./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.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_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/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_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/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_cc82c38d-b016-4dcf-be12-75b7bd04e84b/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 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --- 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 19:56:41,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:56:41,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:56:41,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:56:41,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:56:41,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:56:41,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:56:41,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:56:41,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:56:41,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:56:41,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:56:41,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:56:41,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:56:41,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:56:41,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:56:41,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:56:41,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:56:41,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:56:41,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:56:41,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:56:41,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:56:41,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:56:41,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:56:41,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:56:41,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:56:41,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:56:41,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:56:41,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:56:41,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:56:41,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:56:41,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:56:41,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:56:41,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:56:41,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:56:41,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:56:41,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:56:41,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:56:41,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:56:41,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:56:41,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:56:41,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:56:41,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:56:42,010 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:56:42,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:56:42,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:56:42,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:56:42,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:56:42,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:56:42,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:56:42,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:56:42,013 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:56:42,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:56:42,013 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:56:42,013 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:56:42,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:56:42,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:56:42,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:56:42,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:56:42,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:56:42,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:56:42,015 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:56:42,015 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:56:42,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:56:42,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:56:42,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:56:42,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:56:42,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:56:42,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:56:42,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:56:42,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:56:42,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:56:42,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:56:42,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:56:42,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:56:42,018 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:56:42,018 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:56:42,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:56:42,018 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_cc82c38d-b016-4dcf-be12-75b7bd04e84b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 [2022-11-18 19:56:42,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:56:42,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:56:42,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:56:42,423 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:56:42,425 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:56:42,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-18 19:56:42,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro/data/de0e50818/88f28b5626a84e52b85ee579d6896be0/FLAG30210cd0a [2022-11-18 19:56:43,116 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:56:43,117 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-18 19:56:43,139 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro/data/de0e50818/88f28b5626a84e52b85ee579d6896be0/FLAG30210cd0a [2022-11-18 19:56:43,342 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro/data/de0e50818/88f28b5626a84e52b85ee579d6896be0 [2022-11-18 19:56:43,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:56:43,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:56:43,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:56:43,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:56:43,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:56:43,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:56:43" (1/1) ... [2022-11-18 19:56:43,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab6798a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:43, skipping insertion in model container [2022-11-18 19:56:43,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:56:43" (1/1) ... [2022-11-18 19:56:43,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:56:43,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:56:44,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:56:44,032 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:56:44,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:56:44,183 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:56:44,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44 WrapperNode [2022-11-18 19:56:44,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:56:44,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:56:44,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:56:44,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:56:44,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (1/1) ... [2022-11-18 19:56:44,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (1/1) ... [2022-11-18 19:56:44,274 INFO L138 Inliner]: procedures = 368, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 174 [2022-11-18 19:56:44,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:56:44,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:56:44,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:56:44,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:56:44,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (1/1) ... [2022-11-18 19:56:44,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (1/1) ... [2022-11-18 19:56:44,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (1/1) ... [2022-11-18 19:56:44,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (1/1) ... [2022-11-18 19:56:44,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (1/1) ... [2022-11-18 19:56:44,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (1/1) ... [2022-11-18 19:56:44,316 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (1/1) ... [2022-11-18 19:56:44,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (1/1) ... [2022-11-18 19:56:44,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:56:44,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:56:44,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:56:44,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:56:44,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (1/1) ... [2022-11-18 19:56:44,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:56:44,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:56:44,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:56:44,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc82c38d-b016-4dcf-be12-75b7bd04e84b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:56:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:56:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:56:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:56:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:56:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:56:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:56:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:56:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:56:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:56:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:56:44,449 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:56:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:56:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:56:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:56:44,451 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 19:56:44,672 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:56:44,674 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:56:45,309 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:56:45,320 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:56:45,325 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:56:45,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:56:45 BoogieIcfgContainer [2022-11-18 19:56:45,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:56:45,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:56:45,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:56:45,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:56:45,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:56:43" (1/3) ... [2022-11-18 19:56:45,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b53a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:56:45, skipping insertion in model container [2022-11-18 19:56:45,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:44" (2/3) ... [2022-11-18 19:56:45,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b53a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:56:45, skipping insertion in model container [2022-11-18 19:56:45,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:56:45" (3/3) ... [2022-11-18 19:56:45,343 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2022-11-18 19:56:45,354 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:56:45,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:56:45,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-18 19:56:45,368 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:56:45,490 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:56:45,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 276 transitions, 557 flow [2022-11-18 19:56:45,659 INFO L130 PetriNetUnfolder]: 0/275 cut-off events. [2022-11-18 19:56:45,659 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:56:45,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 275 events. 0/275 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 155 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-18 19:56:45,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 276 transitions, 557 flow [2022-11-18 19:56:45,670 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 275 transitions, 553 flow [2022-11-18 19:56:45,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:56:45,686 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;@692bac4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:56:45,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-18 19:56:45,698 INFO L130 PetriNetUnfolder]: 0/39 cut-off events. [2022-11-18 19:56:45,699 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:56:45,699 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:45,700 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 19:56:45,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:56:45,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:45,706 INFO L85 PathProgramCache]: Analyzing trace with hash 453973923, now seen corresponding path program 1 times [2022-11-18 19:56:45,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:45,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014752711] [2022-11-18 19:56:45,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:45,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:46,571 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 19:56:46,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:46,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014752711] [2022-11-18 19:56:46,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014752711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:46,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:46,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:56:46,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479328905] [2022-11-18 19:56:46,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:46,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:56:46,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:46,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:56:46,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:56:46,619 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 276 [2022-11-18 19:56:46,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 275 transitions, 553 flow. Second operand has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states 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 19:56:46,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:46,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 276 [2022-11-18 19:56:46,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:56:47,783 INFO L130 PetriNetUnfolder]: 864/2835 cut-off events. [2022-11-18 19:56:47,783 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:56:47,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4692 conditions, 2835 events. 864/2835 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17865 event pairs, 864 based on Foata normal form. 0/2474 useless extension candidates. Maximal degree in co-relation 4476. Up to 1838 conditions per place. [2022-11-18 19:56:47,813 INFO L137 encePairwiseOnDemand]: 258/276 looper letters, 109 selfloop transitions, 15 changer transitions 0/272 dead transitions. [2022-11-18 19:56:47,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 272 transitions, 795 flow [2022-11-18 19:56:47,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:56:47,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:56:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1021 transitions. [2022-11-18 19:56:47,841 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6165458937198067 [2022-11-18 19:56:47,842 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1021 transitions. [2022-11-18 19:56:47,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1021 transitions. [2022-11-18 19:56:47,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:47,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1021 transitions. [2022-11-18 19:56:47,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.16666666666666) internal successors, (1021), 6 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states 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 19:56:47,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:47,866 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:47,868 INFO L175 Difference]: Start difference. First operand has 279 places, 275 transitions, 553 flow. Second operand 6 states and 1021 transitions. [2022-11-18 19:56:47,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 272 transitions, 795 flow [2022-11-18 19:56:47,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 272 transitions, 794 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:56:47,881 INFO L231 Difference]: Finished difference. Result has 280 places, 272 transitions, 576 flow [2022-11-18 19:56:47,883 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=576, PETRI_PLACES=280, PETRI_TRANSITIONS=272} [2022-11-18 19:56:47,888 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 1 predicate places. [2022-11-18 19:56:47,888 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 272 transitions, 576 flow [2022-11-18 19:56:47,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states 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 19:56:47,890 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:47,890 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 19:56:47,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:56:47,891 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:56:47,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:47,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1373225779, now seen corresponding path program 1 times [2022-11-18 19:56:47,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:47,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81453844] [2022-11-18 19:56:47,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:47,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:48,406 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 19:56:48,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:48,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81453844] [2022-11-18 19:56:48,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81453844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:48,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:48,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:56:48,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542819354] [2022-11-18 19:56:48,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:48,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:56:48,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:48,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:56:48,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:56:48,420 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 276 [2022-11-18 19:56:48,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 272 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states 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 19:56:48,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:48,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 276 [2022-11-18 19:56:48,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:56:49,286 INFO L130 PetriNetUnfolder]: 864/2832 cut-off events. [2022-11-18 19:56:49,286 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 19:56:49,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4701 conditions, 2832 events. 864/2832 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17889 event pairs, 864 based on Foata normal form. 0/2474 useless extension candidates. Maximal degree in co-relation 4518. Up to 1835 conditions per place. [2022-11-18 19:56:49,302 INFO L137 encePairwiseOnDemand]: 258/276 looper letters, 106 selfloop transitions, 15 changer transitions 0/269 dead transitions. [2022-11-18 19:56:49,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 269 transitions, 812 flow [2022-11-18 19:56:49,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:56:49,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:56:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1018 transitions. [2022-11-18 19:56:49,306 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6147342995169082 [2022-11-18 19:56:49,307 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1018 transitions. [2022-11-18 19:56:49,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1018 transitions. [2022-11-18 19:56:49,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:49,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1018 transitions. [2022-11-18 19:56:49,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states 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 19:56:49,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:49,316 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:49,316 INFO L175 Difference]: Start difference. First operand has 280 places, 272 transitions, 576 flow. Second operand 6 states and 1018 transitions. [2022-11-18 19:56:49,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 269 transitions, 812 flow [2022-11-18 19:56:49,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 269 transitions, 782 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:56:49,327 INFO L231 Difference]: Finished difference. Result has 277 places, 269 transitions, 570 flow [2022-11-18 19:56:49,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=277, PETRI_TRANSITIONS=269} [2022-11-18 19:56:49,329 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -2 predicate places. [2022-11-18 19:56:49,329 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 269 transitions, 570 flow [2022-11-18 19:56:49,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states 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 19:56:49,330 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:49,330 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 19:56:49,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:56:49,330 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:56:49,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:49,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1202444287, now seen corresponding path program 1 times [2022-11-18 19:56:49,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:49,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023280398] [2022-11-18 19:56:49,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:49,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:49,407 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 19:56:49,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:49,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023280398] [2022-11-18 19:56:49,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023280398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:49,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:49,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:56:49,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526467031] [2022-11-18 19:56:49,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:49,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:56:49,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:49,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:56:49,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:56:49,413 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 276 [2022-11-18 19:56:49,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 269 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states 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 19:56:49,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:49,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 276 [2022-11-18 19:56:49,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:56:49,533 INFO L130 PetriNetUnfolder]: 9/496 cut-off events. [2022-11-18 19:56:49,533 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:56:49,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 496 events. 9/496 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1501 event pairs, 9 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 397. Up to 35 conditions per place. [2022-11-18 19:56:49,536 INFO L137 encePairwiseOnDemand]: 273/276 looper letters, 16 selfloop transitions, 2 changer transitions 0/268 dead transitions. [2022-11-18 19:56:49,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 268 transitions, 604 flow [2022-11-18 19:56:49,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:56:49,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:56:49,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 790 transitions. [2022-11-18 19:56:49,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9541062801932367 [2022-11-18 19:56:49,539 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 790 transitions. [2022-11-18 19:56:49,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 790 transitions. [2022-11-18 19:56:49,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:49,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 790 transitions. [2022-11-18 19:56:49,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 0 states have call successors, (0), 0 states 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 19:56:49,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 19:56:49,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 19:56:49,546 INFO L175 Difference]: Start difference. First operand has 277 places, 269 transitions, 570 flow. Second operand 3 states and 790 transitions. [2022-11-18 19:56:49,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 268 transitions, 604 flow [2022-11-18 19:56:49,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 268 transitions, 574 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:56:49,552 INFO L231 Difference]: Finished difference. Result has 273 places, 268 transitions, 542 flow [2022-11-18 19:56:49,553 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=273, PETRI_TRANSITIONS=268} [2022-11-18 19:56:49,554 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -6 predicate places. [2022-11-18 19:56:49,554 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 268 transitions, 542 flow [2022-11-18 19:56:49,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states 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 19:56:49,555 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:49,555 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 19:56:49,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:56:49,556 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:56:49,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:49,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1560437014, now seen corresponding path program 1 times [2022-11-18 19:56:49,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:49,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294742491] [2022-11-18 19:56:49,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:49,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:49,626 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 19:56:49,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:49,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294742491] [2022-11-18 19:56:49,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294742491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:49,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:49,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:56:49,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872455269] [2022-11-18 19:56:49,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:49,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:56:49,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:49,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:56:49,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:56:49,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 276 [2022-11-18 19:56:49,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 268 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states 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 19:56:49,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:49,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 276 [2022-11-18 19:56:49,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:56:49,741 INFO L130 PetriNetUnfolder]: 4/433 cut-off events. [2022-11-18 19:56:49,741 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:56:49,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 433 events. 4/433 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1082 event pairs, 4 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 395. Up to 17 conditions per place. [2022-11-18 19:56:49,743 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 10 selfloop transitions, 1 changer transitions 0/264 dead transitions. [2022-11-18 19:56:49,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 264 transitions, 556 flow [2022-11-18 19:56:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:56:49,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:56:49,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2022-11-18 19:56:49,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9601449275362319 [2022-11-18 19:56:49,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2022-11-18 19:56:49,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2022-11-18 19:56:49,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:49,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2022-11-18 19:56:49,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states 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 19:56:49,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 19:56:49,756 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 19:56:49,756 INFO L175 Difference]: Start difference. First operand has 273 places, 268 transitions, 542 flow. Second operand 3 states and 795 transitions. [2022-11-18 19:56:49,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 264 transitions, 556 flow [2022-11-18 19:56:49,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 264 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:56:49,761 INFO L231 Difference]: Finished difference. Result has 269 places, 264 transitions, 532 flow [2022-11-18 19:56:49,762 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=269, PETRI_TRANSITIONS=264} [2022-11-18 19:56:49,764 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -10 predicate places. [2022-11-18 19:56:49,766 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 264 transitions, 532 flow [2022-11-18 19:56:49,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states 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 19:56:49,766 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:49,767 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 19:56:49,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:56:49,767 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:56:49,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash -2076172133, now seen corresponding path program 1 times [2022-11-18 19:56:49,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:49,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143411420] [2022-11-18 19:56:49,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:49,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:50,349 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 19:56:50,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:50,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143411420] [2022-11-18 19:56:50,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143411420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:50,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:50,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:56:50,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710286768] [2022-11-18 19:56:50,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:50,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:56:50,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:50,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:56:50,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:56:50,354 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 276 [2022-11-18 19:56:50,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 264 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 19:56:50,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:50,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 276 [2022-11-18 19:56:50,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:56:51,242 INFO L130 PetriNetUnfolder]: 925/2998 cut-off events. [2022-11-18 19:56:51,243 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:56:51,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4965 conditions, 2998 events. 925/2998 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 19040 event pairs, 925 based on Foata normal form. 0/2634 useless extension candidates. Maximal degree in co-relation 4890. Up to 1957 conditions per place. [2022-11-18 19:56:51,258 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 106 selfloop transitions, 5 changer transitions 0/263 dead transitions. [2022-11-18 19:56:51,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 263 transitions, 752 flow [2022-11-18 19:56:51,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:56:51,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:56:51,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1060 transitions. [2022-11-18 19:56:51,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6400966183574879 [2022-11-18 19:56:51,263 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1060 transitions. [2022-11-18 19:56:51,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1060 transitions. [2022-11-18 19:56:51,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:51,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1060 transitions. [2022-11-18 19:56:51,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.66666666666666) internal successors, (1060), 6 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:56:51,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:51,272 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:51,272 INFO L175 Difference]: Start difference. First operand has 269 places, 264 transitions, 532 flow. Second operand 6 states and 1060 transitions. [2022-11-18 19:56:51,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 263 transitions, 752 flow [2022-11-18 19:56:51,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 263 transitions, 751 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:56:51,279 INFO L231 Difference]: Finished difference. Result has 272 places, 263 transitions, 539 flow [2022-11-18 19:56:51,280 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=539, PETRI_PLACES=272, PETRI_TRANSITIONS=263} [2022-11-18 19:56:51,283 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -7 predicate places. [2022-11-18 19:56:51,284 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 263 transitions, 539 flow [2022-11-18 19:56:51,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 19:56:51,285 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:51,285 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 19:56:51,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:56:51,285 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:56:51,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:51,287 INFO L85 PathProgramCache]: Analyzing trace with hash -792736779, now seen corresponding path program 1 times [2022-11-18 19:56:51,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:51,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238148244] [2022-11-18 19:56:51,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:51,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:51,393 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 19:56:51,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:51,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238148244] [2022-11-18 19:56:51,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238148244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:51,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:51,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:56:51,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797070706] [2022-11-18 19:56:51,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:51,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:56:51,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:51,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:56:51,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:56:51,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 276 [2022-11-18 19:56:51,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 263 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states 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 19:56:51,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:51,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 276 [2022-11-18 19:56:51,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:56:51,495 INFO L130 PetriNetUnfolder]: 9/395 cut-off events. [2022-11-18 19:56:51,496 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:56:51,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 395 events. 9/395 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 781 event pairs, 9 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 379. Up to 35 conditions per place. [2022-11-18 19:56:51,498 INFO L137 encePairwiseOnDemand]: 273/276 looper letters, 16 selfloop transitions, 2 changer transitions 0/262 dead transitions. [2022-11-18 19:56:51,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 262 transitions, 573 flow [2022-11-18 19:56:51,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:56:51,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:56:51,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 790 transitions. [2022-11-18 19:56:51,501 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9541062801932367 [2022-11-18 19:56:51,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 790 transitions. [2022-11-18 19:56:51,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 790 transitions. [2022-11-18 19:56:51,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:51,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 790 transitions. [2022-11-18 19:56:51,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 0 states have call successors, (0), 0 states 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 19:56:51,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 19:56:51,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 19:56:51,509 INFO L175 Difference]: Start difference. First operand has 272 places, 263 transitions, 539 flow. Second operand 3 states and 790 transitions. [2022-11-18 19:56:51,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 262 transitions, 573 flow [2022-11-18 19:56:51,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 262 transitions, 563 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:56:51,516 INFO L231 Difference]: Finished difference. Result has 268 places, 262 transitions, 531 flow [2022-11-18 19:56:51,516 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=268, PETRI_TRANSITIONS=262} [2022-11-18 19:56:51,519 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -11 predicate places. [2022-11-18 19:56:51,520 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 262 transitions, 531 flow [2022-11-18 19:56:51,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states 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 19:56:51,520 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:51,521 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 19:56:51,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:56:51,521 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:56:51,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:51,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1808203472, now seen corresponding path program 1 times [2022-11-18 19:56:51,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:51,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355899755] [2022-11-18 19:56:51,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:51,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:51,623 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 19:56:51,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:51,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355899755] [2022-11-18 19:56:51,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355899755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:51,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:51,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:56:51,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820494990] [2022-11-18 19:56:51,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:51,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:56:51,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:51,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:56:51,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:56:51,632 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 276 [2022-11-18 19:56:51,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 262 transitions, 531 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states 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 19:56:51,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:51,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 276 [2022-11-18 19:56:51,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:56:51,712 INFO L130 PetriNetUnfolder]: 4/351 cut-off events. [2022-11-18 19:56:51,712 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:56:51,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 351 events. 4/351 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 529 event pairs, 4 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 316. Up to 17 conditions per place. [2022-11-18 19:56:51,714 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 10 selfloop transitions, 1 changer transitions 0/258 dead transitions. [2022-11-18 19:56:51,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 258 transitions, 545 flow [2022-11-18 19:56:51,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:56:51,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:56:51,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2022-11-18 19:56:51,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9601449275362319 [2022-11-18 19:56:51,815 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2022-11-18 19:56:51,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2022-11-18 19:56:51,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:51,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2022-11-18 19:56:51,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states 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 19:56:51,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 19:56:51,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 19:56:51,820 INFO L175 Difference]: Start difference. First operand has 268 places, 262 transitions, 531 flow. Second operand 3 states and 795 transitions. [2022-11-18 19:56:51,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 258 transitions, 545 flow [2022-11-18 19:56:51,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 258 transitions, 541 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:56:51,836 INFO L231 Difference]: Finished difference. Result has 264 places, 258 transitions, 521 flow [2022-11-18 19:56:51,836 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=521, PETRI_PLACES=264, PETRI_TRANSITIONS=258} [2022-11-18 19:56:51,838 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -15 predicate places. [2022-11-18 19:56:51,838 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 258 transitions, 521 flow [2022-11-18 19:56:51,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states 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 19:56:51,839 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:51,839 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] [2022-11-18 19:56:51,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:56:51,839 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:56:51,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:51,840 INFO L85 PathProgramCache]: Analyzing trace with hash -367297598, now seen corresponding path program 1 times [2022-11-18 19:56:51,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:51,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413528889] [2022-11-18 19:56:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:51,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:52,501 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 19:56:52,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:52,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413528889] [2022-11-18 19:56:52,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413528889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:52,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:52,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:56:52,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552627029] [2022-11-18 19:56:52,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:52,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:56:52,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:52,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:56:52,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:56:52,505 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 276 [2022-11-18 19:56:52,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 258 transitions, 521 flow. Second operand has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states 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 19:56:52,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:52,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 276 [2022-11-18 19:56:52,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:56:53,194 INFO L130 PetriNetUnfolder]: 925/2909 cut-off events. [2022-11-18 19:56:53,194 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:56:53,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4876 conditions, 2909 events. 925/2909 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 18239 event pairs, 925 based on Foata normal form. 0/2579 useless extension candidates. Maximal degree in co-relation 4802. Up to 1956 conditions per place. [2022-11-18 19:56:53,207 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 105 selfloop transitions, 5 changer transitions 0/257 dead transitions. [2022-11-18 19:56:53,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 257 transitions, 739 flow [2022-11-18 19:56:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:56:53,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:56:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2022-11-18 19:56:53,211 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6394927536231884 [2022-11-18 19:56:53,211 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1059 transitions. [2022-11-18 19:56:53,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1059 transitions. [2022-11-18 19:56:53,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:53,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1059 transitions. [2022-11-18 19:56:53,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.5) internal successors, (1059), 6 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states 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 19:56:53,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:53,223 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:53,223 INFO L175 Difference]: Start difference. First operand has 264 places, 258 transitions, 521 flow. Second operand 6 states and 1059 transitions. [2022-11-18 19:56:53,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 257 transitions, 739 flow [2022-11-18 19:56:53,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 257 transitions, 738 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:56:53,228 INFO L231 Difference]: Finished difference. Result has 267 places, 257 transitions, 528 flow [2022-11-18 19:56:53,229 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=528, PETRI_PLACES=267, PETRI_TRANSITIONS=257} [2022-11-18 19:56:53,232 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -12 predicate places. [2022-11-18 19:56:53,232 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 257 transitions, 528 flow [2022-11-18 19:56:53,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states 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 19:56:53,233 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:53,233 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] [2022-11-18 19:56:53,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:56:53,233 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:56:53,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:53,234 INFO L85 PathProgramCache]: Analyzing trace with hash 333101359, now seen corresponding path program 1 times [2022-11-18 19:56:53,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:53,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183909474] [2022-11-18 19:56:53,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:53,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:54,031 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 19:56:54,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:54,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183909474] [2022-11-18 19:56:54,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183909474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:54,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:54,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:56:54,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845505035] [2022-11-18 19:56:54,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:54,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:56:54,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:54,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:56:54,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:56:54,035 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-18 19:56:54,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 257 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 19:56:54,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:54,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-18 19:56:54,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:56:55,453 INFO L130 PetriNetUnfolder]: 1392/4446 cut-off events. [2022-11-18 19:56:55,453 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:56:55,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7395 conditions, 4446 events. 1392/4446 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32542 event pairs, 181 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 7321. Up to 1396 conditions per place. [2022-11-18 19:56:55,475 INFO L137 encePairwiseOnDemand]: 257/276 looper letters, 210 selfloop transitions, 38 changer transitions 0/398 dead transitions. [2022-11-18 19:56:55,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 398 transitions, 1306 flow [2022-11-18 19:56:55,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:56:55,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:56:55,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1216 transitions. [2022-11-18 19:56:55,479 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7342995169082126 [2022-11-18 19:56:55,479 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1216 transitions. [2022-11-18 19:56:55,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1216 transitions. [2022-11-18 19:56:55,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:55,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1216 transitions. [2022-11-18 19:56:55,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 202.66666666666666) internal successors, (1216), 6 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states 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 19:56:55,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:55,486 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:55,487 INFO L175 Difference]: Start difference. First operand has 267 places, 257 transitions, 528 flow. Second operand 6 states and 1216 transitions. [2022-11-18 19:56:55,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 398 transitions, 1306 flow [2022-11-18 19:56:55,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 398 transitions, 1296 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:56:55,494 INFO L231 Difference]: Finished difference. Result has 271 places, 293 transitions, 776 flow [2022-11-18 19:56:55,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=776, PETRI_PLACES=271, PETRI_TRANSITIONS=293} [2022-11-18 19:56:55,495 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -8 predicate places. [2022-11-18 19:56:55,495 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 293 transitions, 776 flow [2022-11-18 19:56:55,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 19:56:55,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:55,496 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] [2022-11-18 19:56:55,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:56:55,497 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:56:55,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:55,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2113254963, now seen corresponding path program 1 times [2022-11-18 19:56:55,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:55,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803010454] [2022-11-18 19:56:55,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:55,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:56,248 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 19:56:56,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:56,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803010454] [2022-11-18 19:56:56,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803010454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:56,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:56,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:56:56,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071121623] [2022-11-18 19:56:56,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:56,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:56:56,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:56,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:56:56,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:56:56,255 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 276 [2022-11-18 19:56:56,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 293 transitions, 776 flow. Second operand has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states 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 19:56:56,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:56,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 276 [2022-11-18 19:56:56,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:56:57,659 INFO L130 PetriNetUnfolder]: 1425/4488 cut-off events. [2022-11-18 19:56:57,660 INFO L131 PetriNetUnfolder]: For 1087/1090 co-relation queries the response was YES. [2022-11-18 19:56:57,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8610 conditions, 4488 events. 1425/4488 cut-off events. For 1087/1090 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 32426 event pairs, 1015 based on Foata normal form. 0/4061 useless extension candidates. Maximal degree in co-relation 8534. Up to 2720 conditions per place. [2022-11-18 19:56:57,692 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 227 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2022-11-18 19:56:57,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 384 transitions, 1462 flow [2022-11-18 19:56:57,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:56:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:56:57,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1174 transitions. [2022-11-18 19:56:57,696 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7089371980676329 [2022-11-18 19:56:57,696 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1174 transitions. [2022-11-18 19:56:57,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1174 transitions. [2022-11-18 19:56:57,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:57,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1174 transitions. [2022-11-18 19:56:57,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states 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 19:56:57,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:57,703 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:56:57,703 INFO L175 Difference]: Start difference. First operand has 271 places, 293 transitions, 776 flow. Second operand 6 states and 1174 transitions. [2022-11-18 19:56:57,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 384 transitions, 1462 flow [2022-11-18 19:56:57,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 384 transitions, 1462 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:56:57,713 INFO L231 Difference]: Finished difference. Result has 275 places, 292 transitions, 784 flow [2022-11-18 19:56:57,714 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=784, PETRI_PLACES=275, PETRI_TRANSITIONS=292} [2022-11-18 19:56:57,714 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -4 predicate places. [2022-11-18 19:56:57,714 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 292 transitions, 784 flow [2022-11-18 19:56:57,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states 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 19:56:57,716 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:57,716 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] [2022-11-18 19:56:57,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:56:57,716 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:56:57,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:57,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1391679481, now seen corresponding path program 1 times [2022-11-18 19:56:57,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:57,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644408726] [2022-11-18 19:56:57,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:57,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:58,407 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 19:56:58,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:58,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644408726] [2022-11-18 19:56:58,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644408726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:58,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:58,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:56:58,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546960071] [2022-11-18 19:56:58,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:58,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:56:58,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:58,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:56:58,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:56:58,410 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 276 [2022-11-18 19:56:58,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 292 transitions, 784 flow. Second operand has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states 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 19:56:58,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:58,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 276 [2022-11-18 19:56:58,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:00,093 INFO L130 PetriNetUnfolder]: 1814/5618 cut-off events. [2022-11-18 19:57:00,093 INFO L131 PetriNetUnfolder]: For 1369/1375 co-relation queries the response was YES. [2022-11-18 19:57:00,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10841 conditions, 5618 events. 1814/5618 cut-off events. For 1369/1375 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 43378 event pairs, 427 based on Foata normal form. 0/5184 useless extension candidates. Maximal degree in co-relation 10761. Up to 2162 conditions per place. [2022-11-18 19:57:00,125 INFO L137 encePairwiseOnDemand]: 255/276 looper letters, 253 selfloop transitions, 71 changer transitions 0/471 dead transitions. [2022-11-18 19:57:00,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 471 transitions, 2046 flow [2022-11-18 19:57:00,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:57:00,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:57:00,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1209 transitions. [2022-11-18 19:57:00,129 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.730072463768116 [2022-11-18 19:57:00,129 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1209 transitions. [2022-11-18 19:57:00,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1209 transitions. [2022-11-18 19:57:00,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:00,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1209 transitions. [2022-11-18 19:57:00,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.5) internal successors, (1209), 6 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states 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 19:57:00,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:57:00,137 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:57:00,137 INFO L175 Difference]: Start difference. First operand has 275 places, 292 transitions, 784 flow. Second operand 6 states and 1209 transitions. [2022-11-18 19:57:00,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 471 transitions, 2046 flow [2022-11-18 19:57:00,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 471 transitions, 1996 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:57:00,148 INFO L231 Difference]: Finished difference. Result has 280 places, 361 transitions, 1432 flow [2022-11-18 19:57:00,149 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1432, PETRI_PLACES=280, PETRI_TRANSITIONS=361} [2022-11-18 19:57:00,150 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 1 predicate places. [2022-11-18 19:57:00,150 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 361 transitions, 1432 flow [2022-11-18 19:57:00,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states 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 19:57:00,150 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:00,151 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] [2022-11-18 19:57:00,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:57:00,151 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:00,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:00,152 INFO L85 PathProgramCache]: Analyzing trace with hash -804476488, now seen corresponding path program 1 times [2022-11-18 19:57:00,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:00,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997210276] [2022-11-18 19:57:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:00,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:00,847 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 19:57:00,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:00,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997210276] [2022-11-18 19:57:00,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997210276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:00,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:00,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:57:00,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148071458] [2022-11-18 19:57:00,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:00,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:57:00,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:00,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:57:00,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:57:00,851 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-18 19:57:00,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 361 transitions, 1432 flow. Second operand has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:00,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:00,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-18 19:57:00,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:02,688 INFO L130 PetriNetUnfolder]: 1933/6117 cut-off events. [2022-11-18 19:57:02,688 INFO L131 PetriNetUnfolder]: For 3586/3620 co-relation queries the response was YES. [2022-11-18 19:57:02,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14041 conditions, 6117 events. 1933/6117 cut-off events. For 3586/3620 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 47986 event pairs, 1016 based on Foata normal form. 0/5711 useless extension candidates. Maximal degree in co-relation 13960. Up to 3830 conditions per place. [2022-11-18 19:57:02,741 INFO L137 encePairwiseOnDemand]: 253/276 looper letters, 240 selfloop transitions, 89 changer transitions 0/480 dead transitions. [2022-11-18 19:57:02,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 480 transitions, 2610 flow [2022-11-18 19:57:02,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:57:02,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:57:02,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1173 transitions. [2022-11-18 19:57:02,745 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2022-11-18 19:57:02,746 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1173 transitions. [2022-11-18 19:57:02,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1173 transitions. [2022-11-18 19:57:02,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:02,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1173 transitions. [2022-11-18 19:57:02,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.5) internal successors, (1173), 6 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states 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 19:57:02,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:57:02,755 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:57:02,756 INFO L175 Difference]: Start difference. First operand has 280 places, 361 transitions, 1432 flow. Second operand 6 states and 1173 transitions. [2022-11-18 19:57:02,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 480 transitions, 2610 flow [2022-11-18 19:57:02,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 480 transitions, 2610 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:57:02,780 INFO L231 Difference]: Finished difference. Result has 290 places, 445 transitions, 2234 flow [2022-11-18 19:57:02,781 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1432, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2234, PETRI_PLACES=290, PETRI_TRANSITIONS=445} [2022-11-18 19:57:02,782 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 11 predicate places. [2022-11-18 19:57:02,782 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 445 transitions, 2234 flow [2022-11-18 19:57:02,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:02,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:02,784 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] [2022-11-18 19:57:02,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:57:02,784 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:02,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:02,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1371611843, now seen corresponding path program 1 times [2022-11-18 19:57:02,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:02,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981912128] [2022-11-18 19:57:02,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:02,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:03,050 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 19:57:03,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:03,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981912128] [2022-11-18 19:57:03,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981912128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:03,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:03,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:57:03,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663105725] [2022-11-18 19:57:03,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:03,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:03,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:03,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:03,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:03,054 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 276 [2022-11-18 19:57:03,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 445 transitions, 2234 flow. Second operand has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 19:57:03,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:03,056 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 276 [2022-11-18 19:57:03,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:03,543 INFO L130 PetriNetUnfolder]: 286/1908 cut-off events. [2022-11-18 19:57:03,543 INFO L131 PetriNetUnfolder]: For 1114/1188 co-relation queries the response was YES. [2022-11-18 19:57:03,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3922 conditions, 1908 events. 286/1908 cut-off events. For 1114/1188 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13002 event pairs, 25 based on Foata normal form. 4/1826 useless extension candidates. Maximal degree in co-relation 3840. Up to 272 conditions per place. [2022-11-18 19:57:03,559 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 15 selfloop transitions, 6 changer transitions 0/385 dead transitions. [2022-11-18 19:57:03,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 385 transitions, 1712 flow [2022-11-18 19:57:03,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:57:03,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:57:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 806 transitions. [2022-11-18 19:57:03,562 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9734299516908212 [2022-11-18 19:57:03,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 806 transitions. [2022-11-18 19:57:03,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 806 transitions. [2022-11-18 19:57:03,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:03,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 806 transitions. [2022-11-18 19:57:03,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.6666666666667) internal successors, (806), 3 states have internal predecessors, (806), 0 states have call successors, (0), 0 states 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 19:57:03,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 19:57:03,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 19:57:03,568 INFO L175 Difference]: Start difference. First operand has 290 places, 445 transitions, 2234 flow. Second operand 3 states and 806 transitions. [2022-11-18 19:57:03,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 385 transitions, 1712 flow [2022-11-18 19:57:03,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 385 transitions, 1624 flow, removed 44 selfloop flow, removed 0 redundant places. [2022-11-18 19:57:03,588 INFO L231 Difference]: Finished difference. Result has 293 places, 383 transitions, 1604 flow [2022-11-18 19:57:03,588 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1570, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1604, PETRI_PLACES=293, PETRI_TRANSITIONS=383} [2022-11-18 19:57:03,589 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 14 predicate places. [2022-11-18 19:57:03,590 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 383 transitions, 1604 flow [2022-11-18 19:57:03,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 19:57:03,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:03,591 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] [2022-11-18 19:57:03,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:57:03,591 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:03,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:03,592 INFO L85 PathProgramCache]: Analyzing trace with hash 915683656, now seen corresponding path program 1 times [2022-11-18 19:57:03,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:03,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136489464] [2022-11-18 19:57:03,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:03,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:04,366 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 19:57:04,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:04,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136489464] [2022-11-18 19:57:04,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136489464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:04,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:04,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:57:04,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884224656] [2022-11-18 19:57:04,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:04,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:57:04,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:04,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:57:04,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:57:04,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-18 19:57:04,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 383 transitions, 1604 flow. Second operand has 6 states, 6 states have (on average 171.16666666666666) internal successors, (1027), 6 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states 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 19:57:04,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:04,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-18 19:57:04,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:06,088 INFO L130 PetriNetUnfolder]: 1230/4289 cut-off events. [2022-11-18 19:57:06,088 INFO L131 PetriNetUnfolder]: For 3299/3328 co-relation queries the response was YES. [2022-11-18 19:57:06,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10856 conditions, 4289 events. 1230/4289 cut-off events. For 3299/3328 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33092 event pairs, 209 based on Foata normal form. 0/4115 useless extension candidates. Maximal degree in co-relation 10767. Up to 1159 conditions per place. [2022-11-18 19:57:06,183 INFO L137 encePairwiseOnDemand]: 257/276 looper letters, 376 selfloop transitions, 124 changer transitions 4/659 dead transitions. [2022-11-18 19:57:06,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 659 transitions, 4178 flow [2022-11-18 19:57:06,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:57:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:57:06,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1261 transitions. [2022-11-18 19:57:06,187 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7614734299516909 [2022-11-18 19:57:06,187 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1261 transitions. [2022-11-18 19:57:06,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1261 transitions. [2022-11-18 19:57:06,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:06,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1261 transitions. [2022-11-18 19:57:06,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.16666666666666) internal successors, (1261), 6 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states 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 19:57:06,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:57:06,195 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:57:06,195 INFO L175 Difference]: Start difference. First operand has 293 places, 383 transitions, 1604 flow. Second operand 6 states and 1261 transitions. [2022-11-18 19:57:06,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 659 transitions, 4178 flow [2022-11-18 19:57:06,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 659 transitions, 4172 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:57:06,225 INFO L231 Difference]: Finished difference. Result has 301 places, 485 transitions, 2980 flow [2022-11-18 19:57:06,226 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1596, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2980, PETRI_PLACES=301, PETRI_TRANSITIONS=485} [2022-11-18 19:57:06,227 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 22 predicate places. [2022-11-18 19:57:06,227 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 485 transitions, 2980 flow [2022-11-18 19:57:06,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.16666666666666) internal successors, (1027), 6 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states 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 19:57:06,228 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:06,228 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 19:57:06,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:57:06,229 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:06,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:06,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1967520859, now seen corresponding path program 1 times [2022-11-18 19:57:06,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:06,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56304464] [2022-11-18 19:57:06,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:06,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:06,862 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 19:57:06,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:06,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56304464] [2022-11-18 19:57:06,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56304464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:06,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:06,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:57:06,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181048268] [2022-11-18 19:57:06,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:06,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:57:06,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:06,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:57:06,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:57:06,865 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 276 [2022-11-18 19:57:06,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 485 transitions, 2980 flow. Second operand has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states 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 19:57:06,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:06,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 276 [2022-11-18 19:57:06,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:08,184 INFO L130 PetriNetUnfolder]: 1281/4354 cut-off events. [2022-11-18 19:57:08,184 INFO L131 PetriNetUnfolder]: For 6062/6103 co-relation queries the response was YES. [2022-11-18 19:57:08,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12632 conditions, 4354 events. 1281/4354 cut-off events. For 6062/6103 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33324 event pairs, 469 based on Foata normal form. 0/4226 useless extension candidates. Maximal degree in co-relation 12540. Up to 2346 conditions per place. [2022-11-18 19:57:08,220 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 410 selfloop transitions, 17 changer transitions 0/584 dead transitions. [2022-11-18 19:57:08,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 584 transitions, 4424 flow [2022-11-18 19:57:08,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:57:08,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:57:08,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1164 transitions. [2022-11-18 19:57:08,224 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7028985507246377 [2022-11-18 19:57:08,224 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1164 transitions. [2022-11-18 19:57:08,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1164 transitions. [2022-11-18 19:57:08,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:08,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1164 transitions. [2022-11-18 19:57:08,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states 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 19:57:08,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:57:08,232 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:57:08,232 INFO L175 Difference]: Start difference. First operand has 301 places, 485 transitions, 2980 flow. Second operand 6 states and 1164 transitions. [2022-11-18 19:57:08,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 584 transitions, 4424 flow [2022-11-18 19:57:08,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 584 transitions, 4406 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-18 19:57:08,274 INFO L231 Difference]: Finished difference. Result has 305 places, 484 transitions, 2994 flow [2022-11-18 19:57:08,275 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=2960, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2994, PETRI_PLACES=305, PETRI_TRANSITIONS=484} [2022-11-18 19:57:08,276 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 26 predicate places. [2022-11-18 19:57:08,276 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 484 transitions, 2994 flow [2022-11-18 19:57:08,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states 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 19:57:08,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:08,277 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] [2022-11-18 19:57:08,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:57:08,278 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:08,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:08,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1233179414, now seen corresponding path program 1 times [2022-11-18 19:57:08,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:08,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735268189] [2022-11-18 19:57:08,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:08,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:10,433 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 19:57:10,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:10,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735268189] [2022-11-18 19:57:10,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735268189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:10,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:10,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-18 19:57:10,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892154716] [2022-11-18 19:57:10,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:10,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 19:57:10,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:10,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 19:57:10,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:57:10,439 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 276 [2022-11-18 19:57:10,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 484 transitions, 2994 flow. Second operand has 21 states, 21 states have (on average 120.28571428571429) internal successors, (2526), 21 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states 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 19:57:10,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:10,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 276 [2022-11-18 19:57:10,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:13,581 INFO L130 PetriNetUnfolder]: 1855/5705 cut-off events. [2022-11-18 19:57:13,581 INFO L131 PetriNetUnfolder]: For 6899/6899 co-relation queries the response was YES. [2022-11-18 19:57:13,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16587 conditions, 5705 events. 1855/5705 cut-off events. For 6899/6899 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 44759 event pairs, 191 based on Foata normal form. 15/5580 useless extension candidates. Maximal degree in co-relation 16475. Up to 1996 conditions per place. [2022-11-18 19:57:13,619 INFO L137 encePairwiseOnDemand]: 244/276 looper letters, 549 selfloop transitions, 127 changer transitions 1/784 dead transitions. [2022-11-18 19:57:13,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 784 transitions, 6104 flow [2022-11-18 19:57:13,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-18 19:57:13,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-18 19:57:13,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4759 transitions. [2022-11-18 19:57:13,632 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4537566742944317 [2022-11-18 19:57:13,632 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 4759 transitions. [2022-11-18 19:57:13,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 4759 transitions. [2022-11-18 19:57:13,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:13,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 4759 transitions. [2022-11-18 19:57:13,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 125.23684210526316) internal successors, (4759), 38 states have internal predecessors, (4759), 0 states have call successors, (0), 0 states 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 19:57:13,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 19:57:13,661 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 19:57:13,661 INFO L175 Difference]: Start difference. First operand has 305 places, 484 transitions, 2994 flow. Second operand 38 states and 4759 transitions. [2022-11-18 19:57:13,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 784 transitions, 6104 flow [2022-11-18 19:57:13,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 784 transitions, 6044 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:57:13,707 INFO L231 Difference]: Finished difference. Result has 352 places, 543 transitions, 3808 flow [2022-11-18 19:57:13,708 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=2960, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=3808, PETRI_PLACES=352, PETRI_TRANSITIONS=543} [2022-11-18 19:57:13,709 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 73 predicate places. [2022-11-18 19:57:13,709 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 543 transitions, 3808 flow [2022-11-18 19:57:13,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 120.28571428571429) internal successors, (2526), 21 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states 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 19:57:13,710 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:13,711 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] [2022-11-18 19:57:13,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:57:13,711 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:13,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:13,711 INFO L85 PathProgramCache]: Analyzing trace with hash -905724054, now seen corresponding path program 1 times [2022-11-18 19:57:13,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:13,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823248437] [2022-11-18 19:57:13,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:13,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:15,845 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 19:57:15,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:15,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823248437] [2022-11-18 19:57:15,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823248437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:15,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:15,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:57:15,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861008310] [2022-11-18 19:57:15,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:15,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:57:15,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:15,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:57:15,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:57:15,850 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-18 19:57:15,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 543 transitions, 3808 flow. Second operand has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 19:57:15,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:15,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-18 19:57:15,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:20,073 INFO L130 PetriNetUnfolder]: 2214/6839 cut-off events. [2022-11-18 19:57:20,073 INFO L131 PetriNetUnfolder]: For 12908/12916 co-relation queries the response was YES. [2022-11-18 19:57:20,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22096 conditions, 6839 events. 2214/6839 cut-off events. For 12908/12916 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 56745 event pairs, 354 based on Foata normal form. 18/6702 useless extension candidates. Maximal degree in co-relation 21962. Up to 1702 conditions per place. [2022-11-18 19:57:20,120 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 710 selfloop transitions, 158 changer transitions 3/982 dead transitions. [2022-11-18 19:57:20,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 982 transitions, 8620 flow [2022-11-18 19:57:20,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 19:57:20,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 19:57:20,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3991 transitions. [2022-11-18 19:57:20,128 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4820048309178744 [2022-11-18 19:57:20,128 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3991 transitions. [2022-11-18 19:57:20,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3991 transitions. [2022-11-18 19:57:20,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:20,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3991 transitions. [2022-11-18 19:57:20,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 133.03333333333333) internal successors, (3991), 30 states have internal predecessors, (3991), 0 states have call successors, (0), 0 states 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 19:57:20,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 276.0) internal successors, (8556), 31 states have internal predecessors, (8556), 0 states have call successors, (0), 0 states 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 19:57:20,151 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 276.0) internal successors, (8556), 31 states have internal predecessors, (8556), 0 states have call successors, (0), 0 states 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 19:57:20,151 INFO L175 Difference]: Start difference. First operand has 352 places, 543 transitions, 3808 flow. Second operand 30 states and 3991 transitions. [2022-11-18 19:57:20,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 982 transitions, 8620 flow [2022-11-18 19:57:20,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 982 transitions, 8485 flow, removed 53 selfloop flow, removed 11 redundant places. [2022-11-18 19:57:20,261 INFO L231 Difference]: Finished difference. Result has 380 places, 633 transitions, 5281 flow [2022-11-18 19:57:20,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=3726, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=5281, PETRI_PLACES=380, PETRI_TRANSITIONS=633} [2022-11-18 19:57:20,262 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 101 predicate places. [2022-11-18 19:57:20,262 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 633 transitions, 5281 flow [2022-11-18 19:57:20,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 19:57:20,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:20,264 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] [2022-11-18 19:57:20,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:57:20,264 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:20,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:20,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2083265774, now seen corresponding path program 2 times [2022-11-18 19:57:20,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:20,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264096438] [2022-11-18 19:57:20,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:20,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:22,202 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 19:57:22,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:22,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264096438] [2022-11-18 19:57:22,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264096438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:22,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:22,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-18 19:57:22,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021250791] [2022-11-18 19:57:22,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:22,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 19:57:22,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:22,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 19:57:22,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:57:22,207 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-18 19:57:22,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 633 transitions, 5281 flow. Second operand has 21 states, 21 states have (on average 122.23809523809524) internal successors, (2567), 21 states have internal predecessors, (2567), 0 states have call successors, (0), 0 states 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 19:57:22,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:22,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-18 19:57:22,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:26,733 INFO L130 PetriNetUnfolder]: 2335/7104 cut-off events. [2022-11-18 19:57:26,733 INFO L131 PetriNetUnfolder]: For 17644/17654 co-relation queries the response was YES. [2022-11-18 19:57:26,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24670 conditions, 7104 events. 2335/7104 cut-off events. For 17644/17654 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 58675 event pairs, 211 based on Foata normal form. 25/6977 useless extension candidates. Maximal degree in co-relation 24523. Up to 1290 conditions per place. [2022-11-18 19:57:26,803 INFO L137 encePairwiseOnDemand]: 243/276 looper letters, 686 selfloop transitions, 202 changer transitions 4/1001 dead transitions. [2022-11-18 19:57:26,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 1001 transitions, 9440 flow [2022-11-18 19:57:26,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-18 19:57:26,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-18 19:57:26,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4897 transitions. [2022-11-18 19:57:26,814 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4669145690312738 [2022-11-18 19:57:26,814 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 4897 transitions. [2022-11-18 19:57:26,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 4897 transitions. [2022-11-18 19:57:26,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:26,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 4897 transitions. [2022-11-18 19:57:26,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 128.8684210526316) internal successors, (4897), 38 states have internal predecessors, (4897), 0 states have call successors, (0), 0 states 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 19:57:26,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 19:57:26,843 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 19:57:26,843 INFO L175 Difference]: Start difference. First operand has 380 places, 633 transitions, 5281 flow. Second operand 38 states and 4897 transitions. [2022-11-18 19:57:26,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 1001 transitions, 9440 flow [2022-11-18 19:57:27,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 1001 transitions, 9368 flow, removed 17 selfloop flow, removed 11 redundant places. [2022-11-18 19:57:27,035 INFO L231 Difference]: Finished difference. Result has 419 places, 696 transitions, 6464 flow [2022-11-18 19:57:27,036 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=5233, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=6464, PETRI_PLACES=419, PETRI_TRANSITIONS=696} [2022-11-18 19:57:27,037 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 140 predicate places. [2022-11-18 19:57:27,037 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 696 transitions, 6464 flow [2022-11-18 19:57:27,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 122.23809523809524) internal successors, (2567), 21 states have internal predecessors, (2567), 0 states have call successors, (0), 0 states 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 19:57:27,038 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:27,038 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] [2022-11-18 19:57:27,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 19:57:27,039 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:27,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:27,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1788509596, now seen corresponding path program 3 times [2022-11-18 19:57:27,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:27,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705859584] [2022-11-18 19:57:27,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:27,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:29,214 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 19:57:29,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:29,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705859584] [2022-11-18 19:57:29,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705859584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:29,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:29,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 19:57:29,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866664306] [2022-11-18 19:57:29,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:29,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 19:57:29,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:29,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 19:57:29,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:57:29,219 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-18 19:57:29,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 696 transitions, 6464 flow. Second operand has 22 states, 22 states have (on average 122.0) internal successors, (2684), 22 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states 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 19:57:29,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:29,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-18 19:57:29,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:34,897 INFO L130 PetriNetUnfolder]: 2817/8469 cut-off events. [2022-11-18 19:57:34,897 INFO L131 PetriNetUnfolder]: For 28047/28059 co-relation queries the response was YES. [2022-11-18 19:57:34,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32007 conditions, 8469 events. 2817/8469 cut-off events. For 28047/28059 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 73336 event pairs, 297 based on Foata normal form. 27/8334 useless extension candidates. Maximal degree in co-relation 31844. Up to 1418 conditions per place. [2022-11-18 19:57:34,967 INFO L137 encePairwiseOnDemand]: 239/276 looper letters, 860 selfloop transitions, 243 changer transitions 4/1216 dead transitions. [2022-11-18 19:57:34,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 1216 transitions, 12603 flow [2022-11-18 19:57:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-18 19:57:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-18 19:57:34,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 4865 transitions. [2022-11-18 19:57:34,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4764003133568351 [2022-11-18 19:57:34,978 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 4865 transitions. [2022-11-18 19:57:34,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 4865 transitions. [2022-11-18 19:57:34,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:34,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 4865 transitions. [2022-11-18 19:57:34,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 131.48648648648648) internal successors, (4865), 37 states have internal predecessors, (4865), 0 states have call successors, (0), 0 states 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 19:57:35,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 276.0) internal successors, (10488), 38 states have internal predecessors, (10488), 0 states have call successors, (0), 0 states 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 19:57:35,007 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 276.0) internal successors, (10488), 38 states have internal predecessors, (10488), 0 states have call successors, (0), 0 states 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 19:57:35,007 INFO L175 Difference]: Start difference. First operand has 419 places, 696 transitions, 6464 flow. Second operand 37 states and 4865 transitions. [2022-11-18 19:57:35,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 1216 transitions, 12603 flow [2022-11-18 19:57:35,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1216 transitions, 12368 flow, removed 14 selfloop flow, removed 23 redundant places. [2022-11-18 19:57:35,291 INFO L231 Difference]: Finished difference. Result has 443 places, 785 transitions, 8437 flow [2022-11-18 19:57:35,292 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=6294, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=8437, PETRI_PLACES=443, PETRI_TRANSITIONS=785} [2022-11-18 19:57:35,293 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 164 predicate places. [2022-11-18 19:57:35,293 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 785 transitions, 8437 flow [2022-11-18 19:57:35,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.0) internal successors, (2684), 22 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states 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 19:57:35,294 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:35,294 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] [2022-11-18 19:57:35,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 19:57:35,294 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:35,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:35,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1259388884, now seen corresponding path program 4 times [2022-11-18 19:57:35,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:35,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560741305] [2022-11-18 19:57:35,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:35,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:37,138 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 19:57:37,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:37,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560741305] [2022-11-18 19:57:37,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560741305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:37,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:37,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:57:37,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514954556] [2022-11-18 19:57:37,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:37,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:57:37,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:37,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:57:37,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:57:37,144 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-18 19:57:37,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 785 transitions, 8437 flow. Second operand has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 19:57:37,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:37,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-18 19:57:37,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:42,932 INFO L130 PetriNetUnfolder]: 3299/9913 cut-off events. [2022-11-18 19:57:42,932 INFO L131 PetriNetUnfolder]: For 43269/43283 co-relation queries the response was YES. [2022-11-18 19:57:43,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39787 conditions, 9913 events. 3299/9913 cut-off events. For 43269/43283 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 89065 event pairs, 428 based on Foata normal form. 29/9759 useless extension candidates. Maximal degree in co-relation 39611. Up to 1838 conditions per place. [2022-11-18 19:57:43,086 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 888 selfloop transitions, 283 changer transitions 3/1285 dead transitions. [2022-11-18 19:57:43,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 1285 transitions, 15233 flow [2022-11-18 19:57:43,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 19:57:43,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-18 19:57:43,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 4504 transitions. [2022-11-18 19:57:43,093 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4799658994032396 [2022-11-18 19:57:43,093 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 4504 transitions. [2022-11-18 19:57:43,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 4504 transitions. [2022-11-18 19:57:43,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:43,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 4504 transitions. [2022-11-18 19:57:43,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 132.47058823529412) internal successors, (4504), 34 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states 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 19:57:43,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 276.0) internal successors, (9660), 35 states have internal predecessors, (9660), 0 states have call successors, (0), 0 states 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 19:57:43,114 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 276.0) internal successors, (9660), 35 states have internal predecessors, (9660), 0 states have call successors, (0), 0 states 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 19:57:43,115 INFO L175 Difference]: Start difference. First operand has 443 places, 785 transitions, 8437 flow. Second operand 34 states and 4504 transitions. [2022-11-18 19:57:43,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 1285 transitions, 15233 flow [2022-11-18 19:57:43,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 1285 transitions, 15136 flow, removed 19 selfloop flow, removed 16 redundant places. [2022-11-18 19:57:43,818 INFO L231 Difference]: Finished difference. Result has 473 places, 884 transitions, 11108 flow [2022-11-18 19:57:43,819 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=8362, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=785, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=11108, PETRI_PLACES=473, PETRI_TRANSITIONS=884} [2022-11-18 19:57:43,819 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 194 predicate places. [2022-11-18 19:57:43,820 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 884 transitions, 11108 flow [2022-11-18 19:57:43,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 19:57:43,820 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:43,820 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] [2022-11-18 19:57:43,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 19:57:43,820 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:43,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:43,821 INFO L85 PathProgramCache]: Analyzing trace with hash -543172394, now seen corresponding path program 5 times [2022-11-18 19:57:43,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:43,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206835331] [2022-11-18 19:57:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:43,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:45,551 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 19:57:45,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:45,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206835331] [2022-11-18 19:57:45,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206835331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:45,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:45,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:57:45,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940842242] [2022-11-18 19:57:45,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:45,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:57:45,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:45,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:57:45,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:57:45,555 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-18 19:57:45,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 884 transitions, 11108 flow. Second operand has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 19:57:45,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:45,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-18 19:57:45,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:51,848 INFO L130 PetriNetUnfolder]: 3728/11201 cut-off events. [2022-11-18 19:57:51,848 INFO L131 PetriNetUnfolder]: For 63519/63535 co-relation queries the response was YES. [2022-11-18 19:57:52,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47621 conditions, 11201 events. 3728/11201 cut-off events. For 63519/63535 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 104089 event pairs, 471 based on Foata normal form. 31/11036 useless extension candidates. Maximal degree in co-relation 47428. Up to 2268 conditions per place. [2022-11-18 19:57:52,040 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 900 selfloop transitions, 335 changer transitions 3/1349 dead transitions. [2022-11-18 19:57:52,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 1349 transitions, 17814 flow [2022-11-18 19:57:52,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-18 19:57:52,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-11-18 19:57:52,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 4376 transitions. [2022-11-18 19:57:52,047 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48045674132630656 [2022-11-18 19:57:52,047 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 4376 transitions. [2022-11-18 19:57:52,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 4376 transitions. [2022-11-18 19:57:52,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:52,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 4376 transitions. [2022-11-18 19:57:52,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 132.6060606060606) internal successors, (4376), 33 states have internal predecessors, (4376), 0 states have call successors, (0), 0 states 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 19:57:52,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 276.0) internal successors, (9384), 34 states have internal predecessors, (9384), 0 states have call successors, (0), 0 states 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 19:57:52,067 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 276.0) internal successors, (9384), 34 states have internal predecessors, (9384), 0 states have call successors, (0), 0 states 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 19:57:52,067 INFO L175 Difference]: Start difference. First operand has 473 places, 884 transitions, 11108 flow. Second operand 33 states and 4376 transitions. [2022-11-18 19:57:52,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 1349 transitions, 17814 flow [2022-11-18 19:57:52,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 1349 transitions, 17660 flow, removed 55 selfloop flow, removed 14 redundant places. [2022-11-18 19:57:52,817 INFO L231 Difference]: Finished difference. Result has 502 places, 960 transitions, 13801 flow [2022-11-18 19:57:52,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=10962, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=884, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=13801, PETRI_PLACES=502, PETRI_TRANSITIONS=960} [2022-11-18 19:57:52,818 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 223 predicate places. [2022-11-18 19:57:52,819 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 960 transitions, 13801 flow [2022-11-18 19:57:52,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 19:57:52,820 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:52,820 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] [2022-11-18 19:57:52,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 19:57:52,820 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:52,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash -934467488, now seen corresponding path program 1 times [2022-11-18 19:57:52,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:52,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358922629] [2022-11-18 19:57:52,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:52,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:53,263 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 19:57:53,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:53,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358922629] [2022-11-18 19:57:53,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358922629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:53,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:53,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:57:53,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117249412] [2022-11-18 19:57:53,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:53,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:57:53,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:53,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:57:53,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:57:53,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-18 19:57:53,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 960 transitions, 13801 flow. Second operand has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states 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 19:57:53,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:53,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-18 19:57:53,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:57,377 INFO L130 PetriNetUnfolder]: 3032/10024 cut-off events. [2022-11-18 19:57:57,377 INFO L131 PetriNetUnfolder]: For 71594/71945 co-relation queries the response was YES. [2022-11-18 19:57:57,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44077 conditions, 10024 events. 3032/10024 cut-off events. For 71594/71945 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 95100 event pairs, 1031 based on Foata normal form. 126/9994 useless extension candidates. Maximal degree in co-relation 43889. Up to 5812 conditions per place. [2022-11-18 19:57:57,500 INFO L137 encePairwiseOnDemand]: 253/276 looper letters, 627 selfloop transitions, 97 changer transitions 106/1094 dead transitions. [2022-11-18 19:57:57,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 1094 transitions, 16629 flow [2022-11-18 19:57:57,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:57:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:57:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1171 transitions. [2022-11-18 19:57:57,502 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7071256038647343 [2022-11-18 19:57:57,502 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1171 transitions. [2022-11-18 19:57:57,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1171 transitions. [2022-11-18 19:57:57,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:57,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1171 transitions. [2022-11-18 19:57:57,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.16666666666666) internal successors, (1171), 6 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states 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 19:57:57,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:57:57,507 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 19:57:57,508 INFO L175 Difference]: Start difference. First operand has 502 places, 960 transitions, 13801 flow. Second operand 6 states and 1171 transitions. [2022-11-18 19:57:57,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 1094 transitions, 16629 flow [2022-11-18 19:57:58,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 1094 transitions, 16488 flow, removed 45 selfloop flow, removed 15 redundant places. [2022-11-18 19:57:58,331 INFO L231 Difference]: Finished difference. Result has 497 places, 955 transitions, 13349 flow [2022-11-18 19:57:58,332 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=13660, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13349, PETRI_PLACES=497, PETRI_TRANSITIONS=955} [2022-11-18 19:57:58,332 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 218 predicate places. [2022-11-18 19:57:58,333 INFO L495 AbstractCegarLoop]: Abstraction has has 497 places, 955 transitions, 13349 flow [2022-11-18 19:57:58,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states 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 19:57:58,333 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:58,333 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] [2022-11-18 19:57:58,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 19:57:58,333 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:57:58,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:58,334 INFO L85 PathProgramCache]: Analyzing trace with hash 428030399, now seen corresponding path program 1 times [2022-11-18 19:57:58,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:58,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051995463] [2022-11-18 19:57:58,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:58,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:59,989 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 19:57:59,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:59,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051995463] [2022-11-18 19:57:59,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051995463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:59,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:59,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 19:57:59,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539886040] [2022-11-18 19:57:59,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:59,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 19:57:59,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:59,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 19:57:59,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:57:59,994 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-18 19:57:59,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 955 transitions, 13349 flow. Second operand has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 19:57:59,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:59,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-18 19:57:59,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:07,280 INFO L130 PetriNetUnfolder]: 3688/10885 cut-off events. [2022-11-18 19:58:07,281 INFO L131 PetriNetUnfolder]: For 83350/83355 co-relation queries the response was YES. [2022-11-18 19:58:07,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51176 conditions, 10885 events. 3688/10885 cut-off events. For 83350/83355 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 98705 event pairs, 469 based on Foata normal form. 10/10797 useless extension candidates. Maximal degree in co-relation 50970. Up to 1999 conditions per place. [2022-11-18 19:58:07,421 INFO L137 encePairwiseOnDemand]: 243/276 looper letters, 874 selfloop transitions, 272 changer transitions 31/1286 dead transitions. [2022-11-18 19:58:07,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1286 transitions, 18372 flow [2022-11-18 19:58:07,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-18 19:58:07,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-18 19:58:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4879 transitions. [2022-11-18 19:58:07,430 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46519832189168575 [2022-11-18 19:58:07,430 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 4879 transitions. [2022-11-18 19:58:07,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 4879 transitions. [2022-11-18 19:58:07,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:07,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 4879 transitions. [2022-11-18 19:58:07,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 128.39473684210526) internal successors, (4879), 38 states have internal predecessors, (4879), 0 states have call successors, (0), 0 states 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 19:58:07,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 19:58:07,456 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 19:58:07,456 INFO L175 Difference]: Start difference. First operand has 497 places, 955 transitions, 13349 flow. Second operand 38 states and 4879 transitions. [2022-11-18 19:58:07,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1286 transitions, 18372 flow [2022-11-18 19:58:08,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1286 transitions, 17844 flow, removed 196 selfloop flow, removed 11 redundant places. [2022-11-18 19:58:08,349 INFO L231 Difference]: Finished difference. Result has 502 places, 965 transitions, 13874 flow [2022-11-18 19:58:08,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=12975, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=262, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=13874, PETRI_PLACES=502, PETRI_TRANSITIONS=965} [2022-11-18 19:58:08,350 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 223 predicate places. [2022-11-18 19:58:08,350 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 965 transitions, 13874 flow [2022-11-18 19:58:08,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 19:58:08,351 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:08,351 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] [2022-11-18 19:58:08,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 19:58:08,352 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:58:08,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:08,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1549432587, now seen corresponding path program 2 times [2022-11-18 19:58:08,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:08,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574599366] [2022-11-18 19:58:08,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:08,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:09,992 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 19:58:09,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:09,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574599366] [2022-11-18 19:58:09,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574599366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:09,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:09,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:58:09,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678132529] [2022-11-18 19:58:09,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:09,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:58:09,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:09,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:58:09,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:58:09,997 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-18 19:58:09,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 965 transitions, 13874 flow. Second operand has 20 states, 20 states have (on average 123.7) internal successors, (2474), 20 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states 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 19:58:09,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:09,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-18 19:58:09,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:16,504 INFO L130 PetriNetUnfolder]: 3669/10783 cut-off events. [2022-11-18 19:58:16,504 INFO L131 PetriNetUnfolder]: For 91825/91830 co-relation queries the response was YES. [2022-11-18 19:58:16,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52251 conditions, 10783 events. 3669/10783 cut-off events. For 91825/91830 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 97363 event pairs, 548 based on Foata normal form. 10/10689 useless extension candidates. Maximal degree in co-relation 52045. Up to 2171 conditions per place. [2022-11-18 19:58:16,631 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 919 selfloop transitions, 267 changer transitions 29/1326 dead transitions. [2022-11-18 19:58:16,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1326 transitions, 19415 flow [2022-11-18 19:58:16,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 19:58:16,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-18 19:58:16,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 4084 transitions. [2022-11-18 19:58:16,637 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47732585320243104 [2022-11-18 19:58:16,638 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 4084 transitions. [2022-11-18 19:58:16,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 4084 transitions. [2022-11-18 19:58:16,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:16,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 4084 transitions. [2022-11-18 19:58:16,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 131.74193548387098) internal successors, (4084), 31 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states 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 19:58:16,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 276.0) internal successors, (8832), 32 states have internal predecessors, (8832), 0 states have call successors, (0), 0 states 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 19:58:16,653 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 276.0) internal successors, (8832), 32 states have internal predecessors, (8832), 0 states have call successors, (0), 0 states 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 19:58:16,653 INFO L175 Difference]: Start difference. First operand has 502 places, 965 transitions, 13874 flow. Second operand 31 states and 4084 transitions. [2022-11-18 19:58:16,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1326 transitions, 19415 flow [2022-11-18 19:58:17,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1326 transitions, 18883 flow, removed 16 selfloop flow, removed 33 redundant places. [2022-11-18 19:58:17,495 INFO L231 Difference]: Finished difference. Result has 502 places, 974 transitions, 14447 flow [2022-11-18 19:58:17,495 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=13378, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=698, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=14447, PETRI_PLACES=502, PETRI_TRANSITIONS=974} [2022-11-18 19:58:17,496 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 223 predicate places. [2022-11-18 19:58:17,496 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 974 transitions, 14447 flow [2022-11-18 19:58:17,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.7) internal successors, (2474), 20 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states 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 19:58:17,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:17,496 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] [2022-11-18 19:58:17,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 19:58:17,497 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:58:17,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:17,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1611330081, now seen corresponding path program 3 times [2022-11-18 19:58:17,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:17,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281057753] [2022-11-18 19:58:17,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:17,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:19,301 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 19:58:19,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:19,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281057753] [2022-11-18 19:58:19,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281057753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:19,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:19,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 19:58:19,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952316211] [2022-11-18 19:58:19,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:19,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 19:58:19,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:19,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 19:58:19,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:58:19,306 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-18 19:58:19,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 974 transitions, 14447 flow. Second operand has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 19:58:19,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:19,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-18 19:58:19,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:26,221 INFO L130 PetriNetUnfolder]: 3731/10996 cut-off events. [2022-11-18 19:58:26,221 INFO L131 PetriNetUnfolder]: For 101719/101724 co-relation queries the response was YES. [2022-11-18 19:58:26,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53592 conditions, 10996 events. 3731/10996 cut-off events. For 101719/101724 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 99867 event pairs, 474 based on Foata normal form. 10/10907 useless extension candidates. Maximal degree in co-relation 53381. Up to 1999 conditions per place. [2022-11-18 19:58:26,345 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 883 selfloop transitions, 283 changer transitions 31/1306 dead transitions. [2022-11-18 19:58:26,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 1306 transitions, 19487 flow [2022-11-18 19:58:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-18 19:58:26,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-18 19:58:26,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 4638 transitions. [2022-11-18 19:58:26,351 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4667874396135266 [2022-11-18 19:58:26,351 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 4638 transitions. [2022-11-18 19:58:26,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 4638 transitions. [2022-11-18 19:58:26,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:26,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 4638 transitions. [2022-11-18 19:58:26,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 128.83333333333334) internal successors, (4638), 36 states have internal predecessors, (4638), 0 states have call successors, (0), 0 states 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 19:58:26,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 276.0) internal successors, (10212), 37 states have internal predecessors, (10212), 0 states have call successors, (0), 0 states 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 19:58:26,370 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 276.0) internal successors, (10212), 37 states have internal predecessors, (10212), 0 states have call successors, (0), 0 states 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 19:58:26,371 INFO L175 Difference]: Start difference. First operand has 502 places, 974 transitions, 14447 flow. Second operand 36 states and 4638 transitions. [2022-11-18 19:58:26,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 1306 transitions, 19487 flow [2022-11-18 19:58:27,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 1306 transitions, 19050 flow, removed 15 selfloop flow, removed 27 redundant places. [2022-11-18 19:58:27,190 INFO L231 Difference]: Finished difference. Result has 514 places, 986 transitions, 15038 flow [2022-11-18 19:58:27,191 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=14022, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=974, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=271, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=15038, PETRI_PLACES=514, PETRI_TRANSITIONS=986} [2022-11-18 19:58:27,191 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 235 predicate places. [2022-11-18 19:58:27,192 INFO L495 AbstractCegarLoop]: Abstraction has has 514 places, 986 transitions, 15038 flow [2022-11-18 19:58:27,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 19:58:27,192 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:27,193 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] [2022-11-18 19:58:27,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 19:58:27,193 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:58:27,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:27,193 INFO L85 PathProgramCache]: Analyzing trace with hash -2072578291, now seen corresponding path program 4 times [2022-11-18 19:58:27,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:27,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925645234] [2022-11-18 19:58:27,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:27,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:29,247 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 19:58:29,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:29,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925645234] [2022-11-18 19:58:29,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925645234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:29,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:29,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 19:58:29,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092768080] [2022-11-18 19:58:29,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:29,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 19:58:29,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:29,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 19:58:29,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:58:29,252 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-18 19:58:29,254 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 986 transitions, 15038 flow. Second operand has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 19:58:29,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:29,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-18 19:58:29,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:36,859 INFO L130 PetriNetUnfolder]: 3753/10947 cut-off events. [2022-11-18 19:58:36,859 INFO L131 PetriNetUnfolder]: For 111127/111132 co-relation queries the response was YES. [2022-11-18 19:58:36,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55071 conditions, 10947 events. 3753/10947 cut-off events. For 111127/111132 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 98947 event pairs, 488 based on Foata normal form. 10/10850 useless extension candidates. Maximal degree in co-relation 54856. Up to 1909 conditions per place. [2022-11-18 19:58:36,993 INFO L137 encePairwiseOnDemand]: 238/276 looper letters, 1008 selfloop transitions, 313 changer transitions 31/1461 dead transitions. [2022-11-18 19:58:36,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 1461 transitions, 21634 flow [2022-11-18 19:58:36,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-18 19:58:36,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-11-18 19:58:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 5082 transitions. [2022-11-18 19:58:37,000 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4721293199554069 [2022-11-18 19:58:37,001 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 5082 transitions. [2022-11-18 19:58:37,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 5082 transitions. [2022-11-18 19:58:37,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:37,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 5082 transitions. [2022-11-18 19:58:37,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 130.30769230769232) internal successors, (5082), 39 states have internal predecessors, (5082), 0 states have call successors, (0), 0 states 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 19:58:37,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 276.0) internal successors, (11040), 40 states have internal predecessors, (11040), 0 states have call successors, (0), 0 states 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 19:58:37,187 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 276.0) internal successors, (11040), 40 states have internal predecessors, (11040), 0 states have call successors, (0), 0 states 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 19:58:37,187 INFO L175 Difference]: Start difference. First operand has 514 places, 986 transitions, 15038 flow. Second operand 39 states and 5082 transitions. [2022-11-18 19:58:37,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 1461 transitions, 21634 flow [2022-11-18 19:58:38,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 1461 transitions, 21104 flow, removed 38 selfloop flow, removed 29 redundant places. [2022-11-18 19:58:38,150 INFO L231 Difference]: Finished difference. Result has 527 places, 1016 transitions, 15979 flow [2022-11-18 19:58:38,151 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=14571, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=986, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=283, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=15979, PETRI_PLACES=527, PETRI_TRANSITIONS=1016} [2022-11-18 19:58:38,152 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 248 predicate places. [2022-11-18 19:58:38,152 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1016 transitions, 15979 flow [2022-11-18 19:58:38,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 19:58:38,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:38,153 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] [2022-11-18 19:58:38,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 19:58:38,153 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:58:38,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:38,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1298348175, now seen corresponding path program 5 times [2022-11-18 19:58:38,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:38,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252583629] [2022-11-18 19:58:38,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:38,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:40,315 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 19:58:40,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:40,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252583629] [2022-11-18 19:58:40,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252583629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:40,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:40,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-18 19:58:40,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83526072] [2022-11-18 19:58:40,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:40,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 19:58:40,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:40,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 19:58:40,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:58:40,319 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-18 19:58:40,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 1016 transitions, 15979 flow. Second operand has 21 states, 21 states have (on average 122.47619047619048) internal successors, (2572), 21 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states 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 19:58:40,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:40,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-18 19:58:40,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:48,461 INFO L130 PetriNetUnfolder]: 3758/11024 cut-off events. [2022-11-18 19:58:48,461 INFO L131 PetriNetUnfolder]: For 115765/115770 co-relation queries the response was YES. [2022-11-18 19:58:48,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55692 conditions, 11024 events. 3758/11024 cut-off events. For 115765/115770 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 100470 event pairs, 357 based on Foata normal form. 10/10960 useless extension candidates. Maximal degree in co-relation 55472. Up to 2064 conditions per place. [2022-11-18 19:58:48,588 INFO L137 encePairwiseOnDemand]: 241/276 looper letters, 883 selfloop transitions, 375 changer transitions 37/1404 dead transitions. [2022-11-18 19:58:48,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 1404 transitions, 21407 flow [2022-11-18 19:58:48,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-18 19:58:48,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-11-18 19:58:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 5552 transitions. [2022-11-18 19:58:48,598 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4678126053252444 [2022-11-18 19:58:48,598 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 5552 transitions. [2022-11-18 19:58:48,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 5552 transitions. [2022-11-18 19:58:48,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:48,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 5552 transitions. [2022-11-18 19:58:48,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 129.11627906976744) internal successors, (5552), 43 states have internal predecessors, (5552), 0 states have call successors, (0), 0 states 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 19:58:48,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 276.0) internal successors, (12144), 44 states have internal predecessors, (12144), 0 states have call successors, (0), 0 states 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 19:58:48,626 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 276.0) internal successors, (12144), 44 states have internal predecessors, (12144), 0 states have call successors, (0), 0 states 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 19:58:48,626 INFO L175 Difference]: Start difference. First operand has 527 places, 1016 transitions, 15979 flow. Second operand 43 states and 5552 transitions. [2022-11-18 19:58:48,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 1404 transitions, 21407 flow [2022-11-18 19:58:49,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 1404 transitions, 21007 flow, removed 49 selfloop flow, removed 29 redundant places. [2022-11-18 19:58:49,722 INFO L231 Difference]: Finished difference. Result has 549 places, 1052 transitions, 17167 flow [2022-11-18 19:58:49,723 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=15598, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1016, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=339, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=669, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=17167, PETRI_PLACES=549, PETRI_TRANSITIONS=1052} [2022-11-18 19:58:49,724 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 270 predicate places. [2022-11-18 19:58:49,724 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 1052 transitions, 17167 flow [2022-11-18 19:58:49,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 122.47619047619048) internal successors, (2572), 21 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states 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 19:58:49,724 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:49,725 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] [2022-11-18 19:58:49,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-18 19:58:49,725 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:58:49,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:49,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1072110005, now seen corresponding path program 1 times [2022-11-18 19:58:49,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:49,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435768645] [2022-11-18 19:58:49,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:49,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:53,738 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 19:58:53,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:53,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435768645] [2022-11-18 19:58:53,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435768645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:53,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:53,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-18 19:58:53,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141285979] [2022-11-18 19:58:53,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:53,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:58:53,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:53,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:58:53,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:58:53,743 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 276 [2022-11-18 19:58:53,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 1052 transitions, 17167 flow. Second operand has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states 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 19:58:53,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:53,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 276 [2022-11-18 19:58:53,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:02,815 INFO L130 PetriNetUnfolder]: 4127/12315 cut-off events. [2022-11-18 19:59:02,815 INFO L131 PetriNetUnfolder]: For 139006/139011 co-relation queries the response was YES. [2022-11-18 19:59:02,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62545 conditions, 12315 events. 4127/12315 cut-off events. For 139006/139011 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 114095 event pairs, 849 based on Foata normal form. 17/12239 useless extension candidates. Maximal degree in co-relation 62319. Up to 2094 conditions per place. [2022-11-18 19:59:03,000 INFO L137 encePairwiseOnDemand]: 246/276 looper letters, 1201 selfloop transitions, 212 changer transitions 134/1655 dead transitions. [2022-11-18 19:59:03,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 1655 transitions, 27044 flow [2022-11-18 19:59:03,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-18 19:59:03,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-11-18 19:59:03,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 6823 transitions. [2022-11-18 19:59:03,008 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45779656468062263 [2022-11-18 19:59:03,008 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 6823 transitions. [2022-11-18 19:59:03,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 6823 transitions. [2022-11-18 19:59:03,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:03,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 6823 transitions. [2022-11-18 19:59:03,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 126.35185185185185) internal successors, (6823), 54 states have internal predecessors, (6823), 0 states have call successors, (0), 0 states 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 19:59:03,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 276.0) internal successors, (15180), 55 states have internal predecessors, (15180), 0 states have call successors, (0), 0 states 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 19:59:03,034 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 276.0) internal successors, (15180), 55 states have internal predecessors, (15180), 0 states have call successors, (0), 0 states 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 19:59:03,035 INFO L175 Difference]: Start difference. First operand has 549 places, 1052 transitions, 17167 flow. Second operand 54 states and 6823 transitions. [2022-11-18 19:59:03,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 1655 transitions, 27044 flow [2022-11-18 19:59:04,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 1655 transitions, 26202 flow, removed 173 selfloop flow, removed 39 redundant places. [2022-11-18 19:59:04,315 INFO L231 Difference]: Finished difference. Result has 575 places, 1105 transitions, 17514 flow [2022-11-18 19:59:04,316 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=16562, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=870, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=17514, PETRI_PLACES=575, PETRI_TRANSITIONS=1105} [2022-11-18 19:59:04,317 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 296 predicate places. [2022-11-18 19:59:04,317 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 1105 transitions, 17514 flow [2022-11-18 19:59:04,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states 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 19:59:04,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:04,318 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] [2022-11-18 19:59:04,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-18 19:59:04,318 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:59:04,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:04,319 INFO L85 PathProgramCache]: Analyzing trace with hash -11881588, now seen corresponding path program 1 times [2022-11-18 19:59:04,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:04,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758493001] [2022-11-18 19:59:04,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:04,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:07,169 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 19:59:07,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:07,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758493001] [2022-11-18 19:59:07,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758493001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:07,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:07,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-18 19:59:07,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860076407] [2022-11-18 19:59:07,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:07,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:59:07,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:07,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:59:07,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:59:07,173 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 276 [2022-11-18 19:59:07,174 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 1105 transitions, 17514 flow. Second operand has 23 states, 23 states have (on average 119.04347826086956) internal successors, (2738), 23 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states 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 19:59:07,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:07,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 276 [2022-11-18 19:59:07,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:16,370 INFO L130 PetriNetUnfolder]: 4214/12209 cut-off events. [2022-11-18 19:59:16,370 INFO L131 PetriNetUnfolder]: For 132935/132942 co-relation queries the response was YES. [2022-11-18 19:59:16,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62377 conditions, 12209 events. 4214/12209 cut-off events. For 132935/132942 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 111358 event pairs, 903 based on Foata normal form. 23/12121 useless extension candidates. Maximal degree in co-relation 62149. Up to 2215 conditions per place. [2022-11-18 19:59:16,528 INFO L137 encePairwiseOnDemand]: 236/276 looper letters, 1038 selfloop transitions, 257 changer transitions 79/1480 dead transitions. [2022-11-18 19:59:16,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 1480 transitions, 24715 flow [2022-11-18 19:59:16,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-18 19:59:16,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-11-18 19:59:16,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 5152 transitions. [2022-11-18 19:59:16,534 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45528455284552843 [2022-11-18 19:59:16,534 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 5152 transitions. [2022-11-18 19:59:16,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 5152 transitions. [2022-11-18 19:59:16,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:16,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 5152 transitions. [2022-11-18 19:59:16,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 125.65853658536585) internal successors, (5152), 41 states have internal predecessors, (5152), 0 states have call successors, (0), 0 states 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 19:59:16,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 276.0) internal successors, (11592), 42 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states 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 19:59:16,552 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 276.0) internal successors, (11592), 42 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states 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 19:59:16,552 INFO L175 Difference]: Start difference. First operand has 575 places, 1105 transitions, 17514 flow. Second operand 41 states and 5152 transitions. [2022-11-18 19:59:16,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 1480 transitions, 24715 flow [2022-11-18 19:59:17,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 1480 transitions, 24488 flow, removed 21 selfloop flow, removed 20 redundant places. [2022-11-18 19:59:17,805 INFO L231 Difference]: Finished difference. Result has 598 places, 1127 transitions, 18429 flow [2022-11-18 19:59:17,806 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=17332, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=865, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=18429, PETRI_PLACES=598, PETRI_TRANSITIONS=1127} [2022-11-18 19:59:17,807 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 319 predicate places. [2022-11-18 19:59:17,807 INFO L495 AbstractCegarLoop]: Abstraction has has 598 places, 1127 transitions, 18429 flow [2022-11-18 19:59:17,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 119.04347826086956) internal successors, (2738), 23 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states 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 19:59:17,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:17,808 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:59:17,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-18 19:59:17,808 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:59:17,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:17,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2142203519, now seen corresponding path program 2 times [2022-11-18 19:59:17,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:17,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054495351] [2022-11-18 19:59:17,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:17,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:19,821 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 19:59:19,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:19,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054495351] [2022-11-18 19:59:19,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054495351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:19,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:19,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-18 19:59:19,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672380731] [2022-11-18 19:59:19,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:19,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:59:19,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:19,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:59:19,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:59:19,826 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 276 [2022-11-18 19:59:19,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 1127 transitions, 18429 flow. Second operand has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states 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 19:59:19,828 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:19,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 276 [2022-11-18 19:59:19,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:59:29,494 INFO L130 PetriNetUnfolder]: 4888/14018 cut-off events. [2022-11-18 19:59:29,494 INFO L131 PetriNetUnfolder]: For 174451/174458 co-relation queries the response was YES. [2022-11-18 19:59:29,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76171 conditions, 14018 events. 4888/14018 cut-off events. For 174451/174458 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 130913 event pairs, 1196 based on Foata normal form. 13/13914 useless extension candidates. Maximal degree in co-relation 75935. Up to 2094 conditions per place. [2022-11-18 19:59:29,715 INFO L137 encePairwiseOnDemand]: 239/276 looper letters, 1274 selfloop transitions, 277 changer transitions 30/1689 dead transitions. [2022-11-18 19:59:29,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 640 places, 1689 transitions, 29077 flow [2022-11-18 19:59:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-18 19:59:29,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-18 19:59:29,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 5955 transitions. [2022-11-18 19:59:29,722 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45906567992599445 [2022-11-18 19:59:29,722 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 5955 transitions. [2022-11-18 19:59:29,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 5955 transitions. [2022-11-18 19:59:29,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:59:29,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 5955 transitions. [2022-11-18 19:59:29,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 126.70212765957447) internal successors, (5955), 47 states have internal predecessors, (5955), 0 states have call successors, (0), 0 states 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 19:59:29,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 276.0) internal successors, (13248), 48 states have internal predecessors, (13248), 0 states have call successors, (0), 0 states 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 19:59:29,734 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 276.0) internal successors, (13248), 48 states have internal predecessors, (13248), 0 states have call successors, (0), 0 states 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 19:59:29,734 INFO L175 Difference]: Start difference. First operand has 598 places, 1127 transitions, 18429 flow. Second operand 47 states and 5955 transitions. [2022-11-18 19:59:29,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 640 places, 1689 transitions, 29077 flow [2022-11-18 19:59:31,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 1689 transitions, 28720 flow, removed 42 selfloop flow, removed 24 redundant places. [2022-11-18 19:59:31,467 INFO L231 Difference]: Finished difference. Result has 623 places, 1222 transitions, 21205 flow [2022-11-18 19:59:31,469 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=18140, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=879, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=21205, PETRI_PLACES=623, PETRI_TRANSITIONS=1222} [2022-11-18 19:59:31,469 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 344 predicate places. [2022-11-18 19:59:31,470 INFO L495 AbstractCegarLoop]: Abstraction has has 623 places, 1222 transitions, 21205 flow [2022-11-18 19:59:31,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states 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 19:59:31,470 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:59:31,471 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] [2022-11-18 19:59:31,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-18 19:59:31,471 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 19:59:31,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:59:31,472 INFO L85 PathProgramCache]: Analyzing trace with hash 126299125, now seen corresponding path program 3 times [2022-11-18 19:59:31,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:59:31,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555859054] [2022-11-18 19:59:31,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:59:31,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:59:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:59:33,518 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 19:59:33,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:59:33,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555859054] [2022-11-18 19:59:33,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555859054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:59:33,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:59:33,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-18 19:59:33,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442950763] [2022-11-18 19:59:33,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:59:33,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:59:33,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:59:33,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:59:33,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:59:33,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 276 [2022-11-18 19:59:33,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 1222 transitions, 21205 flow. Second operand has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states 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 19:59:33,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:59:33,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 276 [2022-11-18 19:59:33,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand