./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/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_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-18 19:40:18,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:40:18,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:40:18,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:40:18,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:40:18,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:40:18,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:40:18,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:40:18,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:40:18,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:40:18,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:40:18,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:40:18,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:40:18,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:40:18,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:40:18,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:40:18,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:40:18,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:40:18,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:40:18,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:40:18,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:40:18,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:40:18,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:40:18,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:40:18,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:40:18,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:40:18,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:40:18,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:40:18,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:40:18,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:40:18,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:40:18,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:40:18,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:40:18,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:40:18,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:40:18,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:40:18,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:40:18,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:40:18,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:40:18,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:40:18,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:40:18,886 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:40:18,910 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:40:18,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:40:18,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:40:18,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:40:18,912 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:40:18,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:40:18,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:40:18,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:40:18,913 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:40:18,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:40:18,914 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:40:18,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:40:18,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:40:18,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:40:18,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:40:18,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:40:18,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:40:18,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:40:18,917 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:40:18,917 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:40:18,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:40:18,917 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:40:18,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:40:18,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:40:18,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:40:18,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:40:18,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:40:18,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:40:18,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:40:18,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:40:18,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:40:18,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:40:18,921 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:40:18,921 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:40:18,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:40:18,922 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_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2022-11-18 19:40:19,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:40:19,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:40:19,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:40:19,306 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:40:19,307 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:40:19,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-18 19:40:19,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/data/d9c9e338c/5124d8c5211345c181e67e0f30c87f21/FLAG001762604 [2022-11-18 19:40:20,017 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:40:20,018 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-18 19:40:20,041 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/data/d9c9e338c/5124d8c5211345c181e67e0f30c87f21/FLAG001762604 [2022-11-18 19:40:20,271 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/data/d9c9e338c/5124d8c5211345c181e67e0f30c87f21 [2022-11-18 19:40:20,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:40:20,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:40:20,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:40:20,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:40:20,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:40:20,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:40:20" (1/1) ... [2022-11-18 19:40:20,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cfcffc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:20, skipping insertion in model container [2022-11-18 19:40:20,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:40:20" (1/1) ... [2022-11-18 19:40:20,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:40:20,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:40:20,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:40:20,997 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:40:21,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:40:21,139 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:40:21,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21 WrapperNode [2022-11-18 19:40:21,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:40:21,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:40:21,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:40:21,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:40:21,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (1/1) ... [2022-11-18 19:40:21,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (1/1) ... [2022-11-18 19:40:21,259 INFO L138 Inliner]: procedures = 368, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 196 [2022-11-18 19:40:21,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:40:21,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:40:21,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:40:21,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:40:21,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (1/1) ... [2022-11-18 19:40:21,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (1/1) ... [2022-11-18 19:40:21,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (1/1) ... [2022-11-18 19:40:21,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (1/1) ... [2022-11-18 19:40:21,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (1/1) ... [2022-11-18 19:40:21,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (1/1) ... [2022-11-18 19:40:21,351 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (1/1) ... [2022-11-18 19:40:21,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (1/1) ... [2022-11-18 19:40:21,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:40:21,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:40:21,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:40:21,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:40:21,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (1/1) ... [2022-11-18 19:40:21,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:40:21,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:21,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:40:21,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d88b2826-a54e-4920-b336-a1298486c636/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:40:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:40:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:40:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:40:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:40:21,455 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:40:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:40:21,459 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:40:21,706 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:40:21,723 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:40:22,310 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:40:22,320 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:40:22,321 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:40:22,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:40:22 BoogieIcfgContainer [2022-11-18 19:40:22,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:40:22,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:40:22,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:40:22,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:40:22,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:40:20" (1/3) ... [2022-11-18 19:40:22,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485c3ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:40:22, skipping insertion in model container [2022-11-18 19:40:22,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:21" (2/3) ... [2022-11-18 19:40:22,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485c3ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:40:22, skipping insertion in model container [2022-11-18 19:40:22,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:40:22" (3/3) ... [2022-11-18 19:40:22,332 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2022-11-18 19:40:22,340 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:40:22,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:40:22,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-18 19:40:22,351 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:40:22,462 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:40:22,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 307 places, 303 transitions, 611 flow [2022-11-18 19:40:22,706 INFO L130 PetriNetUnfolder]: 0/302 cut-off events. [2022-11-18 19:40:22,706 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:40:22,711 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. [2022-11-18 19:40:22,712 INFO L82 GeneralOperation]: Start removeDead. Operand has 307 places, 303 transitions, 611 flow [2022-11-18 19:40:22,733 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 302 transitions, 607 flow [2022-11-18 19:40:22,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:40:22,751 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;@17c3ee55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:40:22,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-18 19:40:22,759 INFO L130 PetriNetUnfolder]: 0/39 cut-off events. [2022-11-18 19:40:22,759 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:40:22,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:22,760 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] [2022-11-18 19:40:22,761 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)] === [2022-11-18 19:40:22,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:22,766 INFO L85 PathProgramCache]: Analyzing trace with hash 284887678, now seen corresponding path program 1 times [2022-11-18 19:40:22,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:22,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660621432] [2022-11-18 19:40:22,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:22,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:23,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:23,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:23,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660621432] [2022-11-18 19:40:23,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660621432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:23,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:23,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:23,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412110612] [2022-11-18 19:40:23,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:23,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:23,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:23,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:23,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:23,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 303 [2022-11-18 19:40:23,818 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) [2022-11-18 19:40:23,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:23,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 303 [2022-11-18 19:40:23,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:25,202 INFO L130 PetriNetUnfolder]: 864/2863 cut-off events. [2022-11-18 19:40:25,202 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:40:25,212 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. [2022-11-18 19:40:25,230 INFO L137 encePairwiseOnDemand]: 279/303 looper letters, 121 selfloop transitions, 20 changer transitions 0/298 dead transitions. [2022-11-18 19:40:25,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 298 transitions, 881 flow [2022-11-18 19:40:25,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:25,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1093 transitions. [2022-11-18 19:40:25,256 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6012101210121013 [2022-11-18 19:40:25,256 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1093 transitions. [2022-11-18 19:40:25,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1093 transitions. [2022-11-18 19:40:25,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:25,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1093 transitions. [2022-11-18 19:40:25,270 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) [2022-11-18 19:40:25,281 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) [2022-11-18 19:40:25,283 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) [2022-11-18 19:40:25,284 INFO L175 Difference]: Start difference. First operand has 306 places, 302 transitions, 607 flow. Second operand 6 states and 1093 transitions. [2022-11-18 19:40:25,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 298 transitions, 881 flow [2022-11-18 19:40:25,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 298 transitions, 880 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:25,301 INFO L231 Difference]: Finished difference. Result has 306 places, 298 transitions, 638 flow [2022-11-18 19:40:25,303 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} [2022-11-18 19:40:25,309 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 0 predicate places. [2022-11-18 19:40:25,310 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 298 transitions, 638 flow [2022-11-18 19:40:25,311 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) [2022-11-18 19:40:25,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:25,312 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] [2022-11-18 19:40:25,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:40:25,312 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)] === [2022-11-18 19:40:25,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:25,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1527628294, now seen corresponding path program 1 times [2022-11-18 19:40:25,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:25,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056579210] [2022-11-18 19:40:25,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:25,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:26,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:26,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056579210] [2022-11-18 19:40:26,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056579210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:26,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:26,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:26,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968106507] [2022-11-18 19:40:26,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:26,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:26,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:26,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:26,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:26,040 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 303 [2022-11-18 19:40:26,042 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) [2022-11-18 19:40:26,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:26,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 303 [2022-11-18 19:40:26,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:27,100 INFO L130 PetriNetUnfolder]: 864/2859 cut-off events. [2022-11-18 19:40:27,100 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 19:40:27,104 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. [2022-11-18 19:40:27,116 INFO L137 encePairwiseOnDemand]: 279/303 looper letters, 117 selfloop transitions, 20 changer transitions 0/294 dead transitions. [2022-11-18 19:40:27,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 294 transitions, 904 flow [2022-11-18 19:40:27,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:27,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:27,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1089 transitions. [2022-11-18 19:40:27,120 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.599009900990099 [2022-11-18 19:40:27,120 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1089 transitions. [2022-11-18 19:40:27,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1089 transitions. [2022-11-18 19:40:27,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:27,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1089 transitions. [2022-11-18 19:40:27,125 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) [2022-11-18 19:40:27,129 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) [2022-11-18 19:40:27,130 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) [2022-11-18 19:40:27,130 INFO L175 Difference]: Start difference. First operand has 306 places, 298 transitions, 638 flow. Second operand 6 states and 1089 transitions. [2022-11-18 19:40:27,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 294 transitions, 904 flow [2022-11-18 19:40:27,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 294 transitions, 864 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:40:27,142 INFO L231 Difference]: Finished difference. Result has 302 places, 294 transitions, 630 flow [2022-11-18 19:40:27,143 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} [2022-11-18 19:40:27,143 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -4 predicate places. [2022-11-18 19:40:27,144 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 294 transitions, 630 flow [2022-11-18 19:40:27,145 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) [2022-11-18 19:40:27,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:27,145 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] [2022-11-18 19:40:27,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:40:27,146 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)] === [2022-11-18 19:40:27,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:27,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1091436279, now seen corresponding path program 1 times [2022-11-18 19:40:27,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:27,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490259890] [2022-11-18 19:40:27,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:27,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:27,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:27,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490259890] [2022-11-18 19:40:27,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490259890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:27,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:27,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:27,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647594637] [2022-11-18 19:40:27,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:27,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:27,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:27,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:27,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:27,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 303 [2022-11-18 19:40:27,243 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) [2022-11-18 19:40:27,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:27,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 303 [2022-11-18 19:40:27,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:27,389 INFO L130 PetriNetUnfolder]: 9/521 cut-off events. [2022-11-18 19:40:27,389 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:40:27,389 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. [2022-11-18 19:40:27,391 INFO L137 encePairwiseOnDemand]: 300/303 looper letters, 16 selfloop transitions, 2 changer transitions 0/293 dead transitions. [2022-11-18 19:40:27,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 293 transitions, 664 flow [2022-11-18 19:40:27,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:27,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:27,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 871 transitions. [2022-11-18 19:40:27,396 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9581958195819582 [2022-11-18 19:40:27,396 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 871 transitions. [2022-11-18 19:40:27,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 871 transitions. [2022-11-18 19:40:27,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:27,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 871 transitions. [2022-11-18 19:40:27,401 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) [2022-11-18 19:40:27,403 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) [2022-11-18 19:40:27,404 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) [2022-11-18 19:40:27,404 INFO L175 Difference]: Start difference. First operand has 302 places, 294 transitions, 630 flow. Second operand 3 states and 871 transitions. [2022-11-18 19:40:27,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 293 transitions, 664 flow [2022-11-18 19:40:27,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 293 transitions, 624 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:40:27,410 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 592 flow [2022-11-18 19:40:27,410 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} [2022-11-18 19:40:27,413 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -8 predicate places. [2022-11-18 19:40:27,413 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 592 flow [2022-11-18 19:40:27,413 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) [2022-11-18 19:40:27,414 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:27,414 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] [2022-11-18 19:40:27,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:40:27,414 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)] === [2022-11-18 19:40:27,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:27,415 INFO L85 PathProgramCache]: Analyzing trace with hash 93249018, now seen corresponding path program 1 times [2022-11-18 19:40:27,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:27,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891831991] [2022-11-18 19:40:27,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:27,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:27,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:27,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891831991] [2022-11-18 19:40:27,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891831991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:27,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:27,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:27,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647132451] [2022-11-18 19:40:27,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:27,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:27,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:27,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:27,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:27,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2022-11-18 19:40:27,491 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) [2022-11-18 19:40:27,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:27,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2022-11-18 19:40:27,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:27,583 INFO L130 PetriNetUnfolder]: 4/458 cut-off events. [2022-11-18 19:40:27,584 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:40:27,584 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. [2022-11-18 19:40:27,586 INFO L137 encePairwiseOnDemand]: 298/303 looper letters, 10 selfloop transitions, 1 changer transitions 0/289 dead transitions. [2022-11-18 19:40:27,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 289 transitions, 606 flow [2022-11-18 19:40:27,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:27,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 876 transitions. [2022-11-18 19:40:27,589 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9636963696369637 [2022-11-18 19:40:27,589 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 876 transitions. [2022-11-18 19:40:27,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 876 transitions. [2022-11-18 19:40:27,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:27,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 876 transitions. [2022-11-18 19:40:27,597 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) [2022-11-18 19:40:27,599 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) [2022-11-18 19:40:27,600 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) [2022-11-18 19:40:27,600 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 592 flow. Second operand 3 states and 876 transitions. [2022-11-18 19:40:27,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 289 transitions, 606 flow [2022-11-18 19:40:27,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 289 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:27,607 INFO L231 Difference]: Finished difference. Result has 294 places, 289 transitions, 582 flow [2022-11-18 19:40:27,608 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} [2022-11-18 19:40:27,609 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -12 predicate places. [2022-11-18 19:40:27,611 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 289 transitions, 582 flow [2022-11-18 19:40:27,612 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) [2022-11-18 19:40:27,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:27,612 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] [2022-11-18 19:40:27,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:40:27,613 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)] === [2022-11-18 19:40:27,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:27,614 INFO L85 PathProgramCache]: Analyzing trace with hash -201752547, now seen corresponding path program 1 times [2022-11-18 19:40:27,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:27,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677419043] [2022-11-18 19:40:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:27,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:28,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:28,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677419043] [2022-11-18 19:40:28,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677419043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:28,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:28,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:28,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577026171] [2022-11-18 19:40:28,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:28,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:28,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:28,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:28,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:28,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 303 [2022-11-18 19:40:28,302 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) [2022-11-18 19:40:28,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:28,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 303 [2022-11-18 19:40:28,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:29,306 INFO L130 PetriNetUnfolder]: 925/3025 cut-off events. [2022-11-18 19:40:29,307 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:40:29,312 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. [2022-11-18 19:40:29,324 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 116 selfloop transitions, 5 changer transitions 0/288 dead transitions. [2022-11-18 19:40:29,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 288 transitions, 822 flow [2022-11-18 19:40:29,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:29,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1160 transitions. [2022-11-18 19:40:29,329 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6380638063806381 [2022-11-18 19:40:29,329 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1160 transitions. [2022-11-18 19:40:29,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1160 transitions. [2022-11-18 19:40:29,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:29,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1160 transitions. [2022-11-18 19:40:29,333 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) [2022-11-18 19:40:29,337 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) [2022-11-18 19:40:29,338 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) [2022-11-18 19:40:29,338 INFO L175 Difference]: Start difference. First operand has 294 places, 289 transitions, 582 flow. Second operand 6 states and 1160 transitions. [2022-11-18 19:40:29,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 288 transitions, 822 flow [2022-11-18 19:40:29,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 288 transitions, 821 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:29,345 INFO L231 Difference]: Finished difference. Result has 297 places, 288 transitions, 589 flow [2022-11-18 19:40:29,346 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} [2022-11-18 19:40:29,347 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -9 predicate places. [2022-11-18 19:40:29,347 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 288 transitions, 589 flow [2022-11-18 19:40:29,348 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) [2022-11-18 19:40:29,348 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:29,348 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] [2022-11-18 19:40:29,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:40:29,348 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)] === [2022-11-18 19:40:29,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:29,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1414360581, now seen corresponding path program 1 times [2022-11-18 19:40:29,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:29,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727033255] [2022-11-18 19:40:29,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:29,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:29,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:29,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727033255] [2022-11-18 19:40:29,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727033255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:29,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:29,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:29,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034344329] [2022-11-18 19:40:29,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:29,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:29,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:29,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:29,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:29,445 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 303 [2022-11-18 19:40:29,447 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) [2022-11-18 19:40:29,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:29,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 303 [2022-11-18 19:40:29,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:29,541 INFO L130 PetriNetUnfolder]: 9/420 cut-off events. [2022-11-18 19:40:29,541 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:40:29,541 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. [2022-11-18 19:40:29,543 INFO L137 encePairwiseOnDemand]: 300/303 looper letters, 16 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2022-11-18 19:40:29,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 287 transitions, 623 flow [2022-11-18 19:40:29,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:29,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:29,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 871 transitions. [2022-11-18 19:40:29,545 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9581958195819582 [2022-11-18 19:40:29,546 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 871 transitions. [2022-11-18 19:40:29,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 871 transitions. [2022-11-18 19:40:29,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:29,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 871 transitions. [2022-11-18 19:40:29,548 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) [2022-11-18 19:40:29,550 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) [2022-11-18 19:40:29,551 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) [2022-11-18 19:40:29,551 INFO L175 Difference]: Start difference. First operand has 297 places, 288 transitions, 589 flow. Second operand 3 states and 871 transitions. [2022-11-18 19:40:29,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 287 transitions, 623 flow [2022-11-18 19:40:29,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 287 transitions, 613 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:40:29,556 INFO L231 Difference]: Finished difference. Result has 293 places, 287 transitions, 581 flow [2022-11-18 19:40:29,557 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} [2022-11-18 19:40:29,558 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -13 predicate places. [2022-11-18 19:40:29,558 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 287 transitions, 581 flow [2022-11-18 19:40:29,559 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) [2022-11-18 19:40:29,559 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:29,559 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] [2022-11-18 19:40:29,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:40:29,559 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)] === [2022-11-18 19:40:29,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:29,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1964613657, now seen corresponding path program 1 times [2022-11-18 19:40:29,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:29,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198398730] [2022-11-18 19:40:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:29,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:29,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:29,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:29,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198398730] [2022-11-18 19:40:29,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198398730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:29,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:29,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:29,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071358627] [2022-11-18 19:40:29,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:29,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:29,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:29,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:29,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:29,634 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2022-11-18 19:40:29,635 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) [2022-11-18 19:40:29,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:29,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2022-11-18 19:40:29,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:29,699 INFO L130 PetriNetUnfolder]: 4/376 cut-off events. [2022-11-18 19:40:29,699 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:40:29,700 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. [2022-11-18 19:40:29,701 INFO L137 encePairwiseOnDemand]: 298/303 looper letters, 10 selfloop transitions, 1 changer transitions 0/283 dead transitions. [2022-11-18 19:40:29,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 283 transitions, 595 flow [2022-11-18 19:40:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 876 transitions. [2022-11-18 19:40:29,704 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9636963696369637 [2022-11-18 19:40:29,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 876 transitions. [2022-11-18 19:40:29,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 876 transitions. [2022-11-18 19:40:29,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:29,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 876 transitions. [2022-11-18 19:40:29,708 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) [2022-11-18 19:40:29,710 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) [2022-11-18 19:40:29,710 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) [2022-11-18 19:40:29,711 INFO L175 Difference]: Start difference. First operand has 293 places, 287 transitions, 581 flow. Second operand 3 states and 876 transitions. [2022-11-18 19:40:29,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 283 transitions, 595 flow [2022-11-18 19:40:29,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 283 transitions, 591 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:29,716 INFO L231 Difference]: Finished difference. Result has 289 places, 283 transitions, 571 flow [2022-11-18 19:40:29,717 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} [2022-11-18 19:40:29,717 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -17 predicate places. [2022-11-18 19:40:29,718 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 283 transitions, 571 flow [2022-11-18 19:40:29,718 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) [2022-11-18 19:40:29,718 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:29,719 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] [2022-11-18 19:40:29,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:40:29,719 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)] === [2022-11-18 19:40:29,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:29,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1205484295, now seen corresponding path program 1 times [2022-11-18 19:40:29,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:29,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746921106] [2022-11-18 19:40:29,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:29,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:30,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:30,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746921106] [2022-11-18 19:40:30,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746921106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:30,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:30,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:30,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494334980] [2022-11-18 19:40:30,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:30,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:30,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:30,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:30,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:30,620 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 303 [2022-11-18 19:40:30,621 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) [2022-11-18 19:40:30,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:30,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 303 [2022-11-18 19:40:30,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:31,367 INFO L130 PetriNetUnfolder]: 925/2936 cut-off events. [2022-11-18 19:40:31,367 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:40:31,372 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. [2022-11-18 19:40:31,384 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 115 selfloop transitions, 5 changer transitions 0/282 dead transitions. [2022-11-18 19:40:31,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 282 transitions, 809 flow [2022-11-18 19:40:31,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:31,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1159 transitions. [2022-11-18 19:40:31,388 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6375137513751375 [2022-11-18 19:40:31,388 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1159 transitions. [2022-11-18 19:40:31,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1159 transitions. [2022-11-18 19:40:31,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:31,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1159 transitions. [2022-11-18 19:40:31,392 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) [2022-11-18 19:40:31,395 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) [2022-11-18 19:40:31,396 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) [2022-11-18 19:40:31,396 INFO L175 Difference]: Start difference. First operand has 289 places, 283 transitions, 571 flow. Second operand 6 states and 1159 transitions. [2022-11-18 19:40:31,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 282 transitions, 809 flow [2022-11-18 19:40:31,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 282 transitions, 808 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:31,402 INFO L231 Difference]: Finished difference. Result has 292 places, 282 transitions, 578 flow [2022-11-18 19:40:31,403 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} [2022-11-18 19:40:31,403 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -14 predicate places. [2022-11-18 19:40:31,404 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 282 transitions, 578 flow [2022-11-18 19:40:31,404 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) [2022-11-18 19:40:31,405 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:31,405 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] [2022-11-18 19:40:31,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:40:31,405 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)] === [2022-11-18 19:40:31,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2091426316, now seen corresponding path program 1 times [2022-11-18 19:40:31,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:31,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609960659] [2022-11-18 19:40:31,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:31,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:32,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:32,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:32,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609960659] [2022-11-18 19:40:32,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609960659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:32,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:32,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:32,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425259973] [2022-11-18 19:40:32,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:32,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:32,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:32,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:32,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:32,219 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 303 [2022-11-18 19:40:32,221 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) [2022-11-18 19:40:32,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:32,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 303 [2022-11-18 19:40:32,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:33,761 INFO L130 PetriNetUnfolder]: 1392/4471 cut-off events. [2022-11-18 19:40:33,762 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:40:33,768 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. [2022-11-18 19:40:33,786 INFO L137 encePairwiseOnDemand]: 284/303 looper letters, 220 selfloop transitions, 38 changer transitions 0/423 dead transitions. [2022-11-18 19:40:33,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 423 transitions, 1376 flow [2022-11-18 19:40:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:33,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:33,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1316 transitions. [2022-11-18 19:40:33,791 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7238723872387238 [2022-11-18 19:40:33,791 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1316 transitions. [2022-11-18 19:40:33,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1316 transitions. [2022-11-18 19:40:33,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:33,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1316 transitions. [2022-11-18 19:40:33,796 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) [2022-11-18 19:40:33,800 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) [2022-11-18 19:40:33,801 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) [2022-11-18 19:40:33,802 INFO L175 Difference]: Start difference. First operand has 292 places, 282 transitions, 578 flow. Second operand 6 states and 1316 transitions. [2022-11-18 19:40:33,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 423 transitions, 1376 flow [2022-11-18 19:40:33,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 423 transitions, 1366 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:40:33,811 INFO L231 Difference]: Finished difference. Result has 296 places, 318 transitions, 826 flow [2022-11-18 19:40:33,812 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} [2022-11-18 19:40:33,813 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -10 predicate places. [2022-11-18 19:40:33,813 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 318 transitions, 826 flow [2022-11-18 19:40:33,814 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) [2022-11-18 19:40:33,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:33,814 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] [2022-11-18 19:40:33,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:40:33,815 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)] === [2022-11-18 19:40:33,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:33,815 INFO L85 PathProgramCache]: Analyzing trace with hash -191995944, now seen corresponding path program 1 times [2022-11-18 19:40:33,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:33,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75593447] [2022-11-18 19:40:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:33,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:34,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:34,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75593447] [2022-11-18 19:40:34,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75593447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:34,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:34,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:34,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106232714] [2022-11-18 19:40:34,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:34,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:34,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:34,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:34,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:34,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 303 [2022-11-18 19:40:34,782 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) [2022-11-18 19:40:34,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:34,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 303 [2022-11-18 19:40:34,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:36,157 INFO L130 PetriNetUnfolder]: 1425/4573 cut-off events. [2022-11-18 19:40:36,159 INFO L131 PetriNetUnfolder]: For 1048/1048 co-relation queries the response was YES. [2022-11-18 19:40:36,169 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. [2022-11-18 19:40:36,193 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 237 selfloop transitions, 5 changer transitions 0/409 dead transitions. [2022-11-18 19:40:36,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 409 transitions, 1532 flow [2022-11-18 19:40:36,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:36,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1274 transitions. [2022-11-18 19:40:36,197 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7007700770077008 [2022-11-18 19:40:36,197 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1274 transitions. [2022-11-18 19:40:36,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1274 transitions. [2022-11-18 19:40:36,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:36,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1274 transitions. [2022-11-18 19:40:36,201 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) [2022-11-18 19:40:36,204 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) [2022-11-18 19:40:36,205 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) [2022-11-18 19:40:36,206 INFO L175 Difference]: Start difference. First operand has 296 places, 318 transitions, 826 flow. Second operand 6 states and 1274 transitions. [2022-11-18 19:40:36,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 409 transitions, 1532 flow [2022-11-18 19:40:36,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 409 transitions, 1532 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:40:36,217 INFO L231 Difference]: Finished difference. Result has 300 places, 317 transitions, 834 flow [2022-11-18 19:40:36,219 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} [2022-11-18 19:40:36,220 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -6 predicate places. [2022-11-18 19:40:36,220 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 317 transitions, 834 flow [2022-11-18 19:40:36,221 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) [2022-11-18 19:40:36,222 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:36,222 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] [2022-11-18 19:40:36,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:40:36,222 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)] === [2022-11-18 19:40:36,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:36,223 INFO L85 PathProgramCache]: Analyzing trace with hash 577247079, now seen corresponding path program 1 times [2022-11-18 19:40:36,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:36,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179054888] [2022-11-18 19:40:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:36,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:36,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:36,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:36,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179054888] [2022-11-18 19:40:36,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179054888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:36,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:36,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:36,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489877219] [2022-11-18 19:40:36,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:36,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:36,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:36,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:36,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:36,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 303 [2022-11-18 19:40:36,917 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) [2022-11-18 19:40:36,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:36,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 303 [2022-11-18 19:40:36,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:38,736 INFO L130 PetriNetUnfolder]: 1814/5681 cut-off events. [2022-11-18 19:40:38,736 INFO L131 PetriNetUnfolder]: For 1339/1343 co-relation queries the response was YES. [2022-11-18 19:40:38,754 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. [2022-11-18 19:40:38,772 INFO L137 encePairwiseOnDemand]: 282/303 looper letters, 265 selfloop transitions, 71 changer transitions 0/496 dead transitions. [2022-11-18 19:40:38,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 496 transitions, 2120 flow [2022-11-18 19:40:38,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:38,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:38,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1299 transitions. [2022-11-18 19:40:38,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7145214521452146 [2022-11-18 19:40:38,777 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1299 transitions. [2022-11-18 19:40:38,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1299 transitions. [2022-11-18 19:40:38,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:38,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1299 transitions. [2022-11-18 19:40:38,781 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) [2022-11-18 19:40:38,793 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) [2022-11-18 19:40:38,802 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) [2022-11-18 19:40:38,802 INFO L175 Difference]: Start difference. First operand has 300 places, 317 transitions, 834 flow. Second operand 6 states and 1299 transitions. [2022-11-18 19:40:38,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 496 transitions, 2120 flow [2022-11-18 19:40:38,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 496 transitions, 2070 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:40:38,817 INFO L231 Difference]: Finished difference. Result has 305 places, 386 transitions, 1482 flow [2022-11-18 19:40:38,817 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} [2022-11-18 19:40:38,818 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, -1 predicate places. [2022-11-18 19:40:38,818 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 386 transitions, 1482 flow [2022-11-18 19:40:38,819 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) [2022-11-18 19:40:38,819 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:38,819 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] [2022-11-18 19:40:38,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:40:38,819 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)] === [2022-11-18 19:40:38,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:38,820 INFO L85 PathProgramCache]: Analyzing trace with hash -69555747, now seen corresponding path program 1 times [2022-11-18 19:40:38,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:38,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835677407] [2022-11-18 19:40:38,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:38,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:39,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:39,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:39,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835677407] [2022-11-18 19:40:39,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835677407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:39,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:39,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:39,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823990730] [2022-11-18 19:40:39,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:39,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:39,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:39,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:39,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:39,522 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 303 [2022-11-18 19:40:39,523 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) [2022-11-18 19:40:39,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:39,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 303 [2022-11-18 19:40:39,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:41,480 INFO L130 PetriNetUnfolder]: 1933/6144 cut-off events. [2022-11-18 19:40:41,480 INFO L131 PetriNetUnfolder]: For 3618/3665 co-relation queries the response was YES. [2022-11-18 19:40:41,497 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. [2022-11-18 19:40:41,519 INFO L137 encePairwiseOnDemand]: 280/303 looper letters, 250 selfloop transitions, 89 changer transitions 0/505 dead transitions. [2022-11-18 19:40:41,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 505 transitions, 2680 flow [2022-11-18 19:40:41,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:41,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:41,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1273 transitions. [2022-11-18 19:40:41,524 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7002200220022002 [2022-11-18 19:40:41,524 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1273 transitions. [2022-11-18 19:40:41,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1273 transitions. [2022-11-18 19:40:41,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:41,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1273 transitions. [2022-11-18 19:40:41,529 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) [2022-11-18 19:40:41,533 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) [2022-11-18 19:40:41,534 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) [2022-11-18 19:40:41,534 INFO L175 Difference]: Start difference. First operand has 305 places, 386 transitions, 1482 flow. Second operand 6 states and 1273 transitions. [2022-11-18 19:40:41,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 505 transitions, 2680 flow [2022-11-18 19:40:41,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 505 transitions, 2680 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:40:41,559 INFO L231 Difference]: Finished difference. Result has 315 places, 470 transitions, 2284 flow [2022-11-18 19:40:41,559 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} [2022-11-18 19:40:41,561 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 9 predicate places. [2022-11-18 19:40:41,561 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 470 transitions, 2284 flow [2022-11-18 19:40:41,562 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) [2022-11-18 19:40:41,562 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:41,562 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] [2022-11-18 19:40:41,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:40:41,563 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)] === [2022-11-18 19:40:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:41,564 INFO L85 PathProgramCache]: Analyzing trace with hash -644301971, now seen corresponding path program 1 times [2022-11-18 19:40:41,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:41,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382826162] [2022-11-18 19:40:41,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:41,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:41,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:41,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:41,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382826162] [2022-11-18 19:40:41,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382826162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:41,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:41,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:40:41,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382644622] [2022-11-18 19:40:41,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:41,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:41,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:41,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:41,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:41,856 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 303 [2022-11-18 19:40:41,858 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) [2022-11-18 19:40:41,858 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:41,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 303 [2022-11-18 19:40:41,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:42,307 INFO L130 PetriNetUnfolder]: 283/1927 cut-off events. [2022-11-18 19:40:42,307 INFO L131 PetriNetUnfolder]: For 1060/1137 co-relation queries the response was YES. [2022-11-18 19:40:42,313 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. [2022-11-18 19:40:42,321 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 15 selfloop transitions, 6 changer transitions 0/410 dead transitions. [2022-11-18 19:40:42,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 410 transitions, 1762 flow [2022-11-18 19:40:42,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:42,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:42,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 887 transitions. [2022-11-18 19:40:42,325 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9757975797579758 [2022-11-18 19:40:42,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 887 transitions. [2022-11-18 19:40:42,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 887 transitions. [2022-11-18 19:40:42,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:42,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 887 transitions. [2022-11-18 19:40:42,329 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) [2022-11-18 19:40:42,331 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) [2022-11-18 19:40:42,332 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) [2022-11-18 19:40:42,332 INFO L175 Difference]: Start difference. First operand has 315 places, 470 transitions, 2284 flow. Second operand 3 states and 887 transitions. [2022-11-18 19:40:42,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 410 transitions, 1762 flow [2022-11-18 19:40:42,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 410 transitions, 1674 flow, removed 44 selfloop flow, removed 0 redundant places. [2022-11-18 19:40:42,354 INFO L231 Difference]: Finished difference. Result has 318 places, 408 transitions, 1654 flow [2022-11-18 19:40:42,355 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} [2022-11-18 19:40:42,356 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 12 predicate places. [2022-11-18 19:40:42,356 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 408 transitions, 1654 flow [2022-11-18 19:40:42,357 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) [2022-11-18 19:40:42,357 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:42,357 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] [2022-11-18 19:40:42,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:40:42,358 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)] === [2022-11-18 19:40:42,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:42,358 INFO L85 PathProgramCache]: Analyzing trace with hash -200260275, now seen corresponding path program 1 times [2022-11-18 19:40:42,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:42,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746467589] [2022-11-18 19:40:42,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:42,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:43,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:43,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:43,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746467589] [2022-11-18 19:40:43,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746467589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:43,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:43,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:43,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78452657] [2022-11-18 19:40:43,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:43,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:43,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:43,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:43,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:43,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 303 [2022-11-18 19:40:43,176 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) [2022-11-18 19:40:43,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:43,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 303 [2022-11-18 19:40:43,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:44,827 INFO L130 PetriNetUnfolder]: 1230/4315 cut-off events. [2022-11-18 19:40:44,827 INFO L131 PetriNetUnfolder]: For 3311/3340 co-relation queries the response was YES. [2022-11-18 19:40:44,843 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. [2022-11-18 19:40:44,857 INFO L137 encePairwiseOnDemand]: 284/303 looper letters, 386 selfloop transitions, 124 changer transitions 4/684 dead transitions. [2022-11-18 19:40:44,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 684 transitions, 4248 flow [2022-11-18 19:40:44,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:44,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:44,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1361 transitions. [2022-11-18 19:40:44,861 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7486248624862486 [2022-11-18 19:40:44,861 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1361 transitions. [2022-11-18 19:40:44,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1361 transitions. [2022-11-18 19:40:44,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:44,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1361 transitions. [2022-11-18 19:40:44,865 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) [2022-11-18 19:40:44,868 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) [2022-11-18 19:40:44,869 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) [2022-11-18 19:40:44,870 INFO L175 Difference]: Start difference. First operand has 318 places, 408 transitions, 1654 flow. Second operand 6 states and 1361 transitions. [2022-11-18 19:40:44,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 684 transitions, 4248 flow [2022-11-18 19:40:44,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 684 transitions, 4242 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:44,897 INFO L231 Difference]: Finished difference. Result has 326 places, 510 transitions, 3030 flow [2022-11-18 19:40:44,898 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} [2022-11-18 19:40:44,898 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 20 predicate places. [2022-11-18 19:40:44,898 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 510 transitions, 3030 flow [2022-11-18 19:40:44,899 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) [2022-11-18 19:40:44,899 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:44,899 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] [2022-11-18 19:40:44,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:40:44,900 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)] === [2022-11-18 19:40:44,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:44,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1820254003, now seen corresponding path program 1 times [2022-11-18 19:40:44,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:44,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738684569] [2022-11-18 19:40:44,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:44,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:45,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:45,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:45,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738684569] [2022-11-18 19:40:45,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738684569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:45,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:45,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:45,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597828233] [2022-11-18 19:40:45,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:45,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:45,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:45,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:45,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:45,623 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 303 [2022-11-18 19:40:45,624 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) [2022-11-18 19:40:45,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:45,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 303 [2022-11-18 19:40:45,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:47,197 INFO L130 PetriNetUnfolder]: 1281/4379 cut-off events. [2022-11-18 19:40:47,197 INFO L131 PetriNetUnfolder]: For 6070/6110 co-relation queries the response was YES. [2022-11-18 19:40:47,208 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. [2022-11-18 19:40:47,219 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 420 selfloop transitions, 17 changer transitions 0/609 dead transitions. [2022-11-18 19:40:47,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 609 transitions, 4494 flow [2022-11-18 19:40:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:47,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:47,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1264 transitions. [2022-11-18 19:40:47,223 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6952695269526953 [2022-11-18 19:40:47,224 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1264 transitions. [2022-11-18 19:40:47,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1264 transitions. [2022-11-18 19:40:47,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:47,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1264 transitions. [2022-11-18 19:40:47,227 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) [2022-11-18 19:40:47,231 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) [2022-11-18 19:40:47,232 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) [2022-11-18 19:40:47,232 INFO L175 Difference]: Start difference. First operand has 326 places, 510 transitions, 3030 flow. Second operand 6 states and 1264 transitions. [2022-11-18 19:40:47,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 609 transitions, 4494 flow [2022-11-18 19:40:47,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 609 transitions, 4476 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-18 19:40:47,267 INFO L231 Difference]: Finished difference. Result has 330 places, 509 transitions, 3044 flow [2022-11-18 19:40:47,268 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} [2022-11-18 19:40:47,269 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 24 predicate places. [2022-11-18 19:40:47,269 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 509 transitions, 3044 flow [2022-11-18 19:40:47,269 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) [2022-11-18 19:40:47,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:47,270 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] [2022-11-18 19:40:47,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:40:47,270 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)] === [2022-11-18 19:40:47,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:47,271 INFO L85 PathProgramCache]: Analyzing trace with hash -765243550, now seen corresponding path program 1 times [2022-11-18 19:40:47,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:47,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454283284] [2022-11-18 19:40:47,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:47,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:49,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:49,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454283284] [2022-11-18 19:40:49,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454283284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:49,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:49,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-18 19:40:49,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673367614] [2022-11-18 19:40:49,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:49,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 19:40:49,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:49,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 19:40:49,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:40:50,002 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 303 [2022-11-18 19:40:50,005 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) [2022-11-18 19:40:50,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:50,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 303 [2022-11-18 19:40:50,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:53,790 INFO L130 PetriNetUnfolder]: 1780/5443 cut-off events. [2022-11-18 19:40:53,790 INFO L131 PetriNetUnfolder]: For 6924/6926 co-relation queries the response was YES. [2022-11-18 19:40:53,804 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. [2022-11-18 19:40:53,818 INFO L137 encePairwiseOnDemand]: 268/303 looper letters, 510 selfloop transitions, 109 changer transitions 1/735 dead transitions. [2022-11-18 19:40:53,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 735 transitions, 5524 flow [2022-11-18 19:40:53,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-18 19:40:53,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-18 19:40:53,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 4921 transitions. [2022-11-18 19:40:53,832 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4389438943894389 [2022-11-18 19:40:53,832 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 4921 transitions. [2022-11-18 19:40:53,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 4921 transitions. [2022-11-18 19:40:53,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:53,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 4921 transitions. [2022-11-18 19:40:53,846 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) [2022-11-18 19:40:53,864 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) [2022-11-18 19:40:53,867 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) [2022-11-18 19:40:53,868 INFO L175 Difference]: Start difference. First operand has 330 places, 509 transitions, 3044 flow. Second operand 37 states and 4921 transitions. [2022-11-18 19:40:53,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 735 transitions, 5524 flow [2022-11-18 19:40:53,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 735 transitions, 5476 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:40:53,911 INFO L231 Difference]: Finished difference. Result has 368 places, 544 transitions, 3543 flow [2022-11-18 19:40:53,912 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} [2022-11-18 19:40:53,912 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 62 predicate places. [2022-11-18 19:40:53,912 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 544 transitions, 3543 flow [2022-11-18 19:40:53,913 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) [2022-11-18 19:40:53,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:53,914 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] [2022-11-18 19:40:53,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:40:53,914 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)] === [2022-11-18 19:40:53,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:53,915 INFO L85 PathProgramCache]: Analyzing trace with hash 825588598, now seen corresponding path program 1 times [2022-11-18 19:40:53,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:53,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374947511] [2022-11-18 19:40:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:53,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:57,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:57,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:57,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374947511] [2022-11-18 19:40:57,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374947511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:57,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:57,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 19:40:57,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163823190] [2022-11-18 19:40:57,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:57,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 19:40:57,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:57,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 19:40:57,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2022-11-18 19:40:57,212 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 303 [2022-11-18 19:40:57,216 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) [2022-11-18 19:40:57,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:57,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 303 [2022-11-18 19:40:57,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:01,557 INFO L130 PetriNetUnfolder]: 2170/6752 cut-off events. [2022-11-18 19:41:01,557 INFO L131 PetriNetUnfolder]: For 12305/12313 co-relation queries the response was YES. [2022-11-18 19:41:01,578 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. [2022-11-18 19:41:01,592 INFO L137 encePairwiseOnDemand]: 263/303 looper letters, 670 selfloop transitions, 148 changer transitions 3/938 dead transitions. [2022-11-18 19:41:01,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 938 transitions, 7798 flow [2022-11-18 19:41:01,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 19:41:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-18 19:41:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 4695 transitions. [2022-11-18 19:41:01,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4557367501456028 [2022-11-18 19:41:01,604 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 4695 transitions. [2022-11-18 19:41:01,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 4695 transitions. [2022-11-18 19:41:01,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:01,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 4695 transitions. [2022-11-18 19:41:01,615 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) [2022-11-18 19:41:01,628 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) [2022-11-18 19:41:01,632 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) [2022-11-18 19:41:01,632 INFO L175 Difference]: Start difference. First operand has 368 places, 544 transitions, 3543 flow. Second operand 34 states and 4695 transitions. [2022-11-18 19:41:01,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 938 transitions, 7798 flow [2022-11-18 19:41:01,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 938 transitions, 7745 flow, removed 6 selfloop flow, removed 17 redundant places. [2022-11-18 19:41:01,702 INFO L231 Difference]: Finished difference. Result has 395 places, 622 transitions, 4916 flow [2022-11-18 19:41:01,703 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} [2022-11-18 19:41:01,703 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 89 predicate places. [2022-11-18 19:41:01,703 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 622 transitions, 4916 flow [2022-11-18 19:41:01,705 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) [2022-11-18 19:41:01,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:01,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:01,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:41:01,705 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)] === [2022-11-18 19:41:01,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:01,706 INFO L85 PathProgramCache]: Analyzing trace with hash -904445542, now seen corresponding path program 2 times [2022-11-18 19:41:01,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:01,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732408565] [2022-11-18 19:41:01,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:01,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:04,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:04,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:04,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732408565] [2022-11-18 19:41:04,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732408565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:04,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:04,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-18 19:41:04,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513777427] [2022-11-18 19:41:04,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:04,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 19:41:04,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:04,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 19:41:04,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:41:04,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 303 [2022-11-18 19:41:04,401 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) [2022-11-18 19:41:04,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:04,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 303 [2022-11-18 19:41:04,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:10,133 INFO L130 PetriNetUnfolder]: 2337/7199 cut-off events. [2022-11-18 19:41:10,133 INFO L131 PetriNetUnfolder]: For 17838/17851 co-relation queries the response was YES. [2022-11-18 19:41:10,165 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. [2022-11-18 19:41:10,181 INFO L137 encePairwiseOnDemand]: 264/303 looper letters, 707 selfloop transitions, 203 changer transitions 4/1030 dead transitions. [2022-11-18 19:41:10,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1030 transitions, 9564 flow [2022-11-18 19:41:10,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-18 19:41:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-18 19:41:10,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 6316 transitions. [2022-11-18 19:41:10,199 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44350818060529457 [2022-11-18 19:41:10,199 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 6316 transitions. [2022-11-18 19:41:10,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 6316 transitions. [2022-11-18 19:41:10,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:10,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 6316 transitions. [2022-11-18 19:41:10,213 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) [2022-11-18 19:41:10,233 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) [2022-11-18 19:41:10,238 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) [2022-11-18 19:41:10,239 INFO L175 Difference]: Start difference. First operand has 395 places, 622 transitions, 4916 flow. Second operand 47 states and 6316 transitions. [2022-11-18 19:41:10,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 1030 transitions, 9564 flow [2022-11-18 19:41:10,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 1030 transitions, 9499 flow, removed 14 selfloop flow, removed 17 redundant places. [2022-11-18 19:41:10,373 INFO L231 Difference]: Finished difference. Result has 439 places, 700 transitions, 6208 flow [2022-11-18 19:41:10,374 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} [2022-11-18 19:41:10,376 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 133 predicate places. [2022-11-18 19:41:10,376 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 700 transitions, 6208 flow [2022-11-18 19:41:10,378 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) [2022-11-18 19:41:10,378 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:10,378 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] [2022-11-18 19:41:10,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 19:41:10,378 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)] === [2022-11-18 19:41:10,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:10,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1267914500, now seen corresponding path program 3 times [2022-11-18 19:41:10,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:10,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180955831] [2022-11-18 19:41:10,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:10,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:13,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:13,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:13,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180955831] [2022-11-18 19:41:13,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180955831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:13,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:13,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-18 19:41:13,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173572460] [2022-11-18 19:41:13,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:13,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-18 19:41:13,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:13,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-18 19:41:13,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2022-11-18 19:41:13,330 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 303 [2022-11-18 19:41:13,333 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) [2022-11-18 19:41:13,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:13,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 303 [2022-11-18 19:41:13,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:19,666 INFO L130 PetriNetUnfolder]: 2817/8517 cut-off events. [2022-11-18 19:41:19,666 INFO L131 PetriNetUnfolder]: For 27871/27883 co-relation queries the response was YES. [2022-11-18 19:41:19,725 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. [2022-11-18 19:41:19,745 INFO L137 encePairwiseOnDemand]: 260/303 looper letters, 872 selfloop transitions, 235 changer transitions 4/1227 dead transitions. [2022-11-18 19:41:19,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 1227 transitions, 12501 flow [2022-11-18 19:41:19,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-18 19:41:19,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-18 19:41:19,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 5763 transitions. [2022-11-18 19:41:19,755 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45285242809995285 [2022-11-18 19:41:19,755 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 5763 transitions. [2022-11-18 19:41:19,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 5763 transitions. [2022-11-18 19:41:19,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:19,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 5763 transitions. [2022-11-18 19:41:19,768 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) [2022-11-18 19:41:19,781 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) [2022-11-18 19:41:19,785 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) [2022-11-18 19:41:19,786 INFO L175 Difference]: Start difference. First operand has 439 places, 700 transitions, 6208 flow. Second operand 42 states and 5763 transitions. [2022-11-18 19:41:19,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 1227 transitions, 12501 flow [2022-11-18 19:41:20,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 1227 transitions, 12283 flow, removed 23 selfloop flow, removed 26 redundant places. [2022-11-18 19:41:20,018 INFO L231 Difference]: Finished difference. Result has 465 places, 783 transitions, 8100 flow [2022-11-18 19:41:20,019 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} [2022-11-18 19:41:20,020 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 159 predicate places. [2022-11-18 19:41:20,020 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 783 transitions, 8100 flow [2022-11-18 19:41:20,021 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) [2022-11-18 19:41:20,021 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:20,022 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] [2022-11-18 19:41:20,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 19:41:20,022 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)] === [2022-11-18 19:41:20,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:20,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1664535180, now seen corresponding path program 4 times [2022-11-18 19:41:20,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:20,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203806163] [2022-11-18 19:41:20,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:20,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:22,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:22,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203806163] [2022-11-18 19:41:22,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203806163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:22,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:22,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-18 19:41:22,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777813731] [2022-11-18 19:41:22,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:22,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 19:41:22,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:22,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 19:41:22,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:41:22,529 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 303 [2022-11-18 19:41:22,532 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) [2022-11-18 19:41:22,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:22,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 303 [2022-11-18 19:41:22,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:29,678 INFO L130 PetriNetUnfolder]: 3322/9965 cut-off events. [2022-11-18 19:41:29,678 INFO L131 PetriNetUnfolder]: For 43798/43812 co-relation queries the response was YES. [2022-11-18 19:41:29,751 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. [2022-11-18 19:41:29,774 INFO L137 encePairwiseOnDemand]: 260/303 looper letters, 937 selfloop transitions, 302 changer transitions 4/1359 dead transitions. [2022-11-18 19:41:29,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 1359 transitions, 15630 flow [2022-11-18 19:41:29,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-18 19:41:29,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-11-18 19:41:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 6032 transitions. [2022-11-18 19:41:29,784 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45244524452445245 [2022-11-18 19:41:29,785 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 6032 transitions. [2022-11-18 19:41:29,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 6032 transitions. [2022-11-18 19:41:29,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:29,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 6032 transitions. [2022-11-18 19:41:29,796 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) [2022-11-18 19:41:29,810 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) [2022-11-18 19:41:29,815 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) [2022-11-18 19:41:29,815 INFO L175 Difference]: Start difference. First operand has 465 places, 783 transitions, 8100 flow. Second operand 44 states and 6032 transitions. [2022-11-18 19:41:29,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 1359 transitions, 15630 flow [2022-11-18 19:41:30,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1359 transitions, 15519 flow, removed 19 selfloop flow, removed 22 redundant places. [2022-11-18 19:41:30,368 INFO L231 Difference]: Finished difference. Result has 502 places, 886 transitions, 10886 flow [2022-11-18 19:41:30,369 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} [2022-11-18 19:41:30,369 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 196 predicate places. [2022-11-18 19:41:30,370 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 886 transitions, 10886 flow [2022-11-18 19:41:30,370 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) [2022-11-18 19:41:30,370 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:30,370 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] [2022-11-18 19:41:30,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 19:41:30,371 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)] === [2022-11-18 19:41:30,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:30,371 INFO L85 PathProgramCache]: Analyzing trace with hash 43241426, now seen corresponding path program 5 times [2022-11-18 19:41:30,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:30,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965319287] [2022-11-18 19:41:30,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:30,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:32,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:32,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965319287] [2022-11-18 19:41:32,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965319287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:32,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:32,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 19:41:32,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687920209] [2022-11-18 19:41:32,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:32,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 19:41:32,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:32,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 19:41:32,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-11-18 19:41:32,613 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 303 [2022-11-18 19:41:32,616 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) [2022-11-18 19:41:32,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:32,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 303 [2022-11-18 19:41:32,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:40,241 INFO L130 PetriNetUnfolder]: 3726/11203 cut-off events. [2022-11-18 19:41:40,241 INFO L131 PetriNetUnfolder]: For 64933/64949 co-relation queries the response was YES. [2022-11-18 19:41:40,369 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. [2022-11-18 19:41:40,396 INFO L137 encePairwiseOnDemand]: 263/303 looper letters, 860 selfloop transitions, 336 changer transitions 3/1317 dead transitions. [2022-11-18 19:41:40,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 1317 transitions, 17230 flow [2022-11-18 19:41:40,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-18 19:41:40,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-18 19:41:40,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 5101 transitions. [2022-11-18 19:41:40,405 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.454999554009455 [2022-11-18 19:41:40,405 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 5101 transitions. [2022-11-18 19:41:40,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 5101 transitions. [2022-11-18 19:41:40,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:40,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 5101 transitions. [2022-11-18 19:41:40,415 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) [2022-11-18 19:41:40,425 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) [2022-11-18 19:41:40,427 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) [2022-11-18 19:41:40,427 INFO L175 Difference]: Start difference. First operand has 502 places, 886 transitions, 10886 flow. Second operand 37 states and 5101 transitions. [2022-11-18 19:41:40,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 1317 transitions, 17230 flow [2022-11-18 19:41:41,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 1317 transitions, 17087 flow, removed 50 selfloop flow, removed 19 redundant places. [2022-11-18 19:41:41,103 INFO L231 Difference]: Finished difference. Result has 530 places, 962 transitions, 13615 flow [2022-11-18 19:41:41,104 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} [2022-11-18 19:41:41,104 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 224 predicate places. [2022-11-18 19:41:41,104 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 962 transitions, 13615 flow [2022-11-18 19:41:41,105 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) [2022-11-18 19:41:41,105 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:41,105 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] [2022-11-18 19:41:41,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 19:41:41,105 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)] === [2022-11-18 19:41:41,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:41,106 INFO L85 PathProgramCache]: Analyzing trace with hash 829458002, now seen corresponding path program 1 times [2022-11-18 19:41:41,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:41,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653212055] [2022-11-18 19:41:41,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:41,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:41,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:41,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:41,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653212055] [2022-11-18 19:41:41,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653212055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:41,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:41,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:41:41,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768940587] [2022-11-18 19:41:41,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:41,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:41:41,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:41,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:41:41,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:41:41,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 303 [2022-11-18 19:41:41,759 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) [2022-11-18 19:41:41,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:41,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 303 [2022-11-18 19:41:41,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:46,198 INFO L130 PetriNetUnfolder]: 3002/10075 cut-off events. [2022-11-18 19:41:46,198 INFO L131 PetriNetUnfolder]: For 71076/71260 co-relation queries the response was YES. [2022-11-18 19:41:46,312 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. [2022-11-18 19:41:46,334 INFO L137 encePairwiseOnDemand]: 280/303 looper letters, 620 selfloop transitions, 95 changer transitions 105/1096 dead transitions. [2022-11-18 19:41:46,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 1096 transitions, 16417 flow [2022-11-18 19:41:46,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:41:46,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:41:46,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1271 transitions. [2022-11-18 19:41:46,337 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6991199119911992 [2022-11-18 19:41:46,337 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1271 transitions. [2022-11-18 19:41:46,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1271 transitions. [2022-11-18 19:41:46,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:46,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1271 transitions. [2022-11-18 19:41:46,340 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) [2022-11-18 19:41:46,342 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) [2022-11-18 19:41:46,343 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) [2022-11-18 19:41:46,343 INFO L175 Difference]: Start difference. First operand has 530 places, 962 transitions, 13615 flow. Second operand 6 states and 1271 transitions. [2022-11-18 19:41:46,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 1096 transitions, 16417 flow [2022-11-18 19:41:46,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 1096 transitions, 16277 flow, removed 46 selfloop flow, removed 19 redundant places. [2022-11-18 19:41:46,907 INFO L231 Difference]: Finished difference. Result has 521 places, 958 transitions, 13119 flow [2022-11-18 19:41:46,908 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} [2022-11-18 19:41:46,908 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 215 predicate places. [2022-11-18 19:41:46,908 INFO L495 AbstractCegarLoop]: Abstraction has has 521 places, 958 transitions, 13119 flow [2022-11-18 19:41:46,908 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) [2022-11-18 19:41:46,908 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:46,909 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] [2022-11-18 19:41:46,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 19:41:46,909 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)] === [2022-11-18 19:41:46,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:46,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1932228252, now seen corresponding path program 1 times [2022-11-18 19:41:46,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:46,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881766098] [2022-11-18 19:41:46,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:46,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:49,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:49,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:49,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881766098] [2022-11-18 19:41:49,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881766098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:49,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:49,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-18 19:41:49,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463312953] [2022-11-18 19:41:49,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:49,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 19:41:49,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:49,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 19:41:49,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:41:49,465 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 303 [2022-11-18 19:41:49,466 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) [2022-11-18 19:41:49,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:49,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 303 [2022-11-18 19:41:49,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:57,436 INFO L130 PetriNetUnfolder]: 3694/10944 cut-off events. [2022-11-18 19:41:57,436 INFO L131 PetriNetUnfolder]: For 86666/86671 co-relation queries the response was YES. [2022-11-18 19:41:57,583 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. [2022-11-18 19:41:57,610 INFO L137 encePairwiseOnDemand]: 264/303 looper letters, 890 selfloop transitions, 269 changer transitions 28/1303 dead transitions. [2022-11-18 19:41:57,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 1303 transitions, 18475 flow [2022-11-18 19:41:57,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-18 19:41:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-11-18 19:41:57,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 5914 transitions. [2022-11-18 19:41:57,618 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4435943594359436 [2022-11-18 19:41:57,618 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 5914 transitions. [2022-11-18 19:41:57,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 5914 transitions. [2022-11-18 19:41:57,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:57,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 5914 transitions. [2022-11-18 19:41:57,629 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) [2022-11-18 19:41:57,641 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) [2022-11-18 19:41:57,643 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) [2022-11-18 19:41:57,643 INFO L175 Difference]: Start difference. First operand has 521 places, 958 transitions, 13119 flow. Second operand 44 states and 5914 transitions. [2022-11-18 19:41:57,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 1303 transitions, 18475 flow [2022-11-18 19:41:58,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 1303 transitions, 17941 flow, removed 199 selfloop flow, removed 11 redundant places. [2022-11-18 19:41:58,343 INFO L231 Difference]: Finished difference. Result has 532 places, 967 transitions, 13609 flow [2022-11-18 19:41:58,344 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} [2022-11-18 19:41:58,344 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 226 predicate places. [2022-11-18 19:41:58,344 INFO L495 AbstractCegarLoop]: Abstraction has has 532 places, 967 transitions, 13609 flow [2022-11-18 19:41:58,345 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) [2022-11-18 19:41:58,345 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:58,345 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] [2022-11-18 19:41:58,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 19:41:58,346 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)] === [2022-11-18 19:41:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash -186821822, now seen corresponding path program 2 times [2022-11-18 19:41:58,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:58,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680614970] [2022-11-18 19:41:58,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:58,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:00,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:00,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680614970] [2022-11-18 19:42:00,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680614970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:00,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:00,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-18 19:42:00,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600091655] [2022-11-18 19:42:00,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:00,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 19:42:00,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:00,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 19:42:00,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:42:00,675 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 303 [2022-11-18 19:42:00,677 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) [2022-11-18 19:42:00,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:42:00,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 303 [2022-11-18 19:42:00,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:42:08,736 INFO L130 PetriNetUnfolder]: 3724/11012 cut-off events. [2022-11-18 19:42:08,736 INFO L131 PetriNetUnfolder]: For 95077/95082 co-relation queries the response was YES. [2022-11-18 19:42:08,829 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. [2022-11-18 19:42:08,856 INFO L137 encePairwiseOnDemand]: 263/303 looper letters, 902 selfloop transitions, 275 changer transitions 28/1321 dead transitions. [2022-11-18 19:42:08,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 1321 transitions, 18961 flow [2022-11-18 19:42:08,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 19:42:08,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-18 19:42:08,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 6044 transitions. [2022-11-18 19:42:08,865 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4432709937660433 [2022-11-18 19:42:08,865 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 6044 transitions. [2022-11-18 19:42:08,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 6044 transitions. [2022-11-18 19:42:08,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:42:08,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 6044 transitions. [2022-11-18 19:42:08,876 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) [2022-11-18 19:42:08,888 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) [2022-11-18 19:42:08,891 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) [2022-11-18 19:42:08,891 INFO L175 Difference]: Start difference. First operand has 532 places, 967 transitions, 13609 flow. Second operand 45 states and 6044 transitions. [2022-11-18 19:42:08,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 1321 transitions, 18961 flow [2022-11-18 19:42:09,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 1321 transitions, 18483 flow, removed 14 selfloop flow, removed 40 redundant places. [2022-11-18 19:42:09,640 INFO L231 Difference]: Finished difference. Result has 540 places, 979 transitions, 14095 flow [2022-11-18 19:42:09,641 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} [2022-11-18 19:42:09,641 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 234 predicate places. [2022-11-18 19:42:09,641 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 979 transitions, 14095 flow [2022-11-18 19:42:09,642 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) [2022-11-18 19:42:09,642 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:42:09,642 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] [2022-11-18 19:42:09,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 19:42:09,643 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)] === [2022-11-18 19:42:09,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:09,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2144213016, now seen corresponding path program 3 times [2022-11-18 19:42:09,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:09,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334735431] [2022-11-18 19:42:09,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:09,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:11,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:11,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:11,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334735431] [2022-11-18 19:42:11,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334735431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:11,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:11,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-18 19:42:11,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650493265] [2022-11-18 19:42:11,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:11,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 19:42:11,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:11,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 19:42:11,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:42:11,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 303 [2022-11-18 19:42:11,721 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) [2022-11-18 19:42:11,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:42:11,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 303 [2022-11-18 19:42:11,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:42:19,833 INFO L130 PetriNetUnfolder]: 3693/10854 cut-off events. [2022-11-18 19:42:19,834 INFO L131 PetriNetUnfolder]: For 96833/96839 co-relation queries the response was YES. [2022-11-18 19:42:19,981 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. [2022-11-18 19:42:20,014 INFO L137 encePairwiseOnDemand]: 265/303 looper letters, 793 selfloop transitions, 306 changer transitions 33/1250 dead transitions. [2022-11-18 19:42:20,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 1250 transitions, 18190 flow [2022-11-18 19:42:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-18 19:42:20,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-18 19:42:20,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 5699 transitions. [2022-11-18 19:42:20,023 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44782335376394783 [2022-11-18 19:42:20,023 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 5699 transitions. [2022-11-18 19:42:20,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 5699 transitions. [2022-11-18 19:42:20,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:42:20,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 5699 transitions. [2022-11-18 19:42:20,035 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) [2022-11-18 19:42:20,049 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) [2022-11-18 19:42:20,052 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) [2022-11-18 19:42:20,052 INFO L175 Difference]: Start difference. First operand has 540 places, 979 transitions, 14095 flow. Second operand 42 states and 5699 transitions. [2022-11-18 19:42:20,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 1250 transitions, 18190 flow [2022-11-18 19:42:20,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 1250 transitions, 17564 flow, removed 27 selfloop flow, removed 42 redundant places. [2022-11-18 19:42:20,787 INFO L231 Difference]: Finished difference. Result has 544 places, 987 transitions, 14489 flow [2022-11-18 19:42:20,788 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} [2022-11-18 19:42:20,788 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 238 predicate places. [2022-11-18 19:42:20,788 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 987 transitions, 14489 flow [2022-11-18 19:42:20,789 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) [2022-11-18 19:42:20,789 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:42:20,789 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] [2022-11-18 19:42:20,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 19:42:20,790 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)] === [2022-11-18 19:42:20,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:20,790 INFO L85 PathProgramCache]: Analyzing trace with hash -239583710, now seen corresponding path program 1 times [2022-11-18 19:42:20,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:20,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14931946] [2022-11-18 19:42:20,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:20,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:25,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:25,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:25,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14931946] [2022-11-18 19:42:25,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14931946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:25,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:25,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-18 19:42:25,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128374556] [2022-11-18 19:42:25,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:25,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-18 19:42:25,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:25,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-18 19:42:25,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2022-11-18 19:42:25,717 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 303 [2022-11-18 19:42:25,719 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) [2022-11-18 19:42:25,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:42:25,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 303 [2022-11-18 19:42:25,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:42:34,745 INFO L130 PetriNetUnfolder]: 4093/12175 cut-off events. [2022-11-18 19:42:34,746 INFO L131 PetriNetUnfolder]: For 110783/110788 co-relation queries the response was YES. [2022-11-18 19:42:34,926 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. [2022-11-18 19:42:34,957 INFO L137 encePairwiseOnDemand]: 267/303 looper letters, 1110 selfloop transitions, 197 changer transitions 142/1564 dead transitions. [2022-11-18 19:42:34,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1564 transitions, 23689 flow [2022-11-18 19:42:34,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-18 19:42:34,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-11-18 19:42:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 6690 transitions. [2022-11-18 19:42:34,966 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4415841584158416 [2022-11-18 19:42:34,967 INFO L72 ComplementDD]: Start complementDD. Operand 50 states and 6690 transitions. [2022-11-18 19:42:34,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 6690 transitions. [2022-11-18 19:42:34,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:42:34,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 50 states and 6690 transitions. [2022-11-18 19:42:34,978 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) [2022-11-18 19:42:34,991 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) [2022-11-18 19:42:34,994 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) [2022-11-18 19:42:34,995 INFO L175 Difference]: Start difference. First operand has 544 places, 987 transitions, 14489 flow. Second operand 50 states and 6690 transitions. [2022-11-18 19:42:34,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1564 transitions, 23689 flow [2022-11-18 19:42:35,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 1564 transitions, 22890 flow, removed 165 selfloop flow, removed 43 redundant places. [2022-11-18 19:42:36,012 INFO L231 Difference]: Finished difference. Result has 561 places, 1031 transitions, 14773 flow [2022-11-18 19:42:36,013 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} [2022-11-18 19:42:36,014 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 255 predicate places. [2022-11-18 19:42:36,014 INFO L495 AbstractCegarLoop]: Abstraction has has 561 places, 1031 transitions, 14773 flow [2022-11-18 19:42:36,014 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) [2022-11-18 19:42:36,015 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:42:36,015 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] [2022-11-18 19:42:36,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 19:42:36,015 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)] === [2022-11-18 19:42:36,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:36,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1735011815, now seen corresponding path program 1 times [2022-11-18 19:42:36,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:36,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798934929] [2022-11-18 19:42:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:36,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:38,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:38,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798934929] [2022-11-18 19:42:38,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798934929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:38,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:38,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-18 19:42:38,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073283885] [2022-11-18 19:42:38,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:38,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-18 19:42:38,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:38,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-18 19:42:38,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2022-11-18 19:42:38,933 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 303 [2022-11-18 19:42:38,936 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) [2022-11-18 19:42:38,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:42:38,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 303 [2022-11-18 19:42:38,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:42:47,379 INFO L130 PetriNetUnfolder]: 4207/12198 cut-off events. [2022-11-18 19:42:47,379 INFO L131 PetriNetUnfolder]: For 105614/105621 co-relation queries the response was YES. [2022-11-18 19:42:47,558 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. [2022-11-18 19:42:47,588 INFO L137 encePairwiseOnDemand]: 257/303 looper letters, 953 selfloop transitions, 229 changer transitions 77/1372 dead transitions. [2022-11-18 19:42:47,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1372 transitions, 20916 flow [2022-11-18 19:42:47,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-18 19:42:47,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-11-18 19:42:47,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 5189 transitions. [2022-11-18 19:42:47,595 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4391131420834391 [2022-11-18 19:42:47,596 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 5189 transitions. [2022-11-18 19:42:47,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 5189 transitions. [2022-11-18 19:42:47,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:42:47,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 5189 transitions. [2022-11-18 19:42:47,603 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) [2022-11-18 19:42:47,611 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) [2022-11-18 19:42:47,613 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) [2022-11-18 19:42:47,613 INFO L175 Difference]: Start difference. First operand has 561 places, 1031 transitions, 14773 flow. Second operand 39 states and 5189 transitions. [2022-11-18 19:42:47,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1372 transitions, 20916 flow [2022-11-18 19:42:48,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 1372 transitions, 20675 flow, removed 4 selfloop flow, removed 25 redundant places. [2022-11-18 19:42:48,262 INFO L231 Difference]: Finished difference. Result has 574 places, 1040 transitions, 15329 flow [2022-11-18 19:42:48,264 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} [2022-11-18 19:42:48,264 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 268 predicate places. [2022-11-18 19:42:48,264 INFO L495 AbstractCegarLoop]: Abstraction has has 574 places, 1040 transitions, 15329 flow [2022-11-18 19:42:48,265 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) [2022-11-18 19:42:48,265 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:42:48,266 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] [2022-11-18 19:42:48,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-18 19:42:48,266 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)] === [2022-11-18 19:42:48,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:48,266 INFO L85 PathProgramCache]: Analyzing trace with hash 672598014, now seen corresponding path program 2 times [2022-11-18 19:42:48,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:48,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601700561] [2022-11-18 19:42:48,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:48,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:51,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:51,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601700561] [2022-11-18 19:42:51,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601700561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:51,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:51,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-18 19:42:51,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407913596] [2022-11-18 19:42:51,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:51,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-18 19:42:51,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:51,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-18 19:42:51,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=622, Unknown=0, NotChecked=0, Total=702 [2022-11-18 19:42:51,602 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 303 [2022-11-18 19:42:51,603 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) [2022-11-18 19:42:51,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:42:51,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 303 [2022-11-18 19:42:51,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:01,601 INFO L130 PetriNetUnfolder]: 4858/13991 cut-off events. [2022-11-18 19:43:01,601 INFO L131 PetriNetUnfolder]: For 140034/140041 co-relation queries the response was YES. [2022-11-18 19:43:01,804 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. [2022-11-18 19:43:01,839 INFO L137 encePairwiseOnDemand]: 260/303 looper letters, 1169 selfloop transitions, 239 changer transitions 27/1550 dead transitions. [2022-11-18 19:43:01,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 1550 transitions, 24633 flow [2022-11-18 19:43:01,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 19:43:01,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-18 19:43:01,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 5995 transitions. [2022-11-18 19:43:01,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43967730106343966 [2022-11-18 19:43:01,846 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 5995 transitions. [2022-11-18 19:43:01,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 5995 transitions. [2022-11-18 19:43:01,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:01,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 5995 transitions. [2022-11-18 19:43:01,851 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) [2022-11-18 19:43:01,857 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) [2022-11-18 19:43:01,859 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) [2022-11-18 19:43:01,859 INFO L175 Difference]: Start difference. First operand has 574 places, 1040 transitions, 15329 flow. Second operand 45 states and 5995 transitions. [2022-11-18 19:43:01,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 1550 transitions, 24633 flow [2022-11-18 19:43:02,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 1550 transitions, 24382 flow, removed 0 selfloop flow, removed 27 redundant places. [2022-11-18 19:43:02,648 INFO L231 Difference]: Finished difference. Result has 592 places, 1115 transitions, 17417 flow [2022-11-18 19:43:02,649 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} [2022-11-18 19:43:02,649 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 286 predicate places. [2022-11-18 19:43:02,650 INFO L495 AbstractCegarLoop]: Abstraction has has 592 places, 1115 transitions, 17417 flow [2022-11-18 19:43:02,650 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) [2022-11-18 19:43:02,650 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:02,651 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] [2022-11-18 19:43:02,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-18 19:43:02,651 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)] === [2022-11-18 19:43:02,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:02,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1608910836, now seen corresponding path program 3 times [2022-11-18 19:43:02,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:02,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683049341] [2022-11-18 19:43:02,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:02,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:05,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:05,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:05,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683049341] [2022-11-18 19:43:05,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683049341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:05,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:05,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-18 19:43:05,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938403382] [2022-11-18 19:43:05,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:05,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-18 19:43:05,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:05,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-18 19:43:05,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-11-18 19:43:05,492 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 303 [2022-11-18 19:43:05,494 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) [2022-11-18 19:43:05,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:05,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 303 [2022-11-18 19:43:05,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:15,373 INFO L130 PetriNetUnfolder]: 4843/13960 cut-off events. [2022-11-18 19:43:15,373 INFO L131 PetriNetUnfolder]: For 149739/149743 co-relation queries the response was YES. [2022-11-18 19:43:15,586 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. [2022-11-18 19:43:15,619 INFO L137 encePairwiseOnDemand]: 270/303 looper letters, 1066 selfloop transitions, 126 changer transitions 118/1425 dead transitions. [2022-11-18 19:43:15,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 1425 transitions, 24392 flow [2022-11-18 19:43:15,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-18 19:43:15,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-11-18 19:43:15,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 5390 transitions. [2022-11-18 19:43:15,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43387265555823873 [2022-11-18 19:43:15,625 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 5390 transitions. [2022-11-18 19:43:15,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 5390 transitions. [2022-11-18 19:43:15,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:15,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 5390 transitions. [2022-11-18 19:43:15,629 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) [2022-11-18 19:43:15,638 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) [2022-11-18 19:43:15,640 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) [2022-11-18 19:43:15,641 INFO L175 Difference]: Start difference. First operand has 592 places, 1115 transitions, 17417 flow. Second operand 41 states and 5390 transitions. [2022-11-18 19:43:15,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 1425 transitions, 24392 flow [2022-11-18 19:43:16,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 604 places, 1425 transitions, 23858 flow, removed 31 selfloop flow, removed 27 redundant places. [2022-11-18 19:43:16,632 INFO L231 Difference]: Finished difference. Result has 604 places, 1114 transitions, 17190 flow [2022-11-18 19:43:16,633 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=16952, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=996, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=17190, PETRI_PLACES=604, PETRI_TRANSITIONS=1114} [2022-11-18 19:43:16,634 INFO L288 CegarLoopForPetriNet]: 306 programPoint places, 298 predicate places. [2022-11-18 19:43:16,634 INFO L495 AbstractCegarLoop]: Abstraction has has 604 places, 1114 transitions, 17190 flow [2022-11-18 19:43:16,635 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) [2022-11-18 19:43:16,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:16,635 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, 1] [2022-11-18 19:43:16,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-18 19:43:16,635 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-18 19:43:16,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:16,636 INFO L85 PathProgramCache]: Analyzing trace with hash 680838222, now seen corresponding path program 1 times [2022-11-18 19:43:16,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:16,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963844466] [2022-11-18 19:43:16,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:16,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat