57,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:57,662 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:57,662 INFO L175 Difference]: Start difference. First operand has 550 places, 1069 transitions, 26493 flow. Second operand 18 states and 1381 transitions. [2022-11-16 11:07:57,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 1292 transitions, 32946 flow [2022-11-16 11:08:01,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 1292 transitions, 32375 flow, removed 58 selfloop flow, removed 4 redundant places. [2022-11-16 11:08:01,169 INFO L231 Difference]: Finished difference. Result has 572 places, 1123 transitions, 29169 flow [2022-11-16 11:08:01,170 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=25993, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=367, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=29169, PETRI_PLACES=572, PETRI_TRANSITIONS=1123} [2022-11-16 11:08:01,170 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 467 predicate places. [2022-11-16 11:08:01,171 INFO L495 AbstractCegarLoop]: Abstraction has has 572 places, 1123 transitions, 29169 flow [2022-11-16 11:08:01,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:01,171 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:01,171 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:08:01,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-16 11:08:01,172 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:08:01,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:01,172 INFO L85 PathProgramCache]: Analyzing trace with hash 647978635, now seen corresponding path program 9 times [2022-11-16 11:08:01,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:01,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304406758] [2022-11-16 11:08:01,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:01,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:03,429 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:08:03,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:03,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304406758] [2022-11-16 11:08:03,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304406758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:03,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:03,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:08:03,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887089938] [2022-11-16 11:08:03,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:03,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:08:03,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:03,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:08:03,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:08:03,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:08:03,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 1123 transitions, 29169 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:03,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:03,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:08:03,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:10,105 INFO L130 PetriNetUnfolder]: 1847/5412 cut-off events. [2022-11-16 11:08:10,105 INFO L131 PetriNetUnfolder]: For 202894/203054 co-relation queries the response was YES. [2022-11-16 11:08:10,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43803 conditions, 5412 events. 1847/5412 cut-off events. For 202894/203054 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 48820 event pairs, 255 based on Foata normal form. 70/5436 useless extension candidates. Maximal degree in co-relation 43599. Up to 2070 conditions per place. [2022-11-16 11:08:10,384 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 762 selfloop transitions, 382 changer transitions 5/1252 dead transitions. [2022-11-16 11:08:10,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1252 transitions, 33047 flow [2022-11-16 11:08:10,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:08:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:08:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1002 transitions. [2022-11-16 11:08:10,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7271407837445574 [2022-11-16 11:08:10,387 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1002 transitions. [2022-11-16 11:08:10,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1002 transitions. [2022-11-16 11:08:10,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:10,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1002 transitions. [2022-11-16 11:08:10,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.07692307692308) internal successors, (1002), 13 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:10,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:10,391 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:10,391 INFO L175 Difference]: Start difference. First operand has 572 places, 1123 transitions, 29169 flow. Second operand 13 states and 1002 transitions. [2022-11-16 11:08:10,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 1252 transitions, 33047 flow [2022-11-16 11:08:14,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 1252 transitions, 32459 flow, removed 58 selfloop flow, removed 6 redundant places. [2022-11-16 11:08:14,220 INFO L231 Difference]: Finished difference. Result has 580 places, 1130 transitions, 29677 flow [2022-11-16 11:08:14,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=28581, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=377, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=745, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=29677, PETRI_PLACES=580, PETRI_TRANSITIONS=1130} [2022-11-16 11:08:14,222 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 475 predicate places. [2022-11-16 11:08:14,222 INFO L495 AbstractCegarLoop]: Abstraction has has 580 places, 1130 transitions, 29677 flow [2022-11-16 11:08:14,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:14,223 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:14,223 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:08:14,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-16 11:08:14,223 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:08:14,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:14,224 INFO L85 PathProgramCache]: Analyzing trace with hash -991346151, now seen corresponding path program 10 times [2022-11-16 11:08:14,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:14,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348825004] [2022-11-16 11:08:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:14,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:17,387 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:08:17,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:17,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348825004] [2022-11-16 11:08:17,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348825004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:17,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:17,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:08:17,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878471272] [2022-11-16 11:08:17,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:17,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:08:17,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:17,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:08:17,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:08:17,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:08:17,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 1130 transitions, 29677 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:17,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:17,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:08:17,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:25,157 INFO L130 PetriNetUnfolder]: 1858/5422 cut-off events. [2022-11-16 11:08:25,157 INFO L131 PetriNetUnfolder]: For 211633/211779 co-relation queries the response was YES. [2022-11-16 11:08:25,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44621 conditions, 5422 events. 1858/5422 cut-off events. For 211633/211779 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 48865 event pairs, 236 based on Foata normal form. 54/5432 useless extension candidates. Maximal degree in co-relation 44415. Up to 2075 conditions per place. [2022-11-16 11:08:25,420 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 759 selfloop transitions, 426 changer transitions 5/1293 dead transitions. [2022-11-16 11:08:25,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 1293 transitions, 34331 flow [2022-11-16 11:08:25,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:08:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:08:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1362 transitions. [2022-11-16 11:08:25,423 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7138364779874213 [2022-11-16 11:08:25,423 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1362 transitions. [2022-11-16 11:08:25,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1362 transitions. [2022-11-16 11:08:25,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:25,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1362 transitions. [2022-11-16 11:08:25,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 75.66666666666667) internal successors, (1362), 18 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:25,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:25,432 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:25,432 INFO L175 Difference]: Start difference. First operand has 580 places, 1130 transitions, 29677 flow. Second operand 18 states and 1362 transitions. [2022-11-16 11:08:25,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 1293 transitions, 34331 flow [2022-11-16 11:08:29,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 1293 transitions, 33948 flow, removed 41 selfloop flow, removed 8 redundant places. [2022-11-16 11:08:29,519 INFO L231 Difference]: Finished difference. Result has 594 places, 1147 transitions, 30930 flow [2022-11-16 11:08:29,520 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=29313, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=409, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=713, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=30930, PETRI_PLACES=594, PETRI_TRANSITIONS=1147} [2022-11-16 11:08:29,520 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 489 predicate places. [2022-11-16 11:08:29,521 INFO L495 AbstractCegarLoop]: Abstraction has has 594 places, 1147 transitions, 30930 flow [2022-11-16 11:08:29,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:29,522 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:29,522 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:08:29,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-16 11:08:29,522 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:08:29,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1393457647, now seen corresponding path program 11 times [2022-11-16 11:08:29,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:29,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544356947] [2022-11-16 11:08:29,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:29,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:08:32,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:32,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544356947] [2022-11-16 11:08:32,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544356947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:32,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:32,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:08:32,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885558804] [2022-11-16 11:08:32,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:32,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:08:32,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:32,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:08:32,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:08:32,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:08:32,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 1147 transitions, 30930 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:32,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:32,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:08:32,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:41,155 INFO L130 PetriNetUnfolder]: 2012/5860 cut-off events. [2022-11-16 11:08:41,155 INFO L131 PetriNetUnfolder]: For 244032/244195 co-relation queries the response was YES. [2022-11-16 11:08:41,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49083 conditions, 5860 events. 2012/5860 cut-off events. For 244032/244195 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 53724 event pairs, 235 based on Foata normal form. 59/5872 useless extension candidates. Maximal degree in co-relation 48873. Up to 1932 conditions per place. [2022-11-16 11:08:41,463 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 804 selfloop transitions, 494 changer transitions 4/1405 dead transitions. [2022-11-16 11:08:41,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 1405 transitions, 38277 flow [2022-11-16 11:08:41,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:08:41,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:08:41,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1517 transitions. [2022-11-16 11:08:41,466 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.715566037735849 [2022-11-16 11:08:41,466 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1517 transitions. [2022-11-16 11:08:41,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1517 transitions. [2022-11-16 11:08:41,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:41,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1517 transitions. [2022-11-16 11:08:41,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 75.85) internal successors, (1517), 20 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:41,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:41,474 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:41,474 INFO L175 Difference]: Start difference. First operand has 594 places, 1147 transitions, 30930 flow. Second operand 20 states and 1517 transitions. [2022-11-16 11:08:41,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 613 places, 1405 transitions, 38277 flow [2022-11-16 11:08:45,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 604 places, 1405 transitions, 37483 flow, removed 51 selfloop flow, removed 9 redundant places. [2022-11-16 11:08:45,865 INFO L231 Difference]: Finished difference. Result has 616 places, 1225 transitions, 34110 flow [2022-11-16 11:08:45,866 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=30248, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=420, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=34110, PETRI_PLACES=616, PETRI_TRANSITIONS=1225} [2022-11-16 11:08:45,866 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 511 predicate places. [2022-11-16 11:08:45,867 INFO L495 AbstractCegarLoop]: Abstraction has has 616 places, 1225 transitions, 34110 flow [2022-11-16 11:08:45,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:45,867 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:45,867 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:08:45,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-16 11:08:45,867 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:08:45,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:45,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1708014443, now seen corresponding path program 12 times [2022-11-16 11:08:45,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:45,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204162330] [2022-11-16 11:08:45,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:45,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:48,927 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:08:48,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:48,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204162330] [2022-11-16 11:08:48,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204162330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:48,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:48,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:08:48,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963795979] [2022-11-16 11:08:48,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:48,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:08:48,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:48,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:08:48,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:08:48,933 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:08:48,934 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 1225 transitions, 34110 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:48,934 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:48,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:08:48,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:57,929 INFO L130 PetriNetUnfolder]: 2091/6057 cut-off events. [2022-11-16 11:08:57,929 INFO L131 PetriNetUnfolder]: For 271553/271716 co-relation queries the response was YES. [2022-11-16 11:08:58,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52449 conditions, 6057 events. 2091/6057 cut-off events. For 271553/271716 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 56015 event pairs, 248 based on Foata normal form. 57/6065 useless extension candidates. Maximal degree in co-relation 52227. Up to 1972 conditions per place. [2022-11-16 11:08:58,155 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 803 selfloop transitions, 539 changer transitions 4/1449 dead transitions. [2022-11-16 11:08:58,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 1449 transitions, 41123 flow [2022-11-16 11:08:58,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:08:58,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:08:58,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1512 transitions. [2022-11-16 11:08:58,158 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7132075471698113 [2022-11-16 11:08:58,159 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1512 transitions. [2022-11-16 11:08:58,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1512 transitions. [2022-11-16 11:08:58,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:58,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1512 transitions. [2022-11-16 11:08:58,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 75.6) internal successors, (1512), 20 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:58,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:58,165 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:58,165 INFO L175 Difference]: Start difference. First operand has 616 places, 1225 transitions, 34110 flow. Second operand 20 states and 1512 transitions. [2022-11-16 11:08:58,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 1449 transitions, 41123 flow [2022-11-16 11:09:03,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 1449 transitions, 40512 flow, removed 78 selfloop flow, removed 5 redundant places. [2022-11-16 11:09:03,636 INFO L231 Difference]: Finished difference. Result has 640 places, 1284 transitions, 37290 flow [2022-11-16 11:09:03,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=33551, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=483, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=721, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=37290, PETRI_PLACES=640, PETRI_TRANSITIONS=1284} [2022-11-16 11:09:03,639 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 535 predicate places. [2022-11-16 11:09:03,639 INFO L495 AbstractCegarLoop]: Abstraction has has 640 places, 1284 transitions, 37290 flow [2022-11-16 11:09:03,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:03,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:09:03,640 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:09:03,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-16 11:09:03,641 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:09:03,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:03,641 INFO L85 PathProgramCache]: Analyzing trace with hash 892851201, now seen corresponding path program 13 times [2022-11-16 11:09:03,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:03,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741146544] [2022-11-16 11:09:03,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:03,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:07,079 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:09:07,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:07,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741146544] [2022-11-16 11:09:07,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741146544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:07,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:07,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:09:07,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410296983] [2022-11-16 11:09:07,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:07,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:09:07,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:07,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:09:07,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:09:07,083 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:09:07,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 640 places, 1284 transitions, 37290 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:07,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:09:07,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:09:07,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:09:16,562 INFO L130 PetriNetUnfolder]: 2103/6075 cut-off events. [2022-11-16 11:09:16,562 INFO L131 PetriNetUnfolder]: For 294414/294579 co-relation queries the response was YES. [2022-11-16 11:09:16,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54178 conditions, 6075 events. 2103/6075 cut-off events. For 294414/294579 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 56308 event pairs, 262 based on Foata normal form. 58/6082 useless extension candidates. Maximal degree in co-relation 53946. Up to 1979 conditions per place. [2022-11-16 11:09:16,795 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 786 selfloop transitions, 558 changer transitions 4/1451 dead transitions. [2022-11-16 11:09:16,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 1451 transitions, 42553 flow [2022-11-16 11:09:16,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:09:16,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:09:16,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1368 transitions. [2022-11-16 11:09:16,799 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7169811320754716 [2022-11-16 11:09:16,799 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1368 transitions. [2022-11-16 11:09:16,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1368 transitions. [2022-11-16 11:09:16,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:09:16,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1368 transitions. [2022-11-16 11:09:16,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:16,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:16,808 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:16,808 INFO L175 Difference]: Start difference. First operand has 640 places, 1284 transitions, 37290 flow. Second operand 18 states and 1368 transitions. [2022-11-16 11:09:16,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 657 places, 1451 transitions, 42553 flow [2022-11-16 11:09:22,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 649 places, 1451 transitions, 41731 flow, removed 74 selfloop flow, removed 8 redundant places. [2022-11-16 11:09:22,376 INFO L231 Difference]: Finished difference. Result has 655 places, 1305 transitions, 38536 flow [2022-11-16 11:09:22,378 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=36490, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=538, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=739, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=38536, PETRI_PLACES=655, PETRI_TRANSITIONS=1305} [2022-11-16 11:09:22,379 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 550 predicate places. [2022-11-16 11:09:22,379 INFO L495 AbstractCegarLoop]: Abstraction has has 655 places, 1305 transitions, 38536 flow [2022-11-16 11:09:22,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:22,380 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:09:22,380 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:09:22,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-16 11:09:22,381 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:09:22,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:22,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1432364191, now seen corresponding path program 14 times [2022-11-16 11:09:22,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:22,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537551893] [2022-11-16 11:09:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:22,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:24,733 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:09:24,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:24,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537551893] [2022-11-16 11:09:24,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537551893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:24,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:24,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:09:24,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624575463] [2022-11-16 11:09:24,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:24,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:09:24,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:24,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:09:24,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:09:24,737 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:09:24,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 1305 transitions, 38536 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:24,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:09:24,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:09:24,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:09:33,807 INFO L130 PetriNetUnfolder]: 2120/6118 cut-off events. [2022-11-16 11:09:33,807 INFO L131 PetriNetUnfolder]: For 313137/313304 co-relation queries the response was YES. [2022-11-16 11:09:34,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55464 conditions, 6118 events. 2120/6118 cut-off events. For 313137/313304 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 56735 event pairs, 255 based on Foata normal form. 65/6134 useless extension candidates. Maximal degree in co-relation 55227. Up to 1991 conditions per place. [2022-11-16 11:09:34,125 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 830 selfloop transitions, 537 changer transitions 4/1474 dead transitions. [2022-11-16 11:09:34,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 1474 transitions, 44255 flow [2022-11-16 11:09:34,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:09:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:09:34,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1105 transitions. [2022-11-16 11:09:34,128 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7446091644204852 [2022-11-16 11:09:34,128 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1105 transitions. [2022-11-16 11:09:34,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1105 transitions. [2022-11-16 11:09:34,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:09:34,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1105 transitions. [2022-11-16 11:09:34,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 78.92857142857143) internal successors, (1105), 14 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:34,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:34,135 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:34,135 INFO L175 Difference]: Start difference. First operand has 655 places, 1305 transitions, 38536 flow. Second operand 14 states and 1105 transitions. [2022-11-16 11:09:34,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 668 places, 1474 transitions, 44255 flow [2022-11-16 11:09:41,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 1474 transitions, 43334 flow, removed 98 selfloop flow, removed 8 redundant places. [2022-11-16 11:09:41,123 INFO L231 Difference]: Finished difference. Result has 663 places, 1331 transitions, 40081 flow [2022-11-16 11:09:41,124 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=37675, PETRI_DIFFERENCE_MINUEND_PLACES=647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=514, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=785, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=40081, PETRI_PLACES=663, PETRI_TRANSITIONS=1331} [2022-11-16 11:09:41,125 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 558 predicate places. [2022-11-16 11:09:41,125 INFO L495 AbstractCegarLoop]: Abstraction has has 663 places, 1331 transitions, 40081 flow [2022-11-16 11:09:41,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:41,126 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:09:41,126 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:09:41,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-16 11:09:41,127 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:09:41,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:41,128 INFO L85 PathProgramCache]: Analyzing trace with hash 278366623, now seen corresponding path program 15 times [2022-11-16 11:09:41,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:41,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696663526] [2022-11-16 11:09:41,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:41,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:09:42,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:42,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696663526] [2022-11-16 11:09:42,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696663526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:42,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:42,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:09:42,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065292624] [2022-11-16 11:09:42,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:42,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:09:42,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:42,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:09:42,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:09:42,326 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:09:42,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 663 places, 1331 transitions, 40081 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:42,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:09:42,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:09:42,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:09:51,344 INFO L130 PetriNetUnfolder]: 2159/6246 cut-off events. [2022-11-16 11:09:51,344 INFO L131 PetriNetUnfolder]: For 323498/323690 co-relation queries the response was YES. [2022-11-16 11:09:51,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56634 conditions, 6246 events. 2159/6246 cut-off events. For 323498/323690 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 57942 event pairs, 335 based on Foata normal form. 74/6267 useless extension candidates. Maximal degree in co-relation 56394. Up to 2413 conditions per place. [2022-11-16 11:09:51,601 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 952 selfloop transitions, 437 changer transitions 17/1509 dead transitions. [2022-11-16 11:09:51,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 674 places, 1509 transitions, 45234 flow [2022-11-16 11:09:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:09:51,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:09:51,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 953 transitions. [2022-11-16 11:09:51,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7492138364779874 [2022-11-16 11:09:51,604 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 953 transitions. [2022-11-16 11:09:51,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 953 transitions. [2022-11-16 11:09:51,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:09:51,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 953 transitions. [2022-11-16 11:09:51,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 79.41666666666667) internal successors, (953), 12 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:51,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:51,608 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:51,608 INFO L175 Difference]: Start difference. First operand has 663 places, 1331 transitions, 40081 flow. Second operand 12 states and 953 transitions. [2022-11-16 11:09:51,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 674 places, 1509 transitions, 45234 flow [2022-11-16 11:09:57,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 667 places, 1509 transitions, 44387 flow, removed 54 selfloop flow, removed 7 redundant places. [2022-11-16 11:09:57,949 INFO L231 Difference]: Finished difference. Result has 672 places, 1366 transitions, 41574 flow [2022-11-16 11:09:57,951 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=39278, PETRI_DIFFERENCE_MINUEND_PLACES=656, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=407, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=900, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=41574, PETRI_PLACES=672, PETRI_TRANSITIONS=1366} [2022-11-16 11:09:57,952 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 567 predicate places. [2022-11-16 11:09:57,952 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 1366 transitions, 41574 flow [2022-11-16 11:09:57,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:57,953 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:09:57,953 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:09:57,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-16 11:09:57,954 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:09:57,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:57,955 INFO L85 PathProgramCache]: Analyzing trace with hash -608344491, now seen corresponding path program 16 times [2022-11-16 11:09:57,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:57,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487178457] [2022-11-16 11:09:57,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:57,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:01,398 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:10:01,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:10:01,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487178457] [2022-11-16 11:10:01,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487178457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:10:01,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:10:01,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:10:01,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962267456] [2022-11-16 11:10:01,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:10:01,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:10:01,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:10:01,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:10:01,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:10:01,404 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:10:01,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 1366 transitions, 41574 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:01,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:10:01,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:10:01,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:10:12,311 INFO L130 PetriNetUnfolder]: 2282/6563 cut-off events. [2022-11-16 11:10:12,311 INFO L131 PetriNetUnfolder]: For 362566/362761 co-relation queries the response was YES. [2022-11-16 11:10:12,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60480 conditions, 6563 events. 2282/6563 cut-off events. For 362566/362761 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 61508 event pairs, 308 based on Foata normal form. 75/6585 useless extension candidates. Maximal degree in co-relation 60236. Up to 1737 conditions per place. [2022-11-16 11:10:12,580 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 943 selfloop transitions, 566 changer transitions 7/1619 dead transitions. [2022-11-16 11:10:12,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 685 places, 1619 transitions, 49135 flow [2022-11-16 11:10:12,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:10:12,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:10:12,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1128 transitions. [2022-11-16 11:10:12,585 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7601078167115903 [2022-11-16 11:10:12,586 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1128 transitions. [2022-11-16 11:10:12,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1128 transitions. [2022-11-16 11:10:12,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:10:12,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1128 transitions. [2022-11-16 11:10:12,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 80.57142857142857) internal successors, (1128), 14 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:12,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:12,593 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:12,593 INFO L175 Difference]: Start difference. First operand has 672 places, 1366 transitions, 41574 flow. Second operand 14 states and 1128 transitions. [2022-11-16 11:10:12,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 685 places, 1619 transitions, 49135 flow [2022-11-16 11:10:19,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 681 places, 1619 transitions, 48967 flow, removed 30 selfloop flow, removed 4 redundant places. [2022-11-16 11:10:19,638 INFO L231 Difference]: Finished difference. Result has 688 places, 1424 transitions, 45153 flow [2022-11-16 11:10:19,640 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=41423, PETRI_DIFFERENCE_MINUEND_PLACES=668, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=511, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=45153, PETRI_PLACES=688, PETRI_TRANSITIONS=1424} [2022-11-16 11:10:19,642 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 583 predicate places. [2022-11-16 11:10:19,643 INFO L495 AbstractCegarLoop]: Abstraction has has 688 places, 1424 transitions, 45153 flow [2022-11-16 11:10:19,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:19,644 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:10:19,644 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:10:19,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-16 11:10:19,644 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:10:19,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:10:19,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1327384409, now seen corresponding path program 1 times [2022-11-16 11:10:19,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:10:19,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443687946] [2022-11-16 11:10:19,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:10:19,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:10:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:20,871 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:10:20,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:10:20,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443687946] [2022-11-16 11:10:20,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443687946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:10:20,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:10:20,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:10:20,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934257804] [2022-11-16 11:10:20,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:10:20,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:10:20,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:10:20,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:10:20,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:10:20,875 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-16 11:10:20,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 688 places, 1424 transitions, 45153 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:20,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:10:20,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-16 11:10:20,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:10:31,176 INFO L130 PetriNetUnfolder]: 2523/6937 cut-off events. [2022-11-16 11:10:31,177 INFO L131 PetriNetUnfolder]: For 414199/414349 co-relation queries the response was YES. [2022-11-16 11:10:31,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66335 conditions, 6937 events. 2523/6937 cut-off events. For 414199/414349 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 64052 event pairs, 645 based on Foata normal form. 58/6914 useless extension candidates. Maximal degree in co-relation 66084. Up to 2935 conditions per place. [2022-11-16 11:10:31,465 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 1134 selfloop transitions, 356 changer transitions 43/1633 dead transitions. [2022-11-16 11:10:31,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 703 places, 1633 transitions, 52574 flow [2022-11-16 11:10:31,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:10:31,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 11:10:31,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1193 transitions. [2022-11-16 11:10:31,468 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7034198113207547 [2022-11-16 11:10:31,468 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1193 transitions. [2022-11-16 11:10:31,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1193 transitions. [2022-11-16 11:10:31,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:10:31,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1193 transitions. [2022-11-16 11:10:31,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 74.5625) internal successors, (1193), 16 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:31,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:31,474 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:31,475 INFO L175 Difference]: Start difference. First operand has 688 places, 1424 transitions, 45153 flow. Second operand 16 states and 1193 transitions. [2022-11-16 11:10:31,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 703 places, 1633 transitions, 52574 flow [2022-11-16 11:10:39,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 698 places, 1633 transitions, 51904 flow, removed 60 selfloop flow, removed 5 redundant places. [2022-11-16 11:10:39,814 INFO L231 Difference]: Finished difference. Result has 710 places, 1474 transitions, 46674 flow [2022-11-16 11:10:39,815 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=44543, PETRI_DIFFERENCE_MINUEND_PLACES=683, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=314, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1084, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=46674, PETRI_PLACES=710, PETRI_TRANSITIONS=1474} [2022-11-16 11:10:39,816 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 605 predicate places. [2022-11-16 11:10:39,816 INFO L495 AbstractCegarLoop]: Abstraction has has 710 places, 1474 transitions, 46674 flow [2022-11-16 11:10:39,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:39,816 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:10:39,816 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:10:39,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-16 11:10:39,817 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:10:39,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:10:39,817 INFO L85 PathProgramCache]: Analyzing trace with hash 585150715, now seen corresponding path program 17 times [2022-11-16 11:10:39,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:10:39,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961318399] [2022-11-16 11:10:39,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:10:39,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:10:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:42,923 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:10:42,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:10:42,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961318399] [2022-11-16 11:10:42,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961318399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:10:42,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:10:42,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:10:42,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515987489] [2022-11-16 11:10:42,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:10:42,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:10:42,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:10:42,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:10:42,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:10:42,927 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:10:42,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 710 places, 1474 transitions, 46674 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:42,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:10:42,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:10:42,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:10:54,150 INFO L130 PetriNetUnfolder]: 2410/6934 cut-off events. [2022-11-16 11:10:54,150 INFO L131 PetriNetUnfolder]: For 426941/427152 co-relation queries the response was YES. [2022-11-16 11:10:54,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68348 conditions, 6934 events. 2410/6934 cut-off events. For 426941/427152 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 65780 event pairs, 328 based on Foata normal form. 83/6963 useless extension candidates. Maximal degree in co-relation 68086. Up to 1792 conditions per place. [2022-11-16 11:10:54,444 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 992 selfloop transitions, 614 changer transitions 7/1717 dead transitions. [2022-11-16 11:10:54,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 718 places, 1717 transitions, 55039 flow [2022-11-16 11:10:54,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:10:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:10:54,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1128 transitions. [2022-11-16 11:10:54,447 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7601078167115903 [2022-11-16 11:10:54,447 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1128 transitions. [2022-11-16 11:10:54,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1128 transitions. [2022-11-16 11:10:54,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:10:54,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1128 transitions. [2022-11-16 11:10:54,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 80.57142857142857) internal successors, (1128), 14 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:54,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:54,452 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:10:54,452 INFO L175 Difference]: Start difference. First operand has 710 places, 1474 transitions, 46674 flow. Second operand 14 states and 1128 transitions. [2022-11-16 11:10:54,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 718 places, 1717 transitions, 55039 flow [2022-11-16 11:11:02,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 713 places, 1717 transitions, 54897 flow, removed 46 selfloop flow, removed 5 redundant places. [2022-11-16 11:11:02,708 INFO L231 Difference]: Finished difference. Result has 721 places, 1540 transitions, 50839 flow [2022-11-16 11:11:02,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=46542, PETRI_DIFFERENCE_MINUEND_PLACES=700, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=551, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=897, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=50839, PETRI_PLACES=721, PETRI_TRANSITIONS=1540} [2022-11-16 11:11:02,710 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 616 predicate places. [2022-11-16 11:11:02,710 INFO L495 AbstractCegarLoop]: Abstraction has has 721 places, 1540 transitions, 50839 flow [2022-11-16 11:11:02,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:02,711 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:02,711 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:11:02,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-16 11:11:02,711 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:11:02,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:02,711 INFO L85 PathProgramCache]: Analyzing trace with hash 411712873, now seen corresponding path program 18 times [2022-11-16 11:11:02,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:02,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362595160] [2022-11-16 11:11:02,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:02,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:05,444 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:11:05,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:05,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362595160] [2022-11-16 11:11:05,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362595160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:05,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:05,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:11:05,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339866952] [2022-11-16 11:11:05,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:05,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:11:05,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:05,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:11:05,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:11:05,447 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:11:05,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 721 places, 1540 transitions, 50839 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:05,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:05,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:11:05,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:17,167 INFO L130 PetriNetUnfolder]: 2532/7262 cut-off events. [2022-11-16 11:11:17,168 INFO L131 PetriNetUnfolder]: For 491862/492082 co-relation queries the response was YES. [2022-11-16 11:11:17,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74463 conditions, 7262 events. 2532/7262 cut-off events. For 491862/492082 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 69689 event pairs, 342 based on Foata normal form. 82/7286 useless extension candidates. Maximal degree in co-relation 74196. Up to 1832 conditions per place. [2022-11-16 11:11:17,485 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 1033 selfloop transitions, 648 changer transitions 8/1793 dead transitions. [2022-11-16 11:11:17,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 734 places, 1793 transitions, 59842 flow [2022-11-16 11:11:17,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:11:17,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:11:17,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1130 transitions. [2022-11-16 11:11:17,489 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.761455525606469 [2022-11-16 11:11:17,489 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1130 transitions. [2022-11-16 11:11:17,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1130 transitions. [2022-11-16 11:11:17,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:17,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1130 transitions. [2022-11-16 11:11:17,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 80.71428571428571) internal successors, (1130), 14 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) [2022-11-16 11:11:17,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:17,495 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:17,495 INFO L175 Difference]: Start difference. First operand has 721 places, 1540 transitions, 50839 flow. Second operand 14 states and 1130 transitions. [2022-11-16 11:11:17,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 734 places, 1793 transitions, 59842 flow [2022-11-16 11:11:27,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 731 places, 1793 transitions, 59201 flow, removed 70 selfloop flow, removed 3 redundant places. [2022-11-16 11:11:27,732 INFO L231 Difference]: Finished difference. Result has 740 places, 1610 transitions, 54900 flow [2022-11-16 11:11:27,734 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=50224, PETRI_DIFFERENCE_MINUEND_PLACES=718, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=581, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=54900, PETRI_PLACES=740, PETRI_TRANSITIONS=1610} [2022-11-16 11:11:27,734 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 635 predicate places. [2022-11-16 11:11:27,734 INFO L495 AbstractCegarLoop]: Abstraction has has 740 places, 1610 transitions, 54900 flow [2022-11-16 11:11:27,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:27,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:27,735 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:11:27,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-16 11:11:27,735 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:11:27,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:27,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1555498781, now seen corresponding path program 19 times [2022-11-16 11:11:27,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:27,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940936469] [2022-11-16 11:11:27,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:27,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:11:30,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:30,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940936469] [2022-11-16 11:11:30,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940936469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:30,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:30,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:11:30,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681758012] [2022-11-16 11:11:30,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:30,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:11:30,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:30,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:11:30,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:11:30,970 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:11:30,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 740 places, 1610 transitions, 54900 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:30,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:30,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:11:30,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:42,827 INFO L130 PetriNetUnfolder]: 2551/7296 cut-off events. [2022-11-16 11:11:42,827 INFO L131 PetriNetUnfolder]: For 532955/533184 co-relation queries the response was YES. [2022-11-16 11:11:43,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77234 conditions, 7296 events. 2551/7296 cut-off events. For 532955/533184 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 70089 event pairs, 323 based on Foata normal form. 93/7334 useless extension candidates. Maximal degree in co-relation 76958. Up to 1832 conditions per place. [2022-11-16 11:11:43,142 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 1014 selfloop transitions, 659 changer transitions 7/1784 dead transitions. [2022-11-16 11:11:43,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 752 places, 1784 transitions, 61420 flow [2022-11-16 11:11:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:11:43,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:11:43,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1049 transitions. [2022-11-16 11:11:43,145 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7612481857764877 [2022-11-16 11:11:43,145 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1049 transitions. [2022-11-16 11:11:43,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1049 transitions. [2022-11-16 11:11:43,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:43,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1049 transitions. [2022-11-16 11:11:43,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 80.6923076923077) internal successors, (1049), 13 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:43,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:43,150 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:43,151 INFO L175 Difference]: Start difference. First operand has 740 places, 1610 transitions, 54900 flow. Second operand 13 states and 1049 transitions. [2022-11-16 11:11:43,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 752 places, 1784 transitions, 61420 flow [2022-11-16 11:11:54,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 748 places, 1784 transitions, 61130 flow, removed 90 selfloop flow, removed 4 redundant places. [2022-11-16 11:11:54,673 INFO L231 Difference]: Finished difference. Result has 752 places, 1625 transitions, 56666 flow [2022-11-16 11:11:54,674 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=54610, PETRI_DIFFERENCE_MINUEND_PLACES=736, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=646, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=56666, PETRI_PLACES=752, PETRI_TRANSITIONS=1625} [2022-11-16 11:11:54,675 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 647 predicate places. [2022-11-16 11:11:54,675 INFO L495 AbstractCegarLoop]: Abstraction has has 752 places, 1625 transitions, 56666 flow [2022-11-16 11:11:54,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:54,675 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:54,676 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:11:54,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-16 11:11:54,676 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:11:54,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:54,676 INFO L85 PathProgramCache]: Analyzing trace with hash 363070285, now seen corresponding path program 20 times [2022-11-16 11:11:54,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:54,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974489007] [2022-11-16 11:11:54,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:54,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:58,595 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:11:58,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:58,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974489007] [2022-11-16 11:11:58,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974489007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:58,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:58,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:11:58,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768770429] [2022-11-16 11:11:58,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:58,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:11:58,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:58,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:11:58,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:11:58,601 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:11:58,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 752 places, 1625 transitions, 56666 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:11:58,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:58,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:11:58,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:11,290 INFO L130 PetriNetUnfolder]: 2549/7286 cut-off events. [2022-11-16 11:12:11,291 INFO L131 PetriNetUnfolder]: For 565918/566129 co-relation queries the response was YES. [2022-11-16 11:12:11,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78968 conditions, 7286 events. 2549/7286 cut-off events. For 565918/566129 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 69977 event pairs, 294 based on Foata normal form. 83/7318 useless extension candidates. Maximal degree in co-relation 78688. Up to 1832 conditions per place. [2022-11-16 11:12:11,620 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 994 selfloop transitions, 676 changer transitions 5/1779 dead transitions. [2022-11-16 11:12:11,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 764 places, 1779 transitions, 62762 flow [2022-11-16 11:12:11,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:12:11,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:12:11,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1040 transitions. [2022-11-16 11:12:11,622 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7547169811320755 [2022-11-16 11:12:11,622 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1040 transitions. [2022-11-16 11:12:11,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1040 transitions. [2022-11-16 11:12:11,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:11,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1040 transitions. [2022-11-16 11:12:11,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 80.0) internal successors, (1040), 13 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:11,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:11,625 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:11,625 INFO L175 Difference]: Start difference. First operand has 752 places, 1625 transitions, 56666 flow. Second operand 13 states and 1040 transitions. [2022-11-16 11:12:11,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 764 places, 1779 transitions, 62762 flow [2022-11-16 11:12:23,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 757 places, 1779 transitions, 61868 flow, removed 54 selfloop flow, removed 7 redundant places. [2022-11-16 11:12:23,770 INFO L231 Difference]: Finished difference. Result has 761 places, 1637 transitions, 57747 flow [2022-11-16 11:12:23,771 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=55776, PETRI_DIFFERENCE_MINUEND_PLACES=745, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1625, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=666, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=57747, PETRI_PLACES=761, PETRI_TRANSITIONS=1637} [2022-11-16 11:12:23,772 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 656 predicate places. [2022-11-16 11:12:23,772 INFO L495 AbstractCegarLoop]: Abstraction has has 761 places, 1637 transitions, 57747 flow [2022-11-16 11:12:23,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:23,773 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:23,773 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:12:23,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-16 11:12:23,774 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:12:23,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:23,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1811819993, now seen corresponding path program 21 times [2022-11-16 11:12:23,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:23,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823204403] [2022-11-16 11:12:23,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:23,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:25,893 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:12:25,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:25,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823204403] [2022-11-16 11:12:25,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823204403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:25,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:25,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:12:25,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532604933] [2022-11-16 11:12:25,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:25,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:12:25,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:25,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:12:25,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:12:25,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:12:25,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 761 places, 1637 transitions, 57747 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:25,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:25,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:12:25,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:38,638 INFO L130 PetriNetUnfolder]: 2560/7314 cut-off events. [2022-11-16 11:12:38,638 INFO L131 PetriNetUnfolder]: For 593575/593785 co-relation queries the response was YES. [2022-11-16 11:12:39,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80353 conditions, 7314 events. 2560/7314 cut-off events. For 593575/593785 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 70133 event pairs, 360 based on Foata normal form. 79/7334 useless extension candidates. Maximal degree in co-relation 80069. Up to 1832 conditions per place. [2022-11-16 11:12:39,316 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 1007 selfloop transitions, 684 changer transitions 5/1800 dead transitions. [2022-11-16 11:12:39,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 773 places, 1800 transitions, 64314 flow [2022-11-16 11:12:39,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:12:39,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:12:39,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1026 transitions. [2022-11-16 11:12:39,319 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7445573294629898 [2022-11-16 11:12:39,319 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1026 transitions. [2022-11-16 11:12:39,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1026 transitions. [2022-11-16 11:12:39,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:39,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1026 transitions. [2022-11-16 11:12:39,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 78.92307692307692) internal successors, (1026), 13 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:39,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:39,325 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:39,325 INFO L175 Difference]: Start difference. First operand has 761 places, 1637 transitions, 57747 flow. Second operand 13 states and 1026 transitions. [2022-11-16 11:12:39,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 773 places, 1800 transitions, 64314 flow [2022-11-16 11:12:50,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 764 places, 1800 transitions, 62968 flow, removed 50 selfloop flow, removed 9 redundant places. [2022-11-16 11:12:50,704 INFO L231 Difference]: Finished difference. Result has 770 places, 1666 transitions, 59160 flow [2022-11-16 11:12:50,706 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=56451, PETRI_DIFFERENCE_MINUEND_PLACES=752, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=659, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=59160, PETRI_PLACES=770, PETRI_TRANSITIONS=1666} [2022-11-16 11:12:50,706 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 665 predicate places. [2022-11-16 11:12:50,706 INFO L495 AbstractCegarLoop]: Abstraction has has 770 places, 1666 transitions, 59160 flow [2022-11-16 11:12:50,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:50,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:50,707 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:12:50,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-16 11:12:50,707 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:12:50,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:50,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2023471607, now seen corresponding path program 22 times [2022-11-16 11:12:50,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:50,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239256079] [2022-11-16 11:12:50,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:50,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:12:53,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:53,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239256079] [2022-11-16 11:12:53,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239256079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:53,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:53,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:12:53,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242615710] [2022-11-16 11:12:53,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:53,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:12:53,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:53,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:12:53,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:12:53,753 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:12:53,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 770 places, 1666 transitions, 59160 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:53,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:53,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:12:53,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:06,916 INFO L130 PetriNetUnfolder]: 2579/7352 cut-off events. [2022-11-16 11:13:06,916 INFO L131 PetriNetUnfolder]: For 611921/612135 co-relation queries the response was YES. [2022-11-16 11:13:07,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81863 conditions, 7352 events. 2579/7352 cut-off events. For 611921/612135 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 70474 event pairs, 370 based on Foata normal form. 81/7375 useless extension candidates. Maximal degree in co-relation 81573. Up to 1832 conditions per place. [2022-11-16 11:13:07,267 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 1060 selfloop transitions, 667 changer transitions 8/1839 dead transitions. [2022-11-16 11:13:07,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 782 places, 1839 transitions, 66008 flow [2022-11-16 11:13:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:13:07,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:13:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1051 transitions. [2022-11-16 11:13:07,269 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.762699564586357 [2022-11-16 11:13:07,270 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1051 transitions. [2022-11-16 11:13:07,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1051 transitions. [2022-11-16 11:13:07,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:07,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1051 transitions. [2022-11-16 11:13:07,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 80.84615384615384) internal successors, (1051), 13 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:07,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:07,273 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:07,273 INFO L175 Difference]: Start difference. First operand has 770 places, 1666 transitions, 59160 flow. Second operand 13 states and 1051 transitions. [2022-11-16 11:13:07,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 782 places, 1839 transitions, 66008 flow [2022-11-16 11:13:18,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 775 places, 1839 transitions, 64142 flow, removed 240 selfloop flow, removed 7 redundant places. [2022-11-16 11:13:18,465 INFO L231 Difference]: Finished difference. Result has 779 places, 1681 transitions, 59681 flow [2022-11-16 11:13:18,466 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=57534, PETRI_DIFFERENCE_MINUEND_PLACES=763, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=652, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1004, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=59681, PETRI_PLACES=779, PETRI_TRANSITIONS=1681} [2022-11-16 11:13:18,467 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 674 predicate places. [2022-11-16 11:13:18,467 INFO L495 AbstractCegarLoop]: Abstraction has has 779 places, 1681 transitions, 59681 flow [2022-11-16 11:13:18,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:18,467 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:18,468 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:13:18,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-16 11:13:18,468 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:13:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:18,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1283645173, now seen corresponding path program 23 times [2022-11-16 11:13:18,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:18,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748356185] [2022-11-16 11:13:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:18,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:21,120 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:13:21,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:21,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748356185] [2022-11-16 11:13:21,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748356185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:21,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:21,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:13:21,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630291937] [2022-11-16 11:13:21,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:21,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:13:21,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:21,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:13:21,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:13:21,123 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:13:21,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 1681 transitions, 59681 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:21,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:21,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:13:21,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:34,992 INFO L130 PetriNetUnfolder]: 2603/7396 cut-off events. [2022-11-16 11:13:34,992 INFO L131 PetriNetUnfolder]: For 620073/620282 co-relation queries the response was YES. [2022-11-16 11:13:35,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82088 conditions, 7396 events. 2603/7396 cut-off events. For 620073/620282 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 71034 event pairs, 307 based on Foata normal form. 89/7430 useless extension candidates. Maximal degree in co-relation 81794. Up to 1838 conditions per place. [2022-11-16 11:13:35,327 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 1061 selfloop transitions, 705 changer transitions 5/1875 dead transitions. [2022-11-16 11:13:35,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 793 places, 1875 transitions, 67783 flow [2022-11-16 11:13:35,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:13:35,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:13:35,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1167 transitions. [2022-11-16 11:13:35,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7339622641509433 [2022-11-16 11:13:35,330 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1167 transitions. [2022-11-16 11:13:35,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1167 transitions. [2022-11-16 11:13:35,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:35,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1167 transitions. [2022-11-16 11:13:35,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 77.8) internal successors, (1167), 15 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:35,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:35,334 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:35,334 INFO L175 Difference]: Start difference. First operand has 779 places, 1681 transitions, 59681 flow. Second operand 15 states and 1167 transitions. [2022-11-16 11:13:35,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 793 places, 1875 transitions, 67783 flow [2022-11-16 11:13:46,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 787 places, 1875 transitions, 66697 flow, removed 44 selfloop flow, removed 6 redundant places. [2022-11-16 11:13:47,023 INFO L231 Difference]: Finished difference. Result has 794 places, 1734 transitions, 62389 flow [2022-11-16 11:13:47,024 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=58637, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1681, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=657, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1005, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=62389, PETRI_PLACES=794, PETRI_TRANSITIONS=1734} [2022-11-16 11:13:47,024 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 689 predicate places. [2022-11-16 11:13:47,025 INFO L495 AbstractCegarLoop]: Abstraction has has 794 places, 1734 transitions, 62389 flow [2022-11-16 11:13:47,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:47,025 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:47,026 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2022-11-16 11:13:47,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-16 11:13:47,026 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:13:47,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:47,027 INFO L85 PathProgramCache]: Analyzing trace with hash 372806329, now seen corresponding path program 24 times [2022-11-16 11:13:47,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:47,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885988378] [2022-11-16 11:13:47,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:47,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:49,396 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:13:49,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:49,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885988378] [2022-11-16 11:13:49,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885988378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:49,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:49,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:13:49,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33450704] [2022-11-16 11:13:49,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:49,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:13:49,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:49,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:13:49,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:13:49,400 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 11:13:49,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 794 places, 1734 transitions, 62389 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:49,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:49,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 11:13:49,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand