./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN --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 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --- 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-6b4ec56 [2022-11-20 11:43:12,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:43:12,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:43:12,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:43:12,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:43:12,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:43:12,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:43:12,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:43:12,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:43:12,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:43:12,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:43:12,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:43:12,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:43:12,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:43:12,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:43:12,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:43:12,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:43:12,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:43:12,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:43:12,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:43:12,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:43:12,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:43:12,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:43:12,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:43:12,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:43:12,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:43:12,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:43:12,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:43:12,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:43:12,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:43:12,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:43:12,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:43:12,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:43:12,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:43:12,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:43:12,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:43:12,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:43:12,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:43:12,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:43:12,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:43:12,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:43:12,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:43:13,017 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:43:13,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:43:13,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:43:13,018 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:43:13,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:43:13,019 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:43:13,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:43:13,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:43:13,023 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:43:13,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:43:13,025 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:43:13,025 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:43:13,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:43:13,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:43:13,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:43:13,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:43:13,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:43:13,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:43:13,026 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:43:13,027 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:43:13,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:43:13,027 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:43:13,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:43:13,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:43:13,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:43:13,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:43:13,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:43:13,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:43:13,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:43:13,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:43:13,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:43:13,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:43:13,031 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:43:13,031 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:43:13,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:43:13,032 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_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2022-11-20 11:43:13,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:43:13,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:43:13,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:43:13,361 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:43:13,361 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:43:13,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-20 11:43:16,619 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:43:16,919 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:43:16,919 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-20 11:43:16,953 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/data/b5982ac18/7eebbce8b0e641bfa100af3deaead94c/FLAG4c9966d65 [2022-11-20 11:43:16,970 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/data/b5982ac18/7eebbce8b0e641bfa100af3deaead94c [2022-11-20 11:43:16,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:43:16,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:43:16,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:43:16,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:43:16,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:43:16,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:43:16" (1/1) ... [2022-11-20 11:43:16,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e03f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:16, skipping insertion in model container [2022-11-20 11:43:16,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:43:16" (1/1) ... [2022-11-20 11:43:16,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:43:17,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:43:17,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:43:17,966 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:43:18,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:43:18,143 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:43:18,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18 WrapperNode [2022-11-20 11:43:18,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:43:18,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:43:18,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:43:18,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:43:18,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (1/1) ... [2022-11-20 11:43:18,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (1/1) ... [2022-11-20 11:43:18,224 INFO L138 Inliner]: procedures = 368, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 196 [2022-11-20 11:43:18,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:43:18,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:43:18,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:43:18,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:43:18,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (1/1) ... [2022-11-20 11:43:18,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (1/1) ... [2022-11-20 11:43:18,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (1/1) ... [2022-11-20 11:43:18,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (1/1) ... [2022-11-20 11:43:18,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (1/1) ... [2022-11-20 11:43:18,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (1/1) ... [2022-11-20 11:43:18,301 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (1/1) ... [2022-11-20 11:43:18,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (1/1) ... [2022-11-20 11:43:18,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:43:18,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:43:18,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:43:18,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:43:18,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (1/1) ... [2022-11-20 11:43:18,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:43:18,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:18,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:43:18,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b112f9-1f1e-4129-a408-76eb29f28d92/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:43:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:43:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:43:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:43:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:43:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:43:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:43:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:43:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:43:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:43:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:43:18,409 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:43:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:43:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:43:18,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:43:18,411 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:43:18,608 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:43:18,610 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:43:19,311 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:43:19,324 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:43:19,324 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:43:19,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:43:19 BoogieIcfgContainer [2022-11-20 11:43:19,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:43:19,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:43:19,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:43:19,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:43:19,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:43:16" (1/3) ... [2022-11-20 11:43:19,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675a34a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:43:19, skipping insertion in model container [2022-11-20 11:43:19,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:18" (2/3) ... [2022-11-20 11:43:19,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675a34a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:43:19, skipping insertion in model container [2022-11-20 11:43:19,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:43:19" (3/3) ... [2022-11-20 11:43:19,342 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2022-11-20 11:43:19,353 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:43:19,363 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:43:19,363 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-20 11:43:19,363 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:43:19,473 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:43:19,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 307 places, 303 transitions, 611 flow [2022-11-20 11:43:19,647 INFO L130 PetriNetUnfolder]: 0/302 cut-off events. [2022-11-20 11:43:19,653 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:43:19,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 302 events. 0/302 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 157 event pairs, 0 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-20 11:43:19,659 INFO L82 GeneralOperation]: Start removeDead. Operand has 307 places, 303 transitions, 611 flow [2022-11-20 11:43:19,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 302 transitions, 607 flow [2022-11-20 11:43:19,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:43:19,692 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;@4526a645, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:43:19,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-20 11:43:19,703 INFO L130 PetriNetUnfolder]: 0/39 cut-off events. [2022-11-20 11:43:19,703 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:43:19,703 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:19,705 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] [2022-11-20 11:43:19,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:19,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:19,711 INFO L85 PathProgramCache]: Analyzing trace with hash 284887678, now seen corresponding path program 1 times [2022-11-20 11:43:19,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:19,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033881831] [2022-11-20 11:43:19,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:19,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:20,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:20,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:20,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033881831] [2022-11-20 11:43:20,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033881831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:20,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:20,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:20,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54935059] [2022-11-20 11:43:20,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:20,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:20,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:20,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:20,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:20,681 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 303 [2022-11-20 11:43:20,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 302 transitions, 607 flow. Second operand has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:20,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:20,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 303 [2022-11-20 11:43:20,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:22,138 INFO L130 PetriNetUnfolder]: 864/2863 cut-off events. [2022-11-20 11:43:22,138 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:43:22,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4737 conditions, 2863 events. 864/2863 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17946 event pairs, 864 based on Foata normal form. 0/2500 useless extension candidates. Maximal degree in co-relation 4478. Up to 1850 conditions per place. [2022-11-20 11:43:22,168 INFO L137 encePairwiseOnDemand]: 279/303 looper letters, 121 selfloop transitions, 20 changer transitions 0/298 dead transitions. [2022-11-20 11:43:22,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 298 transitions, 881 flow [2022-11-20 11:43:22,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:22,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:22,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1093 transitions. [2022-11-20 11:43:22,193 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6012101210121013 [2022-11-20 11:43:22,194 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1093 transitions. [2022-11-20 11:43:22,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1093 transitions. [2022-11-20 11:43:22,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:22,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1093 transitions. [2022-11-20 11:43:22,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:22,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:22,225 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:22,228 INFO L175 Difference]: Start difference. First operand has 306 places, 302 transitions, 607 flow. Second operand 6 states and 1093 transitions. [2022-11-20 11:43:22,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 298 transitions, 881 flow [2022-11-20 11:43:22,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 298 transitions, 880 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:43:22,248 INFO L231 Difference]: Finished difference. Result has 306 places, 298 transitions, 638 flow [2022-11-20 11:43:22,250 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=638, PETRI_PLACES=306, PETRI_TRANSITIONS=298} [2022-11-20 11:43:22,257 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 0 predicate places. [2022-11-20 11:43:22,259 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 298 transitions, 638 flow [2022-11-20 11:43:22,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:22,261 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:22,261 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:22,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:43:22,263 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:22,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:22,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1527628294, now seen corresponding path program 1 times [2022-11-20 11:43:22,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:22,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768241989] [2022-11-20 11:43:22,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:22,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:22,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:22,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:22,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768241989] [2022-11-20 11:43:22,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768241989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:22,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:22,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:22,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149916664] [2022-11-20 11:43:22,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:22,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:22,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:22,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:22,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:22,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 303 [2022-11-20 11:43:22,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 298 transitions, 638 flow. Second operand has 6 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:22,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:22,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 303 [2022-11-20 11:43:22,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:23,832 INFO L130 PetriNetUnfolder]: 864/2859 cut-off events. [2022-11-20 11:43:23,833 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 11:43:23,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4749 conditions, 2859 events. 864/2859 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17826 event pairs, 864 based on Foata normal form. 0/2500 useless extension candidates. Maximal degree in co-relation 4520. Up to 1846 conditions per place. [2022-11-20 11:43:23,849 INFO L137 encePairwiseOnDemand]: 279/303 looper letters, 117 selfloop transitions, 20 changer transitions 0/294 dead transitions. [2022-11-20 11:43:23,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 294 transitions, 904 flow [2022-11-20 11:43:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:23,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:23,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1089 transitions. [2022-11-20 11:43:23,853 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.599009900990099 [2022-11-20 11:43:23,853 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1089 transitions. [2022-11-20 11:43:23,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1089 transitions. [2022-11-20 11:43:23,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:23,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1089 transitions. [2022-11-20 11:43:23,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,863 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,863 INFO L175 Difference]: Start difference. First operand has 306 places, 298 transitions, 638 flow. Second operand 6 states and 1089 transitions. [2022-11-20 11:43:23,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 294 transitions, 904 flow [2022-11-20 11:43:23,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 294 transitions, 864 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:43:23,872 INFO L231 Difference]: Finished difference. Result has 302 places, 294 transitions, 630 flow [2022-11-20 11:43:23,872 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=630, PETRI_PLACES=302, PETRI_TRANSITIONS=294} [2022-11-20 11:43:23,873 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -4 predicate places. [2022-11-20 11:43:23,873 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 294 transitions, 630 flow [2022-11-20 11:43:23,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:23,875 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:23,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:43:23,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:23,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:23,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1091436279, now seen corresponding path program 1 times [2022-11-20 11:43:23,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:23,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078047726] [2022-11-20 11:43:23,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:23,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:24,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:24,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:24,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078047726] [2022-11-20 11:43:24,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078047726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:24,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:24,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:43:24,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157856007] [2022-11-20 11:43:24,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:24,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:43:24,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:24,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:43:24,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:43:24,045 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 303 [2022-11-20 11:43:24,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 294 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:24,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:24,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 303 [2022-11-20 11:43:24,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:24,140 INFO L130 PetriNetUnfolder]: 9/521 cut-off events. [2022-11-20 11:43:24,140 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:43:24,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 521 events. 9/521 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1502 event pairs, 9 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 397. Up to 35 conditions per place. [2022-11-20 11:43:24,142 INFO L137 encePairwiseOnDemand]: 300/303 looper letters, 16 selfloop transitions, 2 changer transitions 0/293 dead transitions. [2022-11-20 11:43:24,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 293 transitions, 664 flow [2022-11-20 11:43:24,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:43:24,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:43:24,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 871 transitions. [2022-11-20 11:43:24,145 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9581958195819582 [2022-11-20 11:43:24,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 871 transitions. [2022-11-20 11:43:24,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 871 transitions. [2022-11-20 11:43:24,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:24,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 871 transitions. [2022-11-20 11:43:24,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:24,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:24,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:24,152 INFO L175 Difference]: Start difference. First operand has 302 places, 294 transitions, 630 flow. Second operand 3 states and 871 transitions. [2022-11-20 11:43:24,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 293 transitions, 664 flow [2022-11-20 11:43:24,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 293 transitions, 624 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:43:24,158 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 592 flow [2022-11-20 11:43:24,159 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=592, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2022-11-20 11:43:24,161 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -8 predicate places. [2022-11-20 11:43:24,161 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 592 flow [2022-11-20 11:43:24,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:24,162 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:24,162 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:24,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:43:24,163 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:24,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:24,163 INFO L85 PathProgramCache]: Analyzing trace with hash 93249018, now seen corresponding path program 1 times [2022-11-20 11:43:24,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:24,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9023473] [2022-11-20 11:43:24,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:24,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:24,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:24,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:24,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9023473] [2022-11-20 11:43:24,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9023473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:24,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:24,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:43:24,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47580096] [2022-11-20 11:43:24,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:24,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:43:24,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:24,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:43:24,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:43:24,236 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2022-11-20 11:43:24,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 592 flow. Second operand has 3 states, 3 states have (on average 288.3333333333333) internal successors, (865), 3 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:24,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:24,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2022-11-20 11:43:24,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:24,325 INFO L130 PetriNetUnfolder]: 4/458 cut-off events. [2022-11-20 11:43:24,325 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:43:24,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 458 events. 4/458 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1077 event pairs, 4 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 420. Up to 17 conditions per place. [2022-11-20 11:43:24,327 INFO L137 encePairwiseOnDemand]: 298/303 looper letters, 10 selfloop transitions, 1 changer transitions 0/289 dead transitions. [2022-11-20 11:43:24,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 289 transitions, 606 flow [2022-11-20 11:43:24,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:43:24,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:43:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 876 transitions. [2022-11-20 11:43:24,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9636963696369637 [2022-11-20 11:43:24,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 876 transitions. [2022-11-20 11:43:24,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 876 transitions. [2022-11-20 11:43:24,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:24,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 876 transitions. [2022-11-20 11:43:24,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:24,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:24,342 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:24,343 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 592 flow. Second operand 3 states and 876 transitions. [2022-11-20 11:43:24,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 289 transitions, 606 flow [2022-11-20 11:43:24,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 289 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:43:24,350 INFO L231 Difference]: Finished difference. Result has 294 places, 289 transitions, 582 flow [2022-11-20 11:43:24,351 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=294, PETRI_TRANSITIONS=289} [2022-11-20 11:43:24,352 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -12 predicate places. [2022-11-20 11:43:24,352 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 289 transitions, 582 flow [2022-11-20 11:43:24,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 288.3333333333333) internal successors, (865), 3 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:24,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:24,353 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:24,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:43:24,354 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:24,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:24,354 INFO L85 PathProgramCache]: Analyzing trace with hash -201752547, now seen corresponding path program 1 times [2022-11-20 11:43:24,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:24,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231742564] [2022-11-20 11:43:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:24,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:25,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:25,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:25,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231742564] [2022-11-20 11:43:25,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231742564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:25,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:25,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:25,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637109585] [2022-11-20 11:43:25,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:25,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:25,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:25,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:25,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:25,031 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 303 [2022-11-20 11:43:25,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 289 transitions, 582 flow. Second operand has 6 states, 6 states have (on average 178.16666666666666) internal successors, (1069), 6 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:25,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:25,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 303 [2022-11-20 11:43:25,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:26,118 INFO L130 PetriNetUnfolder]: 925/3025 cut-off events. [2022-11-20 11:43:26,118 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:43:26,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5002 conditions, 3025 events. 925/3025 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 19110 event pairs, 925 based on Foata normal form. 0/2660 useless extension candidates. Maximal degree in co-relation 4927. Up to 1967 conditions per place. [2022-11-20 11:43:26,137 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 116 selfloop transitions, 5 changer transitions 0/288 dead transitions. [2022-11-20 11:43:26,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 288 transitions, 822 flow [2022-11-20 11:43:26,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:26,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:26,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1160 transitions. [2022-11-20 11:43:26,142 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6380638063806381 [2022-11-20 11:43:26,142 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1160 transitions. [2022-11-20 11:43:26,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1160 transitions. [2022-11-20 11:43:26,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:26,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1160 transitions. [2022-11-20 11:43:26,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 193.33333333333334) internal successors, (1160), 6 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,152 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,153 INFO L175 Difference]: Start difference. First operand has 294 places, 289 transitions, 582 flow. Second operand 6 states and 1160 transitions. [2022-11-20 11:43:26,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 288 transitions, 822 flow [2022-11-20 11:43:26,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 288 transitions, 821 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:43:26,161 INFO L231 Difference]: Finished difference. Result has 297 places, 288 transitions, 589 flow [2022-11-20 11:43:26,161 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=589, PETRI_PLACES=297, PETRI_TRANSITIONS=288} [2022-11-20 11:43:26,162 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -9 predicate places. [2022-11-20 11:43:26,162 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 288 transitions, 589 flow [2022-11-20 11:43:26,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.16666666666666) internal successors, (1069), 6 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,163 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:26,164 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:26,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:43:26,164 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:26,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:26,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1414360581, now seen corresponding path program 1 times [2022-11-20 11:43:26,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:26,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849317106] [2022-11-20 11:43:26,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:26,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:26,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:26,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849317106] [2022-11-20 11:43:26,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849317106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:26,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:26,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:43:26,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898100675] [2022-11-20 11:43:26,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:26,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:43:26,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:26,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:43:26,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:43:26,285 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 303 [2022-11-20 11:43:26,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 288 transitions, 589 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:26,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 303 [2022-11-20 11:43:26,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:26,469 INFO L130 PetriNetUnfolder]: 9/420 cut-off events. [2022-11-20 11:43:26,470 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:43:26,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 420 events. 9/420 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 776 event pairs, 9 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 404. Up to 35 conditions per place. [2022-11-20 11:43:26,472 INFO L137 encePairwiseOnDemand]: 300/303 looper letters, 16 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2022-11-20 11:43:26,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 287 transitions, 623 flow [2022-11-20 11:43:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:43:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:43:26,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 871 transitions. [2022-11-20 11:43:26,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9581958195819582 [2022-11-20 11:43:26,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 871 transitions. [2022-11-20 11:43:26,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 871 transitions. [2022-11-20 11:43:26,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:26,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 871 transitions. [2022-11-20 11:43:26,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,483 INFO L175 Difference]: Start difference. First operand has 297 places, 288 transitions, 589 flow. Second operand 3 states and 871 transitions. [2022-11-20 11:43:26,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 287 transitions, 623 flow [2022-11-20 11:43:26,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 287 transitions, 613 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:43:26,496 INFO L231 Difference]: Finished difference. Result has 293 places, 287 transitions, 581 flow [2022-11-20 11:43:26,497 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=581, PETRI_PLACES=293, PETRI_TRANSITIONS=287} [2022-11-20 11:43:26,500 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -13 predicate places. [2022-11-20 11:43:26,500 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 287 transitions, 581 flow [2022-11-20 11:43:26,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,501 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:26,501 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:26,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:43:26,502 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:26,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:26,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1964613657, now seen corresponding path program 1 times [2022-11-20 11:43:26,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:26,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990098814] [2022-11-20 11:43:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:26,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:26,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:26,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990098814] [2022-11-20 11:43:26,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990098814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:26,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:26,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:43:26,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092623458] [2022-11-20 11:43:26,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:26,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:43:26,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:26,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:43:26,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:43:26,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2022-11-20 11:43:26,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 287 transitions, 581 flow. Second operand has 3 states, 3 states have (on average 288.3333333333333) internal successors, (865), 3 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:26,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2022-11-20 11:43:26,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:26,684 INFO L130 PetriNetUnfolder]: 4/376 cut-off events. [2022-11-20 11:43:26,684 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:43:26,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 376 events. 4/376 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 523 event pairs, 4 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 341. Up to 17 conditions per place. [2022-11-20 11:43:26,687 INFO L137 encePairwiseOnDemand]: 298/303 looper letters, 10 selfloop transitions, 1 changer transitions 0/283 dead transitions. [2022-11-20 11:43:26,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 283 transitions, 595 flow [2022-11-20 11:43:26,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:43:26,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:43:26,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 876 transitions. [2022-11-20 11:43:26,691 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9636963696369637 [2022-11-20 11:43:26,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 876 transitions. [2022-11-20 11:43:26,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 876 transitions. [2022-11-20 11:43:26,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:26,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 876 transitions. [2022-11-20 11:43:26,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,697 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,698 INFO L175 Difference]: Start difference. First operand has 293 places, 287 transitions, 581 flow. Second operand 3 states and 876 transitions. [2022-11-20 11:43:26,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 283 transitions, 595 flow [2022-11-20 11:43:26,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 283 transitions, 591 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:43:26,704 INFO L231 Difference]: Finished difference. Result has 289 places, 283 transitions, 571 flow [2022-11-20 11:43:26,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=571, PETRI_PLACES=289, PETRI_TRANSITIONS=283} [2022-11-20 11:43:26,706 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -17 predicate places. [2022-11-20 11:43:26,706 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 283 transitions, 571 flow [2022-11-20 11:43:26,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 288.3333333333333) internal successors, (865), 3 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:26,707 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:26,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:43:26,708 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:26,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1205484295, now seen corresponding path program 1 times [2022-11-20 11:43:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:26,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517529941] [2022-11-20 11:43:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:26,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:27,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:27,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:27,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517529941] [2022-11-20 11:43:27,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517529941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:27,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:27,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:27,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522989614] [2022-11-20 11:43:27,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:27,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:27,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:27,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:27,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:27,732 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 303 [2022-11-20 11:43:27,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 283 transitions, 571 flow. Second operand has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:27,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:27,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 303 [2022-11-20 11:43:27,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:28,614 INFO L130 PetriNetUnfolder]: 925/2936 cut-off events. [2022-11-20 11:43:28,614 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:43:28,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4913 conditions, 2936 events. 925/2936 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 18290 event pairs, 925 based on Foata normal form. 0/2605 useless extension candidates. Maximal degree in co-relation 4839. Up to 1966 conditions per place. [2022-11-20 11:43:28,631 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 115 selfloop transitions, 5 changer transitions 0/282 dead transitions. [2022-11-20 11:43:28,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 282 transitions, 809 flow [2022-11-20 11:43:28,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:28,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:28,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1159 transitions. [2022-11-20 11:43:28,635 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6375137513751375 [2022-11-20 11:43:28,636 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1159 transitions. [2022-11-20 11:43:28,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1159 transitions. [2022-11-20 11:43:28,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:28,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1159 transitions. [2022-11-20 11:43:28,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 193.16666666666666) internal successors, (1159), 6 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:28,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:28,645 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:28,645 INFO L175 Difference]: Start difference. First operand has 289 places, 283 transitions, 571 flow. Second operand 6 states and 1159 transitions. [2022-11-20 11:43:28,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 282 transitions, 809 flow [2022-11-20 11:43:28,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 282 transitions, 808 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:43:28,652 INFO L231 Difference]: Finished difference. Result has 292 places, 282 transitions, 578 flow [2022-11-20 11:43:28,652 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=578, PETRI_PLACES=292, PETRI_TRANSITIONS=282} [2022-11-20 11:43:28,656 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -14 predicate places. [2022-11-20 11:43:28,656 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 282 transitions, 578 flow [2022-11-20 11:43:28,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:28,657 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:28,658 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:28,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:43:28,658 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:28,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2091426316, now seen corresponding path program 1 times [2022-11-20 11:43:28,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:28,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789741828] [2022-11-20 11:43:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:28,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:29,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:29,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789741828] [2022-11-20 11:43:29,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789741828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:29,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:29,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:29,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786871698] [2022-11-20 11:43:29,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:29,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:29,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:29,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:29,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:29,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 303 [2022-11-20 11:43:29,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 282 transitions, 578 flow. Second operand has 6 states, 6 states have (on average 186.16666666666666) internal successors, (1117), 6 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:29,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:29,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 303 [2022-11-20 11:43:29,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:31,390 INFO L130 PetriNetUnfolder]: 1392/4471 cut-off events. [2022-11-20 11:43:31,391 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:43:31,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7430 conditions, 4471 events. 1392/4471 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32452 event pairs, 181 based on Foata normal form. 0/4026 useless extension candidates. Maximal degree in co-relation 7356. Up to 1396 conditions per place. [2022-11-20 11:43:31,418 INFO L137 encePairwiseOnDemand]: 284/303 looper letters, 220 selfloop transitions, 38 changer transitions 0/423 dead transitions. [2022-11-20 11:43:31,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 423 transitions, 1376 flow [2022-11-20 11:43:31,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:31,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1316 transitions. [2022-11-20 11:43:31,422 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7238723872387238 [2022-11-20 11:43:31,422 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1316 transitions. [2022-11-20 11:43:31,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1316 transitions. [2022-11-20 11:43:31,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:31,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1316 transitions. [2022-11-20 11:43:31,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 219.33333333333334) internal successors, (1316), 6 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:31,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:31,430 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:31,431 INFO L175 Difference]: Start difference. First operand has 292 places, 282 transitions, 578 flow. Second operand 6 states and 1316 transitions. [2022-11-20 11:43:31,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 423 transitions, 1376 flow [2022-11-20 11:43:31,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 423 transitions, 1366 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:43:31,438 INFO L231 Difference]: Finished difference. Result has 296 places, 318 transitions, 826 flow [2022-11-20 11:43:31,439 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=826, PETRI_PLACES=296, PETRI_TRANSITIONS=318} [2022-11-20 11:43:31,440 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -10 predicate places. [2022-11-20 11:43:31,440 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 318 transitions, 826 flow [2022-11-20 11:43:31,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.16666666666666) internal successors, (1117), 6 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:31,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:31,441 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:31,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:43:31,442 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:31,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:31,442 INFO L85 PathProgramCache]: Analyzing trace with hash -191995944, now seen corresponding path program 1 times [2022-11-20 11:43:31,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:31,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084120574] [2022-11-20 11:43:31,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:31,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:32,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:32,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084120574] [2022-11-20 11:43:32,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084120574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:32,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:32,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:32,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117624359] [2022-11-20 11:43:32,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:32,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:32,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:32,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:32,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:32,236 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 303 [2022-11-20 11:43:32,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 318 transitions, 826 flow. Second operand has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:32,239 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:32,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 303 [2022-11-20 11:43:32,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:33,842 INFO L130 PetriNetUnfolder]: 1425/4573 cut-off events. [2022-11-20 11:43:33,842 INFO L131 PetriNetUnfolder]: For 1048/1048 co-relation queries the response was YES. [2022-11-20 11:43:33,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8705 conditions, 4573 events. 1425/4573 cut-off events. For 1048/1048 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32930 event pairs, 936 based on Foata normal form. 0/4126 useless extension candidates. Maximal degree in co-relation 8629. Up to 2730 conditions per place. [2022-11-20 11:43:33,880 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 237 selfloop transitions, 5 changer transitions 0/409 dead transitions. [2022-11-20 11:43:33,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 409 transitions, 1532 flow [2022-11-20 11:43:33,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:33,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1274 transitions. [2022-11-20 11:43:33,885 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7007700770077008 [2022-11-20 11:43:33,885 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1274 transitions. [2022-11-20 11:43:33,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1274 transitions. [2022-11-20 11:43:33,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:33,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1274 transitions. [2022-11-20 11:43:33,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.33333333333334) internal successors, (1274), 6 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:33,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:33,894 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:33,895 INFO L175 Difference]: Start difference. First operand has 296 places, 318 transitions, 826 flow. Second operand 6 states and 1274 transitions. [2022-11-20 11:43:33,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 409 transitions, 1532 flow [2022-11-20 11:43:33,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 409 transitions, 1532 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:43:33,911 INFO L231 Difference]: Finished difference. Result has 300 places, 317 transitions, 834 flow [2022-11-20 11:43:33,912 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=834, PETRI_PLACES=300, PETRI_TRANSITIONS=317} [2022-11-20 11:43:33,913 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -6 predicate places. [2022-11-20 11:43:33,914 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 317 transitions, 834 flow [2022-11-20 11:43:33,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:33,915 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:33,915 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:33,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:43:33,916 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:33,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:33,917 INFO L85 PathProgramCache]: Analyzing trace with hash 577247079, now seen corresponding path program 1 times [2022-11-20 11:43:33,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:33,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712365485] [2022-11-20 11:43:33,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:33,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:34,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:34,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712365485] [2022-11-20 11:43:34,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712365485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:34,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:34,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:34,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807917981] [2022-11-20 11:43:34,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:34,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:34,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:34,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:34,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:34,670 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 303 [2022-11-20 11:43:34,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 317 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 182.66666666666666) internal successors, (1096), 6 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:34,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:34,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 303 [2022-11-20 11:43:34,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:36,900 INFO L130 PetriNetUnfolder]: 1814/5681 cut-off events. [2022-11-20 11:43:36,901 INFO L131 PetriNetUnfolder]: For 1339/1343 co-relation queries the response was YES. [2022-11-20 11:43:36,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10916 conditions, 5681 events. 1814/5681 cut-off events. For 1339/1343 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 43897 event pairs, 351 based on Foata normal form. 0/5233 useless extension candidates. Maximal degree in co-relation 10836. Up to 2174 conditions per place. [2022-11-20 11:43:36,942 INFO L137 encePairwiseOnDemand]: 282/303 looper letters, 265 selfloop transitions, 71 changer transitions 0/496 dead transitions. [2022-11-20 11:43:36,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 496 transitions, 2120 flow [2022-11-20 11:43:36,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:36,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:36,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1299 transitions. [2022-11-20 11:43:36,947 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7145214521452146 [2022-11-20 11:43:36,947 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1299 transitions. [2022-11-20 11:43:36,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1299 transitions. [2022-11-20 11:43:36,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:36,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1299 transitions. [2022-11-20 11:43:36,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:36,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:36,978 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:36,978 INFO L175 Difference]: Start difference. First operand has 300 places, 317 transitions, 834 flow. Second operand 6 states and 1299 transitions. [2022-11-20 11:43:36,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 496 transitions, 2120 flow [2022-11-20 11:43:36,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 496 transitions, 2070 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:43:36,994 INFO L231 Difference]: Finished difference. Result has 305 places, 386 transitions, 1482 flow [2022-11-20 11:43:36,996 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1482, PETRI_PLACES=305, PETRI_TRANSITIONS=386} [2022-11-20 11:43:36,997 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -1 predicate places. [2022-11-20 11:43:36,997 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 386 transitions, 1482 flow [2022-11-20 11:43:36,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.66666666666666) internal successors, (1096), 6 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:36,999 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:36,999 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:36,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:43:37,000 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:37,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:37,001 INFO L85 PathProgramCache]: Analyzing trace with hash -69555747, now seen corresponding path program 1 times [2022-11-20 11:43:37,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:37,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114132687] [2022-11-20 11:43:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:37,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:37,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114132687] [2022-11-20 11:43:37,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114132687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:37,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:37,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:37,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768390255] [2022-11-20 11:43:37,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:37,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:37,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:37,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:37,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:37,785 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 303 [2022-11-20 11:43:37,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 386 transitions, 1482 flow. Second operand has 6 states, 6 states have (on average 187.66666666666666) internal successors, (1126), 6 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:37,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:37,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 303 [2022-11-20 11:43:37,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:40,144 INFO L130 PetriNetUnfolder]: 1933/6144 cut-off events. [2022-11-20 11:43:40,144 INFO L131 PetriNetUnfolder]: For 3618/3665 co-relation queries the response was YES. [2022-11-20 11:43:40,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14078 conditions, 6144 events. 1933/6144 cut-off events. For 3618/3665 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 48139 event pairs, 1000 based on Foata normal form. 0/5731 useless extension candidates. Maximal degree in co-relation 13997. Up to 3840 conditions per place. [2022-11-20 11:43:40,221 INFO L137 encePairwiseOnDemand]: 280/303 looper letters, 250 selfloop transitions, 89 changer transitions 0/505 dead transitions. [2022-11-20 11:43:40,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 505 transitions, 2680 flow [2022-11-20 11:43:40,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:40,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1273 transitions. [2022-11-20 11:43:40,227 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7002200220022002 [2022-11-20 11:43:40,227 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1273 transitions. [2022-11-20 11:43:40,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1273 transitions. [2022-11-20 11:43:40,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:40,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1273 transitions. [2022-11-20 11:43:40,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.16666666666666) internal successors, (1273), 6 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:40,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:40,239 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:40,239 INFO L175 Difference]: Start difference. First operand has 305 places, 386 transitions, 1482 flow. Second operand 6 states and 1273 transitions. [2022-11-20 11:43:40,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 505 transitions, 2680 flow [2022-11-20 11:43:40,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 505 transitions, 2680 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:43:40,268 INFO L231 Difference]: Finished difference. Result has 315 places, 470 transitions, 2284 flow [2022-11-20 11:43:40,269 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=1482, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2284, PETRI_PLACES=315, PETRI_TRANSITIONS=470} [2022-11-20 11:43:40,270 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 9 predicate places. [2022-11-20 11:43:40,270 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 470 transitions, 2284 flow [2022-11-20 11:43:40,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.66666666666666) internal successors, (1126), 6 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:40,271 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:40,271 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:40,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:43:40,271 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:40,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash -644301971, now seen corresponding path program 1 times [2022-11-20 11:43:40,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:40,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777284456] [2022-11-20 11:43:40,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:40,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:40,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:40,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:40,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777284456] [2022-11-20 11:43:40,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777284456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:40,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:40,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:43:40,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250292986] [2022-11-20 11:43:40,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:40,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:43:40,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:40,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:43:40,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:43:40,530 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 303 [2022-11-20 11:43:40,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 470 transitions, 2284 flow. Second operand has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:40,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:40,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 303 [2022-11-20 11:43:40,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:40,965 INFO L130 PetriNetUnfolder]: 283/1927 cut-off events. [2022-11-20 11:43:40,966 INFO L131 PetriNetUnfolder]: For 1060/1137 co-relation queries the response was YES. [2022-11-20 11:43:40,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3932 conditions, 1927 events. 283/1927 cut-off events. For 1060/1137 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13009 event pairs, 25 based on Foata normal form. 4/1851 useless extension candidates. Maximal degree in co-relation 3850. Up to 272 conditions per place. [2022-11-20 11:43:40,979 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 15 selfloop transitions, 6 changer transitions 0/410 dead transitions. [2022-11-20 11:43:40,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 410 transitions, 1762 flow [2022-11-20 11:43:40,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:43:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:43:40,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 887 transitions. [2022-11-20 11:43:40,982 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9757975797579758 [2022-11-20 11:43:40,982 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 887 transitions. [2022-11-20 11:43:40,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 887 transitions. [2022-11-20 11:43:40,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:40,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 887 transitions. [2022-11-20 11:43:40,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:40,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:40,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:40,987 INFO L175 Difference]: Start difference. First operand has 315 places, 470 transitions, 2284 flow. Second operand 3 states and 887 transitions. [2022-11-20 11:43:40,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 410 transitions, 1762 flow [2022-11-20 11:43:41,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 410 transitions, 1674 flow, removed 44 selfloop flow, removed 0 redundant places. [2022-11-20 11:43:41,006 INFO L231 Difference]: Finished difference. Result has 318 places, 408 transitions, 1654 flow [2022-11-20 11:43:41,006 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=1620, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1654, PETRI_PLACES=318, PETRI_TRANSITIONS=408} [2022-11-20 11:43:41,007 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 12 predicate places. [2022-11-20 11:43:41,007 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 408 transitions, 1654 flow [2022-11-20 11:43:41,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:41,008 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:41,008 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:41,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:43:41,008 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:41,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash -200260275, now seen corresponding path program 1 times [2022-11-20 11:43:41,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:41,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773363248] [2022-11-20 11:43:41,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:41,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:41,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:41,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:41,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773363248] [2022-11-20 11:43:41,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773363248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:41,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:41,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:41,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513432] [2022-11-20 11:43:41,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:41,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:41,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:41,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:41,695 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 303 [2022-11-20 11:43:41,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 408 transitions, 1654 flow. Second operand has 6 states, 6 states have (on average 187.83333333333334) internal successors, (1127), 6 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:41,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:41,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 303 [2022-11-20 11:43:41,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:43,725 INFO L130 PetriNetUnfolder]: 1230/4315 cut-off events. [2022-11-20 11:43:43,726 INFO L131 PetriNetUnfolder]: For 3311/3340 co-relation queries the response was YES. [2022-11-20 11:43:43,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10892 conditions, 4315 events. 1230/4315 cut-off events. For 3311/3340 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33129 event pairs, 209 based on Foata normal form. 0/4141 useless extension candidates. Maximal degree in co-relation 10803. Up to 1169 conditions per place. [2022-11-20 11:43:43,773 INFO L137 encePairwiseOnDemand]: 284/303 looper letters, 386 selfloop transitions, 124 changer transitions 4/684 dead transitions. [2022-11-20 11:43:43,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 684 transitions, 4248 flow [2022-11-20 11:43:43,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:43,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1361 transitions. [2022-11-20 11:43:43,778 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7486248624862486 [2022-11-20 11:43:43,778 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1361 transitions. [2022-11-20 11:43:43,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1361 transitions. [2022-11-20 11:43:43,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:43,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1361 transitions. [2022-11-20 11:43:43,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 226.83333333333334) internal successors, (1361), 6 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:43,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:43,787 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:43,787 INFO L175 Difference]: Start difference. First operand has 318 places, 408 transitions, 1654 flow. Second operand 6 states and 1361 transitions. [2022-11-20 11:43:43,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 684 transitions, 4248 flow [2022-11-20 11:43:43,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 684 transitions, 4242 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:43:43,824 INFO L231 Difference]: Finished difference. Result has 326 places, 510 transitions, 3030 flow [2022-11-20 11:43:43,825 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=1646, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3030, PETRI_PLACES=326, PETRI_TRANSITIONS=510} [2022-11-20 11:43:43,826 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 20 predicate places. [2022-11-20 11:43:43,826 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 510 transitions, 3030 flow [2022-11-20 11:43:43,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.83333333333334) internal successors, (1127), 6 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:43,827 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:43,827 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:43,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:43:43,828 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:43,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:43,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1820254003, now seen corresponding path program 1 times [2022-11-20 11:43:43,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:43,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394534722] [2022-11-20 11:43:43,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:43,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:44,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:44,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394534722] [2022-11-20 11:43:44,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394534722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:44,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:44,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:44,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511422691] [2022-11-20 11:43:44,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:44,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:44,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:44,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:44,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:44,601 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 303 [2022-11-20 11:43:44,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 510 transitions, 3030 flow. Second operand has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:44,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:44,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 303 [2022-11-20 11:43:44,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:46,147 INFO L130 PetriNetUnfolder]: 1281/4379 cut-off events. [2022-11-20 11:43:46,147 INFO L131 PetriNetUnfolder]: For 6070/6110 co-relation queries the response was YES. [2022-11-20 11:43:46,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12667 conditions, 4379 events. 1281/4379 cut-off events. For 6070/6110 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33371 event pairs, 469 based on Foata normal form. 0/4251 useless extension candidates. Maximal degree in co-relation 12575. Up to 2356 conditions per place. [2022-11-20 11:43:46,193 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 420 selfloop transitions, 17 changer transitions 0/609 dead transitions. [2022-11-20 11:43:46,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 609 transitions, 4494 flow [2022-11-20 11:43:46,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:46,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1264 transitions. [2022-11-20 11:43:46,198 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6952695269526953 [2022-11-20 11:43:46,199 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1264 transitions. [2022-11-20 11:43:46,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1264 transitions. [2022-11-20 11:43:46,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:46,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1264 transitions. [2022-11-20 11:43:46,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:46,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:46,208 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:46,208 INFO L175 Difference]: Start difference. First operand has 326 places, 510 transitions, 3030 flow. Second operand 6 states and 1264 transitions. [2022-11-20 11:43:46,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 609 transitions, 4494 flow [2022-11-20 11:43:46,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 609 transitions, 4476 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-20 11:43:46,254 INFO L231 Difference]: Finished difference. Result has 330 places, 509 transitions, 3044 flow [2022-11-20 11:43:46,255 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=3010, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3044, PETRI_PLACES=330, PETRI_TRANSITIONS=509} [2022-11-20 11:43:46,255 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 24 predicate places. [2022-11-20 11:43:46,256 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 509 transitions, 3044 flow [2022-11-20 11:43:46,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:46,256 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:46,257 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:46,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:43:46,257 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:46,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:46,258 INFO L85 PathProgramCache]: Analyzing trace with hash -765243550, now seen corresponding path program 1 times [2022-11-20 11:43:46,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:46,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180276971] [2022-11-20 11:43:46,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:46,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:49,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:49,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180276971] [2022-11-20 11:43:49,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180276971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:49,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:49,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-20 11:43:49,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270869026] [2022-11-20 11:43:49,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:49,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-20 11:43:49,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:49,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 11:43:49,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:43:49,520 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 303 [2022-11-20 11:43:49,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 509 transitions, 3044 flow. Second operand has 24 states, 24 states have (on average 128.33333333333334) internal successors, (3080), 24 states have internal predecessors, (3080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:49,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:49,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 303 [2022-11-20 11:43:49,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:54,165 INFO L130 PetriNetUnfolder]: 1780/5443 cut-off events. [2022-11-20 11:43:54,165 INFO L131 PetriNetUnfolder]: For 6924/6926 co-relation queries the response was YES. [2022-11-20 11:43:54,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15870 conditions, 5443 events. 1780/5443 cut-off events. For 6924/6926 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 42185 event pairs, 561 based on Foata normal form. 15/5316 useless extension candidates. Maximal degree in co-relation 15758. Up to 2542 conditions per place. [2022-11-20 11:43:54,229 INFO L137 encePairwiseOnDemand]: 268/303 looper letters, 510 selfloop transitions, 109 changer transitions 1/735 dead transitions. [2022-11-20 11:43:54,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 735 transitions, 5524 flow [2022-11-20 11:43:54,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-20 11:43:54,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-20 11:43:54,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 4921 transitions. [2022-11-20 11:43:54,246 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4389438943894389 [2022-11-20 11:43:54,246 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 4921 transitions. [2022-11-20 11:43:54,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 4921 transitions. [2022-11-20 11:43:54,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:54,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 4921 transitions. [2022-11-20 11:43:54,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 133.0) internal successors, (4921), 37 states have internal predecessors, (4921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:54,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 303.0) internal successors, (11514), 38 states have internal predecessors, (11514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:54,289 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 303.0) internal successors, (11514), 38 states have internal predecessors, (11514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:54,290 INFO L175 Difference]: Start difference. First operand has 330 places, 509 transitions, 3044 flow. Second operand 37 states and 4921 transitions. [2022-11-20 11:43:54,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 735 transitions, 5524 flow [2022-11-20 11:43:54,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 735 transitions, 5476 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:43:54,353 INFO L231 Difference]: Finished difference. Result has 368 places, 544 transitions, 3543 flow [2022-11-20 11:43:54,354 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=3010, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=3543, PETRI_PLACES=368, PETRI_TRANSITIONS=544} [2022-11-20 11:43:54,354 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 62 predicate places. [2022-11-20 11:43:54,355 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 544 transitions, 3543 flow [2022-11-20 11:43:54,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 128.33333333333334) internal successors, (3080), 24 states have internal predecessors, (3080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:54,356 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:54,356 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:54,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:43:54,357 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:43:54,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:54,358 INFO L85 PathProgramCache]: Analyzing trace with hash 825588598, now seen corresponding path program 1 times [2022-11-20 11:43:54,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:54,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800394996] [2022-11-20 11:43:54,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:54,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:58,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:58,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:58,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800394996] [2022-11-20 11:43:58,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800394996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:58,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:58,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 11:43:58,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875630737] [2022-11-20 11:43:58,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:58,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 11:43:58,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:58,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 11:43:58,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2022-11-20 11:43:58,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 303 [2022-11-20 11:43:58,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 544 transitions, 3543 flow. Second operand has 25 states, 25 states have (on average 130.08) internal successors, (3252), 25 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:58,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:58,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 303 [2022-11-20 11:43:58,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:44:03,708 INFO L130 PetriNetUnfolder]: 2170/6752 cut-off events. [2022-11-20 11:44:03,709 INFO L131 PetriNetUnfolder]: For 12305/12313 co-relation queries the response was YES. [2022-11-20 11:44:03,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21201 conditions, 6752 events. 2170/6752 cut-off events. For 12305/12313 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 56029 event pairs, 427 based on Foata normal form. 18/6619 useless extension candidates. Maximal degree in co-relation 21075. Up to 1824 conditions per place. [2022-11-20 11:44:03,798 INFO L137 encePairwiseOnDemand]: 263/303 looper letters, 670 selfloop transitions, 148 changer transitions 3/938 dead transitions. [2022-11-20 11:44:03,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 938 transitions, 7798 flow [2022-11-20 11:44:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-20 11:44:03,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-20 11:44:03,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 4695 transitions. [2022-11-20 11:44:03,813 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4557367501456028 [2022-11-20 11:44:03,813 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 4695 transitions. [2022-11-20 11:44:03,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 4695 transitions. [2022-11-20 11:44:03,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:44:03,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 4695 transitions. [2022-11-20 11:44:03,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 138.08823529411765) internal successors, (4695), 34 states have internal predecessors, (4695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:03,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 303.0) internal successors, (10605), 35 states have internal predecessors, (10605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:03,859 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 303.0) internal successors, (10605), 35 states have internal predecessors, (10605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:03,859 INFO L175 Difference]: Start difference. First operand has 368 places, 544 transitions, 3543 flow. Second operand 34 states and 4695 transitions. [2022-11-20 11:44:03,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 938 transitions, 7798 flow [2022-11-20 11:44:03,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 938 transitions, 7745 flow, removed 6 selfloop flow, removed 17 redundant places. [2022-11-20 11:44:03,965 INFO L231 Difference]: Finished difference. Result has 395 places, 622 transitions, 4916 flow [2022-11-20 11:44:03,966 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=3501, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=4916, PETRI_PLACES=395, PETRI_TRANSITIONS=622} [2022-11-20 11:44:03,967 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 89 predicate places. [2022-11-20 11:44:03,967 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 622 transitions, 4916 flow [2022-11-20 11:44:03,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 130.08) internal successors, (3252), 25 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:03,969 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:44:03,970 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:44:03,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:44:03,970 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:44:03,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:44:03,971 INFO L85 PathProgramCache]: Analyzing trace with hash -904445542, now seen corresponding path program 2 times [2022-11-20 11:44:03,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:44:03,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474080907] [2022-11-20 11:44:03,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:44:03,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:44:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:44:07,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:44:07,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:44:07,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474080907] [2022-11-20 11:44:07,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474080907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:44:07,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:44:07,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-20 11:44:07,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884969515] [2022-11-20 11:44:07,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:44:07,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 11:44:07,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:44:07,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 11:44:07,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:44:07,397 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 303 [2022-11-20 11:44:07,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 622 transitions, 4916 flow. Second operand has 26 states, 26 states have (on average 128.92307692307693) internal successors, (3352), 26 states have internal predecessors, (3352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:07,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:44:07,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 303 [2022-11-20 11:44:07,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:44:13,587 INFO L130 PetriNetUnfolder]: 2337/7199 cut-off events. [2022-11-20 11:44:13,587 INFO L131 PetriNetUnfolder]: For 17838/17851 co-relation queries the response was YES. [2022-11-20 11:44:13,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24473 conditions, 7199 events. 2337/7199 cut-off events. For 17838/17851 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 60005 event pairs, 389 based on Foata normal form. 28/7079 useless extension candidates. Maximal degree in co-relation 24334. Up to 1381 conditions per place. [2022-11-20 11:44:13,660 INFO L137 encePairwiseOnDemand]: 264/303 looper letters, 707 selfloop transitions, 203 changer transitions 4/1030 dead transitions. [2022-11-20 11:44:13,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1030 transitions, 9564 flow [2022-11-20 11:44:13,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-20 11:44:13,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-20 11:44:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 6316 transitions. [2022-11-20 11:44:13,676 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44350818060529457 [2022-11-20 11:44:13,676 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 6316 transitions. [2022-11-20 11:44:13,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 6316 transitions. [2022-11-20 11:44:13,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:44:13,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 6316 transitions. [2022-11-20 11:44:13,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 134.38297872340425) internal successors, (6316), 47 states have internal predecessors, (6316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:13,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 303.0) internal successors, (14544), 48 states have internal predecessors, (14544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:13,719 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 303.0) internal successors, (14544), 48 states have internal predecessors, (14544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:13,720 INFO L175 Difference]: Start difference. First operand has 395 places, 622 transitions, 4916 flow. Second operand 47 states and 6316 transitions. [2022-11-20 11:44:13,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 1030 transitions, 9564 flow [2022-11-20 11:44:13,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 1030 transitions, 9499 flow, removed 14 selfloop flow, removed 17 redundant places. [2022-11-20 11:44:13,887 INFO L231 Difference]: Finished difference. Result has 439 places, 700 transitions, 6208 flow [2022-11-20 11:44:13,888 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=4865, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=6208, PETRI_PLACES=439, PETRI_TRANSITIONS=700} [2022-11-20 11:44:13,889 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 133 predicate places. [2022-11-20 11:44:13,889 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 700 transitions, 6208 flow [2022-11-20 11:44:13,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 128.92307692307693) internal successors, (3352), 26 states have internal predecessors, (3352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:13,890 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:44:13,891 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:44:13,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:44:13,891 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:44:13,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:44:13,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1267914500, now seen corresponding path program 3 times [2022-11-20 11:44:13,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:44:13,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798990202] [2022-11-20 11:44:13,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:44:13,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:44:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:44:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:44:17,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:44:17,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798990202] [2022-11-20 11:44:17,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798990202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:44:17,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:44:17,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-20 11:44:17,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833147727] [2022-11-20 11:44:17,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:44:17,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 11:44:17,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:44:17,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 11:44:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:44:17,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 303 [2022-11-20 11:44:17,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 700 transitions, 6208 flow. Second operand has 27 states, 27 states have (on average 128.74074074074073) internal successors, (3476), 27 states have internal predecessors, (3476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:17,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:44:17,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 303 [2022-11-20 11:44:17,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:44:24,515 INFO L130 PetriNetUnfolder]: 2817/8517 cut-off events. [2022-11-20 11:44:24,515 INFO L131 PetriNetUnfolder]: For 27871/27883 co-relation queries the response was YES. [2022-11-20 11:44:24,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31740 conditions, 8517 events. 2817/8517 cut-off events. For 27871/27883 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 73822 event pairs, 543 based on Foata normal form. 27/8370 useless extension candidates. Maximal degree in co-relation 31583. Up to 1556 conditions per place. [2022-11-20 11:44:24,604 INFO L137 encePairwiseOnDemand]: 260/303 looper letters, 872 selfloop transitions, 235 changer transitions 4/1227 dead transitions. [2022-11-20 11:44:24,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 1227 transitions, 12501 flow [2022-11-20 11:44:24,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-20 11:44:24,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-20 11:44:24,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 5763 transitions. [2022-11-20 11:44:24,615 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45285242809995285 [2022-11-20 11:44:24,615 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 5763 transitions. [2022-11-20 11:44:24,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 5763 transitions. [2022-11-20 11:44:24,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:44:24,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 5763 transitions. [2022-11-20 11:44:24,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 137.21428571428572) internal successors, (5763), 42 states have internal predecessors, (5763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:24,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 303.0) internal successors, (13029), 43 states have internal predecessors, (13029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:24,652 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 303.0) internal successors, (13029), 43 states have internal predecessors, (13029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:24,652 INFO L175 Difference]: Start difference. First operand has 439 places, 700 transitions, 6208 flow. Second operand 42 states and 5763 transitions. [2022-11-20 11:44:24,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 1227 transitions, 12501 flow [2022-11-20 11:44:24,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 1227 transitions, 12283 flow, removed 23 selfloop flow, removed 26 redundant places. [2022-11-20 11:44:24,940 INFO L231 Difference]: Finished difference. Result has 465 places, 783 transitions, 8100 flow [2022-11-20 11:44:24,942 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=6035, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=700, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=8100, PETRI_PLACES=465, PETRI_TRANSITIONS=783} [2022-11-20 11:44:24,942 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 159 predicate places. [2022-11-20 11:44:24,942 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 783 transitions, 8100 flow [2022-11-20 11:44:24,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 128.74074074074073) internal successors, (3476), 27 states have internal predecessors, (3476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:24,944 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:44:24,944 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:44:24,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:44:24,945 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:44:24,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:44:24,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1664535180, now seen corresponding path program 4 times [2022-11-20 11:44:24,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:44:24,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200943510] [2022-11-20 11:44:24,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:44:24,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:44:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:44:27,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:44:27,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:44:27,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200943510] [2022-11-20 11:44:27,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200943510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:44:27,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:44:27,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-20 11:44:27,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683135095] [2022-11-20 11:44:27,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:44:27,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 11:44:27,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:44:27,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 11:44:27,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:44:27,818 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 303 [2022-11-20 11:44:27,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 783 transitions, 8100 flow. Second operand has 26 states, 26 states have (on average 128.92307692307693) internal successors, (3352), 26 states have internal predecessors, (3352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:27,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:44:27,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 303 [2022-11-20 11:44:27,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:44:36,104 INFO L130 PetriNetUnfolder]: 3322/9965 cut-off events. [2022-11-20 11:44:36,104 INFO L131 PetriNetUnfolder]: For 43798/43812 co-relation queries the response was YES. [2022-11-20 11:44:36,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39404 conditions, 9965 events. 3322/9965 cut-off events. For 43798/43812 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 89544 event pairs, 628 based on Foata normal form. 29/9809 useless extension candidates. Maximal degree in co-relation 39234. Up to 1726 conditions per place. [2022-11-20 11:44:36,225 INFO L137 encePairwiseOnDemand]: 260/303 looper letters, 937 selfloop transitions, 302 changer transitions 4/1359 dead transitions. [2022-11-20 11:44:36,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 1359 transitions, 15630 flow [2022-11-20 11:44:36,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-20 11:44:36,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-11-20 11:44:36,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 6032 transitions. [2022-11-20 11:44:36,253 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45244524452445245 [2022-11-20 11:44:36,253 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 6032 transitions. [2022-11-20 11:44:36,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 6032 transitions. [2022-11-20 11:44:36,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:44:36,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 6032 transitions. [2022-11-20 11:44:36,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 137.0909090909091) internal successors, (6032), 44 states have internal predecessors, (6032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:36,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 303.0) internal successors, (13635), 45 states have internal predecessors, (13635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:36,304 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 303.0) internal successors, (13635), 45 states have internal predecessors, (13635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:36,304 INFO L175 Difference]: Start difference. First operand has 465 places, 783 transitions, 8100 flow. Second operand 44 states and 6032 transitions. [2022-11-20 11:44:36,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 1359 transitions, 15630 flow [2022-11-20 11:44:36,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1359 transitions, 15519 flow, removed 19 selfloop flow, removed 22 redundant places. [2022-11-20 11:44:36,762 INFO L231 Difference]: Finished difference. Result has 502 places, 886 transitions, 10886 flow [2022-11-20 11:44:36,763 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=8011, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=783, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=10886, PETRI_PLACES=502, PETRI_TRANSITIONS=886} [2022-11-20 11:44:36,763 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 196 predicate places. [2022-11-20 11:44:36,764 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 886 transitions, 10886 flow [2022-11-20 11:44:36,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 128.92307692307693) internal successors, (3352), 26 states have internal predecessors, (3352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:36,765 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:44:36,765 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:44:36,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:44:36,766 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:44:36,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:44:36,767 INFO L85 PathProgramCache]: Analyzing trace with hash 43241426, now seen corresponding path program 5 times [2022-11-20 11:44:36,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:44:36,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863882356] [2022-11-20 11:44:36,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:44:36,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:44:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:44:39,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:44:39,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:44:39,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863882356] [2022-11-20 11:44:39,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863882356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:44:39,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:44:39,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 11:44:39,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739993587] [2022-11-20 11:44:39,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:44:39,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 11:44:39,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:44:39,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 11:44:39,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-11-20 11:44:39,634 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 303 [2022-11-20 11:44:39,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 886 transitions, 10886 flow. Second operand has 25 states, 25 states have (on average 130.08) internal successors, (3252), 25 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:39,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:44:39,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 303 [2022-11-20 11:44:39,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:44:48,779 INFO L130 PetriNetUnfolder]: 3726/11203 cut-off events. [2022-11-20 11:44:48,779 INFO L131 PetriNetUnfolder]: For 64933/64949 co-relation queries the response was YES. [2022-11-20 11:44:48,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47282 conditions, 11203 events. 3726/11203 cut-off events. For 64933/64949 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 104279 event pairs, 635 based on Foata normal form. 31/11032 useless extension candidates. Maximal degree in co-relation 47092. Up to 2490 conditions per place. [2022-11-20 11:44:48,972 INFO L137 encePairwiseOnDemand]: 263/303 looper letters, 860 selfloop transitions, 336 changer transitions 3/1317 dead transitions. [2022-11-20 11:44:48,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 1317 transitions, 17230 flow [2022-11-20 11:44:48,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-20 11:44:48,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-20 11:44:48,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 5101 transitions. [2022-11-20 11:44:48,983 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.454999554009455 [2022-11-20 11:44:48,983 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 5101 transitions. [2022-11-20 11:44:48,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 5101 transitions. [2022-11-20 11:44:48,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:44:48,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 5101 transitions. [2022-11-20 11:44:48,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 137.86486486486487) internal successors, (5101), 37 states have internal predecessors, (5101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:49,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 303.0) internal successors, (11514), 38 states have internal predecessors, (11514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:49,014 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 303.0) internal successors, (11514), 38 states have internal predecessors, (11514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:49,014 INFO L175 Difference]: Start difference. First operand has 502 places, 886 transitions, 10886 flow. Second operand 37 states and 5101 transitions. [2022-11-20 11:44:49,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 1317 transitions, 17230 flow [2022-11-20 11:44:49,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 1317 transitions, 17087 flow, removed 50 selfloop flow, removed 19 redundant places. [2022-11-20 11:44:49,950 INFO L231 Difference]: Finished difference. Result has 530 places, 962 transitions, 13615 flow [2022-11-20 11:44:49,951 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=10751, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=886, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=261, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=13615, PETRI_PLACES=530, PETRI_TRANSITIONS=962} [2022-11-20 11:44:49,951 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 224 predicate places. [2022-11-20 11:44:49,951 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 962 transitions, 13615 flow [2022-11-20 11:44:49,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 130.08) internal successors, (3252), 25 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:49,952 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:44:49,953 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:44:49,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:44:49,953 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:44:49,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:44:49,953 INFO L85 PathProgramCache]: Analyzing trace with hash 829458002, now seen corresponding path program 1 times [2022-11-20 11:44:49,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:44:49,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716471069] [2022-11-20 11:44:49,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:44:49,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:44:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:44:50,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:44:50,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:44:50,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716471069] [2022-11-20 11:44:50,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716471069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:44:50,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:44:50,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:44:50,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316061179] [2022-11-20 11:44:50,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:44:50,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:44:50,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:44:50,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:44:50,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:44:50,817 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 303 [2022-11-20 11:44:50,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 962 transitions, 13615 flow. Second operand has 6 states, 6 states have (on average 190.16666666666666) internal successors, (1141), 6 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:50,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:44:50,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 303 [2022-11-20 11:44:50,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:44:56,330 INFO L130 PetriNetUnfolder]: 3002/10075 cut-off events. [2022-11-20 11:44:56,330 INFO L131 PetriNetUnfolder]: For 71076/71260 co-relation queries the response was YES. [2022-11-20 11:44:56,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43755 conditions, 10075 events. 3002/10075 cut-off events. For 71076/71260 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 96243 event pairs, 1040 based on Foata normal form. 97/10029 useless extension candidates. Maximal degree in co-relation 43569. Up to 5799 conditions per place. [2022-11-20 11:44:56,515 INFO L137 encePairwiseOnDemand]: 280/303 looper letters, 620 selfloop transitions, 95 changer transitions 105/1096 dead transitions. [2022-11-20 11:44:56,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 1096 transitions, 16417 flow [2022-11-20 11:44:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:44:56,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:44:56,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1271 transitions. [2022-11-20 11:44:56,519 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6991199119911992 [2022-11-20 11:44:56,519 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1271 transitions. [2022-11-20 11:44:56,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1271 transitions. [2022-11-20 11:44:56,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:44:56,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1271 transitions. [2022-11-20 11:44:56,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.83333333333334) internal successors, (1271), 6 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:56,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:56,526 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 303.0) internal successors, (2121), 7 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:56,527 INFO L175 Difference]: Start difference. First operand has 530 places, 962 transitions, 13615 flow. Second operand 6 states and 1271 transitions. [2022-11-20 11:44:56,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 1096 transitions, 16417 flow [2022-11-20 11:44:57,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 1096 transitions, 16277 flow, removed 46 selfloop flow, removed 19 redundant places. [2022-11-20 11:44:57,280 INFO L231 Difference]: Finished difference. Result has 521 places, 958 transitions, 13119 flow [2022-11-20 11:44:57,280 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=13475, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=915, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13119, PETRI_PLACES=521, PETRI_TRANSITIONS=958} [2022-11-20 11:44:57,281 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 215 predicate places. [2022-11-20 11:44:57,281 INFO L495 AbstractCegarLoop]: Abstraction has has 521 places, 958 transitions, 13119 flow [2022-11-20 11:44:57,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.16666666666666) internal successors, (1141), 6 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:57,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:44:57,282 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:44:57,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:44:57,283 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:44:57,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:44:57,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1932228252, now seen corresponding path program 1 times [2022-11-20 11:44:57,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:44:57,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328212893] [2022-11-20 11:44:57,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:44:57,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:44:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:45:00,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:45:00,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:45:00,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328212893] [2022-11-20 11:45:00,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328212893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:45:00,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:45:00,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-20 11:45:00,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207741609] [2022-11-20 11:45:00,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:45:00,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 11:45:00,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:45:00,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 11:45:00,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:45:00,318 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 303 [2022-11-20 11:45:00,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 958 transitions, 13119 flow. Second operand has 26 states, 26 states have (on average 129.1153846153846) internal successors, (3357), 26 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:00,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:45:00,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 303 [2022-11-20 11:45:00,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:45:09,658 INFO L130 PetriNetUnfolder]: 3694/10944 cut-off events. [2022-11-20 11:45:09,658 INFO L131 PetriNetUnfolder]: For 86666/86671 co-relation queries the response was YES. [2022-11-20 11:45:09,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50952 conditions, 10944 events. 3694/10944 cut-off events. For 86666/86671 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 99362 event pairs, 594 based on Foata normal form. 10/10889 useless extension candidates. Maximal degree in co-relation 50748. Up to 2093 conditions per place. [2022-11-20 11:45:09,828 INFO L137 encePairwiseOnDemand]: 264/303 looper letters, 890 selfloop transitions, 269 changer transitions 28/1303 dead transitions. [2022-11-20 11:45:09,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 1303 transitions, 18475 flow [2022-11-20 11:45:09,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-20 11:45:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-11-20 11:45:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 5914 transitions. [2022-11-20 11:45:09,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4435943594359436 [2022-11-20 11:45:09,839 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 5914 transitions. [2022-11-20 11:45:09,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 5914 transitions. [2022-11-20 11:45:09,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:45:09,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 5914 transitions. [2022-11-20 11:45:09,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 134.4090909090909) internal successors, (5914), 44 states have internal predecessors, (5914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:10,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 303.0) internal successors, (13635), 45 states have internal predecessors, (13635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:10,063 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 303.0) internal successors, (13635), 45 states have internal predecessors, (13635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:10,063 INFO L175 Difference]: Start difference. First operand has 521 places, 958 transitions, 13119 flow. Second operand 44 states and 5914 transitions. [2022-11-20 11:45:10,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 1303 transitions, 18475 flow [2022-11-20 11:45:10,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 1303 transitions, 17941 flow, removed 199 selfloop flow, removed 11 redundant places. [2022-11-20 11:45:10,864 INFO L231 Difference]: Finished difference. Result has 532 places, 967 transitions, 13609 flow [2022-11-20 11:45:10,865 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=12743, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=689, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=13609, PETRI_PLACES=532, PETRI_TRANSITIONS=967} [2022-11-20 11:45:10,865 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 226 predicate places. [2022-11-20 11:45:10,866 INFO L495 AbstractCegarLoop]: Abstraction has has 532 places, 967 transitions, 13609 flow [2022-11-20 11:45:10,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 129.1153846153846) internal successors, (3357), 26 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:10,866 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:45:10,866 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:45:10,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 11:45:10,867 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:45:10,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:45:10,868 INFO L85 PathProgramCache]: Analyzing trace with hash -186821822, now seen corresponding path program 2 times [2022-11-20 11:45:10,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:45:10,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451274640] [2022-11-20 11:45:10,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:45:10,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:45:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:45:13,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:45:13,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:45:13,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451274640] [2022-11-20 11:45:13,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451274640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:45:13,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:45:13,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-20 11:45:13,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471008417] [2022-11-20 11:45:13,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:45:13,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 11:45:13,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:45:13,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 11:45:13,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:45:13,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 303 [2022-11-20 11:45:13,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 967 transitions, 13609 flow. Second operand has 26 states, 26 states have (on average 129.1153846153846) internal successors, (3357), 26 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:13,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:45:13,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 303 [2022-11-20 11:45:13,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:45:22,997 INFO L130 PetriNetUnfolder]: 3724/11012 cut-off events. [2022-11-20 11:45:22,997 INFO L131 PetriNetUnfolder]: For 95077/95082 co-relation queries the response was YES. [2022-11-20 11:45:23,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52490 conditions, 11012 events. 3724/11012 cut-off events. For 95077/95082 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 100065 event pairs, 598 based on Foata normal form. 10/10956 useless extension candidates. Maximal degree in co-relation 52286. Up to 2093 conditions per place. [2022-11-20 11:45:23,220 INFO L137 encePairwiseOnDemand]: 263/303 looper letters, 902 selfloop transitions, 275 changer transitions 28/1321 dead transitions. [2022-11-20 11:45:23,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 1321 transitions, 18961 flow [2022-11-20 11:45:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 11:45:23,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-20 11:45:23,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 6044 transitions. [2022-11-20 11:45:23,232 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4432709937660433 [2022-11-20 11:45:23,233 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 6044 transitions. [2022-11-20 11:45:23,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 6044 transitions. [2022-11-20 11:45:23,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:45:23,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 6044 transitions. [2022-11-20 11:45:23,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 134.3111111111111) internal successors, (6044), 45 states have internal predecessors, (6044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:23,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 303.0) internal successors, (13938), 46 states have internal predecessors, (13938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:23,270 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 303.0) internal successors, (13938), 46 states have internal predecessors, (13938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:23,271 INFO L175 Difference]: Start difference. First operand has 532 places, 967 transitions, 13609 flow. Second operand 45 states and 6044 transitions. [2022-11-20 11:45:23,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 1321 transitions, 18961 flow [2022-11-20 11:45:24,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 1321 transitions, 18483 flow, removed 14 selfloop flow, removed 40 redundant places. [2022-11-20 11:45:24,152 INFO L231 Difference]: Finished difference. Result has 540 places, 979 transitions, 14095 flow [2022-11-20 11:45:24,153 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=13139, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=263, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=692, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=14095, PETRI_PLACES=540, PETRI_TRANSITIONS=979} [2022-11-20 11:45:24,154 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 234 predicate places. [2022-11-20 11:45:24,154 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 979 transitions, 14095 flow [2022-11-20 11:45:24,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 129.1153846153846) internal successors, (3357), 26 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:24,155 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:45:24,155 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:45:24,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 11:45:24,156 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:45:24,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:45:24,157 INFO L85 PathProgramCache]: Analyzing trace with hash 2144213016, now seen corresponding path program 3 times [2022-11-20 11:45:24,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:45:24,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001264173] [2022-11-20 11:45:24,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:45:24,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:45:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:45:26,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:45:26,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:45:26,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001264173] [2022-11-20 11:45:26,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001264173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:45:26,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:45:26,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-20 11:45:26,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399649149] [2022-11-20 11:45:26,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:45:26,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-20 11:45:26,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:45:26,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 11:45:26,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:45:26,761 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 303 [2022-11-20 11:45:26,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 979 transitions, 14095 flow. Second operand has 24 states, 24 states have (on average 130.5) internal successors, (3132), 24 states have internal predecessors, (3132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:26,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:45:26,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 303 [2022-11-20 11:45:26,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:45:36,308 INFO L130 PetriNetUnfolder]: 3693/10854 cut-off events. [2022-11-20 11:45:36,308 INFO L131 PetriNetUnfolder]: For 96833/96839 co-relation queries the response was YES. [2022-11-20 11:45:36,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52668 conditions, 10854 events. 3693/10854 cut-off events. For 96833/96839 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 98683 event pairs, 574 based on Foata normal form. 10/10790 useless extension candidates. Maximal degree in co-relation 52460. Up to 2515 conditions per place. [2022-11-20 11:45:36,539 INFO L137 encePairwiseOnDemand]: 265/303 looper letters, 793 selfloop transitions, 306 changer transitions 33/1250 dead transitions. [2022-11-20 11:45:36,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 1250 transitions, 18190 flow [2022-11-20 11:45:36,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-20 11:45:36,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-20 11:45:36,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 5699 transitions. [2022-11-20 11:45:36,551 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44782335376394783 [2022-11-20 11:45:36,551 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 5699 transitions. [2022-11-20 11:45:36,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 5699 transitions. [2022-11-20 11:45:36,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:45:36,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 5699 transitions. [2022-11-20 11:45:36,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 135.6904761904762) internal successors, (5699), 42 states have internal predecessors, (5699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:36,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 303.0) internal successors, (13029), 43 states have internal predecessors, (13029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:36,590 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 303.0) internal successors, (13029), 43 states have internal predecessors, (13029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:36,591 INFO L175 Difference]: Start difference. First operand has 540 places, 979 transitions, 14095 flow. Second operand 42 states and 5699 transitions. [2022-11-20 11:45:36,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 1250 transitions, 18190 flow [2022-11-20 11:45:37,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 1250 transitions, 17564 flow, removed 27 selfloop flow, removed 42 redundant places. [2022-11-20 11:45:37,501 INFO L231 Difference]: Finished difference. Result has 544 places, 987 transitions, 14489 flow [2022-11-20 11:45:37,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=13479, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=979, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=298, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=673, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=14489, PETRI_PLACES=544, PETRI_TRANSITIONS=987} [2022-11-20 11:45:37,503 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 238 predicate places. [2022-11-20 11:45:37,504 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 987 transitions, 14489 flow [2022-11-20 11:45:37,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 130.5) internal successors, (3132), 24 states have internal predecessors, (3132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:37,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:45:37,505 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:45:37,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 11:45:37,506 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:45:37,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:45:37,507 INFO L85 PathProgramCache]: Analyzing trace with hash -239583710, now seen corresponding path program 1 times [2022-11-20 11:45:37,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:45:37,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952399374] [2022-11-20 11:45:37,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:45:37,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:45:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:45:43,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:45:43,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:45:43,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952399374] [2022-11-20 11:45:43,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952399374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:45:43,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:45:43,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-20 11:45:43,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353380194] [2022-11-20 11:45:43,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:45:43,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 11:45:43,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:45:43,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 11:45:43,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:45:43,848 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 303 [2022-11-20 11:45:43,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 987 transitions, 14489 flow. Second operand has 27 states, 27 states have (on average 127.92592592592592) internal successors, (3454), 27 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:43,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:45:43,852 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 303 [2022-11-20 11:45:43,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:45:55,555 INFO L130 PetriNetUnfolder]: 4093/12175 cut-off events. [2022-11-20 11:45:55,555 INFO L131 PetriNetUnfolder]: For 110783/110788 co-relation queries the response was YES. [2022-11-20 11:45:55,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58552 conditions, 12175 events. 4093/12175 cut-off events. For 110783/110788 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 111957 event pairs, 853 based on Foata normal form. 17/12095 useless extension candidates. Maximal degree in co-relation 58338. Up to 2096 conditions per place. [2022-11-20 11:45:56,051 INFO L137 encePairwiseOnDemand]: 267/303 looper letters, 1110 selfloop transitions, 197 changer transitions 142/1564 dead transitions. [2022-11-20 11:45:56,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1564 transitions, 23689 flow [2022-11-20 11:45:56,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-20 11:45:56,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-11-20 11:45:56,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 6690 transitions. [2022-11-20 11:45:56,067 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4415841584158416 [2022-11-20 11:45:56,067 INFO L72 ComplementDD]: Start complementDD. Operand 50 states and 6690 transitions. [2022-11-20 11:45:56,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 6690 transitions. [2022-11-20 11:45:56,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:45:56,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 50 states and 6690 transitions. [2022-11-20 11:45:56,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 51 states, 50 states have (on average 133.8) internal successors, (6690), 50 states have internal predecessors, (6690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:56,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 51 states, 51 states have (on average 303.0) internal successors, (15453), 51 states have internal predecessors, (15453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:56,113 INFO L81 ComplementDD]: Finished complementDD. Result has 51 states, 51 states have (on average 303.0) internal successors, (15453), 51 states have internal predecessors, (15453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:56,114 INFO L175 Difference]: Start difference. First operand has 544 places, 987 transitions, 14489 flow. Second operand 50 states and 6690 transitions. [2022-11-20 11:45:56,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1564 transitions, 23689 flow [2022-11-20 11:45:57,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 1564 transitions, 22890 flow, removed 165 selfloop flow, removed 43 redundant places. [2022-11-20 11:45:57,589 INFO L231 Difference]: Finished difference. Result has 561 places, 1031 transitions, 14773 flow [2022-11-20 11:45:57,591 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=13966, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=987, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=811, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=14773, PETRI_PLACES=561, PETRI_TRANSITIONS=1031} [2022-11-20 11:45:57,591 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 255 predicate places. [2022-11-20 11:45:57,592 INFO L495 AbstractCegarLoop]: Abstraction has has 561 places, 1031 transitions, 14773 flow [2022-11-20 11:45:57,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 127.92592592592592) internal successors, (3454), 27 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:57,593 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:45:57,593 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:45:57,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 11:45:57,594 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:45:57,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:45:57,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1735011815, now seen corresponding path program 1 times [2022-11-20 11:45:57,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:45:57,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420996171] [2022-11-20 11:45:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:45:57,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:45:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:46:00,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:46:00,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:46:00,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420996171] [2022-11-20 11:46:00,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420996171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:46:00,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:46:00,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-20 11:46:00,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66062606] [2022-11-20 11:46:00,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:46:00,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 11:46:00,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:46:00,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 11:46:00,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:46:00,945 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 303 [2022-11-20 11:46:00,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 1031 transitions, 14773 flow. Second operand has 27 states, 27 states have (on average 125.96296296296296) internal successors, (3401), 27 states have internal predecessors, (3401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:00,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:46:00,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 303 [2022-11-20 11:46:00,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:46:11,703 INFO L130 PetriNetUnfolder]: 4207/12198 cut-off events. [2022-11-20 11:46:11,704 INFO L131 PetriNetUnfolder]: For 105614/105621 co-relation queries the response was YES. [2022-11-20 11:46:11,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58915 conditions, 12198 events. 4207/12198 cut-off events. For 105614/105621 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 111526 event pairs, 1126 based on Foata normal form. 23/12122 useless extension candidates. Maximal degree in co-relation 58705. Up to 2215 conditions per place. [2022-11-20 11:46:11,919 INFO L137 encePairwiseOnDemand]: 257/303 looper letters, 953 selfloop transitions, 229 changer transitions 77/1372 dead transitions. [2022-11-20 11:46:11,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1372 transitions, 20916 flow [2022-11-20 11:46:11,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-20 11:46:11,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-11-20 11:46:11,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 5189 transitions. [2022-11-20 11:46:11,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4391131420834391 [2022-11-20 11:46:11,928 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 5189 transitions. [2022-11-20 11:46:11,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 5189 transitions. [2022-11-20 11:46:11,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:46:11,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 5189 transitions. [2022-11-20 11:46:11,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 133.05128205128204) internal successors, (5189), 39 states have internal predecessors, (5189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:11,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 303.0) internal successors, (12120), 40 states have internal predecessors, (12120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:11,952 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 303.0) internal successors, (12120), 40 states have internal predecessors, (12120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:11,952 INFO L175 Difference]: Start difference. First operand has 561 places, 1031 transitions, 14773 flow. Second operand 39 states and 5189 transitions. [2022-11-20 11:46:11,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1372 transitions, 20916 flow [2022-11-20 11:46:12,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 1372 transitions, 20675 flow, removed 4 selfloop flow, removed 25 redundant places. [2022-11-20 11:46:12,804 INFO L231 Difference]: Finished difference. Result has 574 places, 1040 transitions, 15329 flow [2022-11-20 11:46:12,806 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=14560, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1031, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=806, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=15329, PETRI_PLACES=574, PETRI_TRANSITIONS=1040} [2022-11-20 11:46:12,807 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 268 predicate places. [2022-11-20 11:46:12,807 INFO L495 AbstractCegarLoop]: Abstraction has has 574 places, 1040 transitions, 15329 flow [2022-11-20 11:46:12,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 125.96296296296296) internal successors, (3401), 27 states have internal predecessors, (3401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:12,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:46:12,808 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:46:12,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 11:46:12,809 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:46:12,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:46:12,809 INFO L85 PathProgramCache]: Analyzing trace with hash 672598014, now seen corresponding path program 2 times [2022-11-20 11:46:12,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:46:12,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290730550] [2022-11-20 11:46:12,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:46:12,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:46:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:46:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:46:16,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:46:16,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290730550] [2022-11-20 11:46:16,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290730550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:46:16,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:46:16,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-20 11:46:16,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27277219] [2022-11-20 11:46:16,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:46:16,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 11:46:16,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:46:16,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 11:46:16,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=622, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:46:16,914 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 303 [2022-11-20 11:46:16,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 1040 transitions, 15329 flow. Second operand has 27 states, 27 states have (on average 127.92592592592592) internal successors, (3454), 27 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:16,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:46:16,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 303 [2022-11-20 11:46:16,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:46:29,633 INFO L130 PetriNetUnfolder]: 4858/13991 cut-off events. [2022-11-20 11:46:29,633 INFO L131 PetriNetUnfolder]: For 140034/140041 co-relation queries the response was YES. [2022-11-20 11:46:29,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72100 conditions, 13991 events. 4858/13991 cut-off events. For 140034/140041 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 130487 event pairs, 1374 based on Foata normal form. 13/13889 useless extension candidates. Maximal degree in co-relation 71885. Up to 2096 conditions per place. [2022-11-20 11:46:29,880 INFO L137 encePairwiseOnDemand]: 260/303 looper letters, 1169 selfloop transitions, 239 changer transitions 27/1550 dead transitions. [2022-11-20 11:46:29,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 1550 transitions, 24633 flow [2022-11-20 11:46:29,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 11:46:29,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-20 11:46:29,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 5995 transitions. [2022-11-20 11:46:29,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43967730106343966 [2022-11-20 11:46:29,887 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 5995 transitions. [2022-11-20 11:46:29,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 5995 transitions. [2022-11-20 11:46:29,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:46:29,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 5995 transitions. [2022-11-20 11:46:29,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 133.22222222222223) internal successors, (5995), 45 states have internal predecessors, (5995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:29,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 303.0) internal successors, (13938), 46 states have internal predecessors, (13938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:29,908 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 303.0) internal successors, (13938), 46 states have internal predecessors, (13938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:29,908 INFO L175 Difference]: Start difference. First operand has 574 places, 1040 transitions, 15329 flow. Second operand 45 states and 5995 transitions. [2022-11-20 11:46:29,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 1550 transitions, 24633 flow [2022-11-20 11:46:30,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 1550 transitions, 24382 flow, removed 0 selfloop flow, removed 27 redundant places. [2022-11-20 11:46:30,879 INFO L231 Difference]: Finished difference. Result has 592 places, 1115 transitions, 17417 flow [2022-11-20 11:46:30,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=15097, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1040, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=814, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=17417, PETRI_PLACES=592, PETRI_TRANSITIONS=1115} [2022-11-20 11:46:30,882 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 286 predicate places. [2022-11-20 11:46:30,882 INFO L495 AbstractCegarLoop]: Abstraction has has 592 places, 1115 transitions, 17417 flow [2022-11-20 11:46:30,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 127.92592592592592) internal successors, (3454), 27 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:30,883 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:46:30,883 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:46:30,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 11:46:30,883 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-20 11:46:30,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:46:30,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1608910836, now seen corresponding path program 3 times [2022-11-20 11:46:30,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:46:30,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027986210] [2022-11-20 11:46:30,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:46:30,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:46:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:46:34,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:46:34,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:46:34,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027986210] [2022-11-20 11:46:34,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027986210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:46:34,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:46:34,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-20 11:46:34,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927462772] [2022-11-20 11:46:34,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:46:34,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 11:46:34,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:46:34,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 11:46:34,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:46:34,367 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 303 [2022-11-20 11:46:34,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 592 places, 1115 transitions, 17417 flow. Second operand has 27 states, 27 states have (on average 127.92592592592592) internal successors, (3454), 27 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:34,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:46:34,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 303 [2022-11-20 11:46:34,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:46:46,251 INFO L130 PetriNetUnfolder]: 4843/13960 cut-off events. [2022-11-20 11:46:46,251 INFO L131 PetriNetUnfolder]: For 149739/149743 co-relation queries the response was YES. [2022-11-20 11:46:46,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72912 conditions, 13960 events. 4843/13960 cut-off events. For 149739/149743 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 129809 event pairs, 1038 based on Foata normal form. 11/13831 useless extension candidates. Maximal degree in co-relation 72691. Up to 3212 conditions per place. [2022-11-20 11:46:46,817 INFO L137 encePairwiseOnDemand]: 270/303 looper letters, 1066 selfloop transitions, 126 changer transitions 118/1425 dead transitions. [2022-11-20 11:46:46,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 1425 transitions, 24392 flow [2022-11-20 11:46:46,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-20 11:46:46,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-11-20 11:46:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 5390 transitions. [2022-11-20 11:46:46,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43387265555823873 [2022-11-20 11:46:46,827 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 5390 transitions. [2022-11-20 11:46:46,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 5390 transitions. [2022-11-20 11:46:46,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:46:46,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 5390 transitions. [2022-11-20 11:46:46,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 131.46341463414635) internal successors, (5390), 41 states have internal predecessors, (5390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:46,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 303.0) internal successors, (12726), 42 states have internal predecessors, (12726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:46,848 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 303.0) internal successors, (12726), 42 states have internal predecessors, (12726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:46:46,848 INFO L175 Difference]: Start difference. First operand has 592 places, 1115 transitions, 17417 flow. Second operand 41 states and 5390 transitions. [2022-11-20 11:46:46,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 1425 transitions, 24392 flow