./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8 --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 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb --- 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-2329fc7 [2022-12-13 17:33:04,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:33:04,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:33:04,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:33:04,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:33:04,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:33:04,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:33:04,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:33:04,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:33:04,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:33:04,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:33:04,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:33:04,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:33:04,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:33:04,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:33:04,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:33:04,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:33:04,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:33:04,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:33:04,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:33:04,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:33:04,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:33:04,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:33:04,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:33:04,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:33:04,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:33:04,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:33:04,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:33:04,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:33:04,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:33:04,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:33:04,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:33:04,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:33:04,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:33:04,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:33:04,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:33:04,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:33:04,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:33:04,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:33:04,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:33:04,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:33:04,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 17:33:04,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:33:04,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:33:04,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:33:04,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:33:04,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:33:04,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:33:04,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:33:04,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:33:04,630 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:33:04,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:33:04,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:33:04,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:33:04,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:33:04,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:33:04,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:33:04,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:33:04,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:33:04,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:33:04,631 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 17:33:04,631 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:33:04,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:33:04,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:33:04,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:33:04,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:33:04,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:33:04,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:33:04,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:33:04,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:33:04,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:33:04,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:33:04,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:33:04,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:33:04,633 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:33:04,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:33:04,634 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:33:04,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:33:04,634 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:33:04,634 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb [2022-12-13 17:33:04,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:33:04,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:33:04,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:33:04,848 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:33:04,848 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:33:04,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2022-12-13 17:33:07,356 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:33:07,561 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:33:07,561 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2022-12-13 17:33:07,572 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/data/7a2fdac00/c641a2d77b014028945ddf68a71471a6/FLAG61f472271 [2022-12-13 17:33:07,921 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/data/7a2fdac00/c641a2d77b014028945ddf68a71471a6 [2022-12-13 17:33:07,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:33:07,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:33:07,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:33:07,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:33:07,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:33:07,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:33:07" (1/1) ... [2022-12-13 17:33:07,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149bc89b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:07, skipping insertion in model container [2022-12-13 17:33:07,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:33:07" (1/1) ... [2022-12-13 17:33:07,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:33:07,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:33:08,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:33:08,430 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:33:08,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:33:08,526 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:33:08,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08 WrapperNode [2022-12-13 17:33:08,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:33:08,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:33:08,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:33:08,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:33:08,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (1/1) ... [2022-12-13 17:33:08,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (1/1) ... [2022-12-13 17:33:08,579 INFO L138 Inliner]: procedures = 369, calls = 37, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 207 [2022-12-13 17:33:08,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:33:08,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:33:08,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:33:08,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:33:08,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (1/1) ... [2022-12-13 17:33:08,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (1/1) ... [2022-12-13 17:33:08,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (1/1) ... [2022-12-13 17:33:08,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (1/1) ... [2022-12-13 17:33:08,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (1/1) ... [2022-12-13 17:33:08,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (1/1) ... [2022-12-13 17:33:08,604 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (1/1) ... [2022-12-13 17:33:08,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (1/1) ... [2022-12-13 17:33:08,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:33:08,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:33:08,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:33:08,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:33:08,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (1/1) ... [2022-12-13 17:33:08,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:33:08,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:33:08,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:33:08,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd3c85d0-7679-40a9-84ef-d7a3fa8f3774/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:33:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:33:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 17:33:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:33:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:33:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:33:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 17:33:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 17:33:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:33:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 17:33:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 17:33:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 17:33:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:33:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:33:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:33:08,676 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 17:33:08,798 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:33:08,800 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:33:09,130 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:33:09,139 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:33:09,139 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:33:09,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:33:09 BoogieIcfgContainer [2022-12-13 17:33:09,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:33:09,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:33:09,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:33:09,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:33:09,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:33:07" (1/3) ... [2022-12-13 17:33:09,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329dd943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:33:09, skipping insertion in model container [2022-12-13 17:33:09,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:33:08" (2/3) ... [2022-12-13 17:33:09,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329dd943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:33:09, skipping insertion in model container [2022-12-13 17:33:09,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:33:09" (3/3) ... [2022-12-13 17:33:09,149 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2022-12-13 17:33:09,157 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:33:09,166 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:33:09,166 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-12-13 17:33:09,166 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:33:09,223 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:33:09,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 245 transitions, 495 flow [2022-12-13 17:33:09,307 INFO L130 PetriNetUnfolder]: 0/244 cut-off events. [2022-12-13 17:33:09,308 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:33:09,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 244 events. 0/244 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 17:33:09,310 INFO L82 GeneralOperation]: Start removeDead. Operand has 249 places, 245 transitions, 495 flow [2022-12-13 17:33:09,315 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 248 places, 244 transitions, 491 flow [2022-12-13 17:33:09,317 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:33:09,325 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 244 transitions, 491 flow [2022-12-13 17:33:09,328 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 244 transitions, 491 flow [2022-12-13 17:33:09,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 244 transitions, 491 flow [2022-12-13 17:33:09,368 INFO L130 PetriNetUnfolder]: 0/244 cut-off events. [2022-12-13 17:33:09,368 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:33:09,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 244 events. 0/244 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 17:33:09,371 INFO L119 LiptonReduction]: Number of co-enabled transitions 4760 [2022-12-13 17:33:54,557 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:34:09,012 WARN L233 SmtUtils]: Spent 11.16s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:34:18,585 WARN L233 SmtUtils]: Spent 9.57s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:34:27,440 WARN L233 SmtUtils]: Spent 8.84s on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:34:47,731 WARN L233 SmtUtils]: Spent 16.02s on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:34:59,976 WARN L233 SmtUtils]: Spent 12.24s on a formula simplification that was a NOOP. DAG size: 257 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:35:53,223 WARN L233 SmtUtils]: Spent 53.22s on a formula simplification that was a NOOP. DAG size: 343 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:36:32,343 WARN L233 SmtUtils]: Spent 39.12s on a formula simplification that was a NOOP. DAG size: 305 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:37:28,657 WARN L233 SmtUtils]: Spent 56.31s on a formula simplification that was a NOOP. DAG size: 343 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:38:04,687 WARN L233 SmtUtils]: Spent 36.02s on a formula simplification that was a NOOP. DAG size: 305 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:38:04,696 INFO L134 LiptonReduction]: Checked pairs total: 36315 [2022-12-13 17:38:04,697 INFO L136 LiptonReduction]: Total number of compositions: 216 [2022-12-13 17:38:04,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:38:04,713 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;@56af0da0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:38:04,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-12-13 17:38:04,714 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 17:38:04,714 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:38:04,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:04,715 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 17:38:04,715 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:04,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:04,719 INFO L85 PathProgramCache]: Analyzing trace with hash 791, now seen corresponding path program 1 times [2022-12-13 17:38:04,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:04,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820059755] [2022-12-13 17:38:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:04,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:04,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:04,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:04,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820059755] [2022-12-13 17:38:04,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820059755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:04,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:04,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 17:38:04,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092213258] [2022-12-13 17:38:04,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:04,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:38:04,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:04,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:38:04,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:38:04,842 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 461 [2022-12-13 17:38:04,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 244.5) internal successors, (489), 2 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:04,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:04,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 461 [2022-12-13 17:38:04,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:05,190 INFO L130 PetriNetUnfolder]: 75/373 cut-off events. [2022-12-13 17:38:05,190 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:38:05,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 373 events. 75/373 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1754 event pairs, 75 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 541. Up to 173 conditions per place. [2022-12-13 17:38:05,194 INFO L137 encePairwiseOnDemand]: 449/461 looper letters, 22 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2022-12-13 17:38:05,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 177 flow [2022-12-13 17:38:05,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:38:05,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 17:38:05,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 522 transitions. [2022-12-13 17:38:05,209 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5661605206073753 [2022-12-13 17:38:05,210 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 522 transitions. [2022-12-13 17:38:05,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 522 transitions. [2022-12-13 17:38:05,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:05,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 522 transitions. [2022-12-13 17:38:05,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 261.0) internal successors, (522), 2 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:05,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:05,224 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:05,226 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 157 flow. Second operand 2 states and 522 transitions. [2022-12-13 17:38:05,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 177 flow [2022-12-13 17:38:05,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:38:05,231 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2022-12-13 17:38:05,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2022-12-13 17:38:05,236 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, -12 predicate places. [2022-12-13 17:38:05,237 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2022-12-13 17:38:05,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 244.5) internal successors, (489), 2 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:05,237 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:05,238 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:38:05,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:38:05,238 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:05,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:05,239 INFO L85 PathProgramCache]: Analyzing trace with hash 765576315, now seen corresponding path program 1 times [2022-12-13 17:38:05,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:05,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567742710] [2022-12-13 17:38:05,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:05,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:05,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:05,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:05,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567742710] [2022-12-13 17:38:05,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567742710] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:05,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:05,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:38:05,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681766660] [2022-12-13 17:38:05,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:05,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:38:05,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:05,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:38:05,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:38:05,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 461 [2022-12-13 17:38:05,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:05,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:05,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 461 [2022-12-13 17:38:05,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:05,756 INFO L130 PetriNetUnfolder]: 112/486 cut-off events. [2022-12-13 17:38:05,756 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:38:05,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 486 events. 112/486 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2352 event pairs, 112 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 737. Up to 249 conditions per place. [2022-12-13 17:38:05,760 INFO L137 encePairwiseOnDemand]: 457/461 looper letters, 24 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2022-12-13 17:38:05,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 176 flow [2022-12-13 17:38:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:38:05,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:38:05,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 712 transitions. [2022-12-13 17:38:05,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.514822848879248 [2022-12-13 17:38:05,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 712 transitions. [2022-12-13 17:38:05,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 712 transitions. [2022-12-13 17:38:05,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:05,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 712 transitions. [2022-12-13 17:38:05,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:05,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 461.0) internal successors, (1844), 4 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:05,769 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 461.0) internal successors, (1844), 4 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:05,769 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 712 transitions. [2022-12-13 17:38:05,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 176 flow [2022-12-13 17:38:05,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:38:05,770 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2022-12-13 17:38:05,771 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2022-12-13 17:38:05,771 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, -13 predicate places. [2022-12-13 17:38:05,771 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2022-12-13 17:38:05,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:05,772 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:05,772 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:05,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:38:05,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:05,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:05,773 INFO L85 PathProgramCache]: Analyzing trace with hash -689975157, now seen corresponding path program 1 times [2022-12-13 17:38:05,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:05,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882418093] [2022-12-13 17:38:05,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:05,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:06,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:06,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882418093] [2022-12-13 17:38:06,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882418093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:06,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:06,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:38:06,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59190359] [2022-12-13 17:38:06,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:06,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:38:06,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:06,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:38:06,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:38:06,558 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 461 [2022-12-13 17:38:06,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 187.5) internal successors, (1125), 6 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:06,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:06,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 461 [2022-12-13 17:38:06,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:07,434 INFO L130 PetriNetUnfolder]: 432/1062 cut-off events. [2022-12-13 17:38:07,434 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:38:07,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1982 conditions, 1062 events. 432/1062 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5115 event pairs, 329 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 1978. Up to 838 conditions per place. [2022-12-13 17:38:07,437 INFO L137 encePairwiseOnDemand]: 447/461 looper letters, 64 selfloop transitions, 37 changer transitions 0/118 dead transitions. [2022-12-13 17:38:07,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 118 transitions, 442 flow [2022-12-13 17:38:07,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:38:07,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:38:07,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1218 transitions. [2022-12-13 17:38:07,440 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4403470715835141 [2022-12-13 17:38:07,440 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1218 transitions. [2022-12-13 17:38:07,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1218 transitions. [2022-12-13 17:38:07,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:07,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1218 transitions. [2022-12-13 17:38:07,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:07,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 461.0) internal successors, (3227), 7 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:07,457 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 461.0) internal successors, (3227), 7 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:07,457 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 1218 transitions. [2022-12-13 17:38:07,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 118 transitions, 442 flow [2022-12-13 17:38:07,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 118 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:38:07,459 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2022-12-13 17:38:07,460 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2022-12-13 17:38:07,460 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, -5 predicate places. [2022-12-13 17:38:07,460 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2022-12-13 17:38:07,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.5) internal successors, (1125), 6 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:07,461 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:07,461 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:07,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:38:07,461 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:07,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:07,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2093757679, now seen corresponding path program 1 times [2022-12-13 17:38:07,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:07,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714784937] [2022-12-13 17:38:07,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:07,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:07,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:07,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:07,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714784937] [2022-12-13 17:38:07,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714784937] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:07,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:07,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:38:07,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868086169] [2022-12-13 17:38:07,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:07,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:38:07,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:07,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:38:07,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:38:08,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 461 [2022-12-13 17:38:08,091 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:08,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:08,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 461 [2022-12-13 17:38:08,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:09,191 INFO L130 PetriNetUnfolder]: 649/1694 cut-off events. [2022-12-13 17:38:09,192 INFO L131 PetriNetUnfolder]: For 245/260 co-relation queries the response was YES. [2022-12-13 17:38:09,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3742 conditions, 1694 events. 649/1694 cut-off events. For 245/260 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10183 event pairs, 60 based on Foata normal form. 0/1629 useless extension candidates. Maximal degree in co-relation 3734. Up to 721 conditions per place. [2022-12-13 17:38:09,200 INFO L137 encePairwiseOnDemand]: 433/461 looper letters, 145 selfloop transitions, 77 changer transitions 0/254 dead transitions. [2022-12-13 17:38:09,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 254 transitions, 1186 flow [2022-12-13 17:38:09,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:38:09,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:38:09,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1304 transitions. [2022-12-13 17:38:09,202 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47143890093998553 [2022-12-13 17:38:09,202 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1304 transitions. [2022-12-13 17:38:09,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1304 transitions. [2022-12-13 17:38:09,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:09,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1304 transitions. [2022-12-13 17:38:09,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 217.33333333333334) internal successors, (1304), 6 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:09,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 461.0) internal successors, (3227), 7 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:09,208 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 461.0) internal successors, (3227), 7 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:09,208 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1304 transitions. [2022-12-13 17:38:09,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 254 transitions, 1186 flow [2022-12-13 17:38:09,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 254 transitions, 1186 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:38:09,216 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2022-12-13 17:38:09,216 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2022-12-13 17:38:09,217 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2022-12-13 17:38:09,217 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2022-12-13 17:38:09,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:09,218 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:09,218 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:09,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:38:09,218 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:09,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:09,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1022331017, now seen corresponding path program 1 times [2022-12-13 17:38:09,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:09,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150917070] [2022-12-13 17:38:09,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:09,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:09,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:09,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150917070] [2022-12-13 17:38:09,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150917070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:09,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:09,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:38:09,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248999153] [2022-12-13 17:38:09,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:09,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:38:09,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:09,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:38:09,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:38:10,649 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 461 [2022-12-13 17:38:10,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 183.1) internal successors, (1831), 10 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:10,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:10,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 461 [2022-12-13 17:38:10,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:12,781 INFO L130 PetriNetUnfolder]: 792/1953 cut-off events. [2022-12-13 17:38:12,781 INFO L131 PetriNetUnfolder]: For 1547/1566 co-relation queries the response was YES. [2022-12-13 17:38:12,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5860 conditions, 1953 events. 792/1953 cut-off events. For 1547/1566 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11291 event pairs, 296 based on Foata normal form. 4/1928 useless extension candidates. Maximal degree in co-relation 5847. Up to 1323 conditions per place. [2022-12-13 17:38:12,794 INFO L137 encePairwiseOnDemand]: 447/461 looper letters, 237 selfloop transitions, 64 changer transitions 2/335 dead transitions. [2022-12-13 17:38:12,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 335 transitions, 2311 flow [2022-12-13 17:38:12,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:38:12,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 17:38:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2920 transitions. [2022-12-13 17:38:12,802 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4222704266088214 [2022-12-13 17:38:12,802 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2920 transitions. [2022-12-13 17:38:12,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2920 transitions. [2022-12-13 17:38:12,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:12,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2920 transitions. [2022-12-13 17:38:12,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 194.66666666666666) internal successors, (2920), 15 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:12,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 461.0) internal successors, (7376), 16 states have internal predecessors, (7376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:12,823 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 461.0) internal successors, (7376), 16 states have internal predecessors, (7376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:12,824 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2920 transitions. [2022-12-13 17:38:12,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 335 transitions, 2311 flow [2022-12-13 17:38:12,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 335 transitions, 2293 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-12-13 17:38:12,835 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2022-12-13 17:38:12,835 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2022-12-13 17:38:12,836 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 23 predicate places. [2022-12-13 17:38:12,836 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2022-12-13 17:38:12,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 183.1) internal successors, (1831), 10 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:12,837 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:12,837 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:12,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:38:12,837 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:12,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:12,837 INFO L85 PathProgramCache]: Analyzing trace with hash -666134369, now seen corresponding path program 1 times [2022-12-13 17:38:12,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:12,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794428640] [2022-12-13 17:38:12,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:12,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:13,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:13,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794428640] [2022-12-13 17:38:13,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794428640] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:13,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:13,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:38:13,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146236225] [2022-12-13 17:38:13,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:13,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:38:13,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:13,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:38:13,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:38:14,033 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:38:14,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:14,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:14,035 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:38:14,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:15,860 INFO L130 PetriNetUnfolder]: 813/2195 cut-off events. [2022-12-13 17:38:15,860 INFO L131 PetriNetUnfolder]: For 2223/2269 co-relation queries the response was YES. [2022-12-13 17:38:15,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7065 conditions, 2195 events. 813/2195 cut-off events. For 2223/2269 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 14653 event pairs, 81 based on Foata normal form. 25/2188 useless extension candidates. Maximal degree in co-relation 7046. Up to 626 conditions per place. [2022-12-13 17:38:15,874 INFO L137 encePairwiseOnDemand]: 429/461 looper letters, 281 selfloop transitions, 121 changer transitions 2/442 dead transitions. [2022-12-13 17:38:15,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 442 transitions, 3245 flow [2022-12-13 17:38:15,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 17:38:15,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 17:38:15,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2472 transitions. [2022-12-13 17:38:15,877 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44685466377440347 [2022-12-13 17:38:15,877 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2472 transitions. [2022-12-13 17:38:15,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2472 transitions. [2022-12-13 17:38:15,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:15,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2472 transitions. [2022-12-13 17:38:15,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 206.0) internal successors, (2472), 12 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:15,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 461.0) internal successors, (5993), 13 states have internal predecessors, (5993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:15,887 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 461.0) internal successors, (5993), 13 states have internal predecessors, (5993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:15,887 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 12 states and 2472 transitions. [2022-12-13 17:38:15,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 442 transitions, 3245 flow [2022-12-13 17:38:15,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 442 transitions, 3233 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-12-13 17:38:15,900 INFO L231 Difference]: Finished difference. Result has 125 places, 258 transitions, 2206 flow [2022-12-13 17:38:15,900 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2206, PETRI_PLACES=125, PETRI_TRANSITIONS=258} [2022-12-13 17:38:15,900 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 44 predicate places. [2022-12-13 17:38:15,900 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 258 transitions, 2206 flow [2022-12-13 17:38:15,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:15,901 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:15,901 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:15,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:38:15,901 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:15,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:15,902 INFO L85 PathProgramCache]: Analyzing trace with hash 175119557, now seen corresponding path program 2 times [2022-12-13 17:38:15,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:15,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325560458] [2022-12-13 17:38:15,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:15,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:16,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:16,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:16,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325560458] [2022-12-13 17:38:16,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325560458] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:16,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:16,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:38:16,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077322310] [2022-12-13 17:38:16,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:16,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:38:16,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:16,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:38:16,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:38:17,747 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 461 [2022-12-13 17:38:17,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 258 transitions, 2206 flow. Second operand has 10 states, 10 states have (on average 182.1) internal successors, (1821), 10 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:17,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:17,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 461 [2022-12-13 17:38:17,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:20,355 INFO L130 PetriNetUnfolder]: 807/2205 cut-off events. [2022-12-13 17:38:20,356 INFO L131 PetriNetUnfolder]: For 4680/4729 co-relation queries the response was YES. [2022-12-13 17:38:20,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8307 conditions, 2205 events. 807/2205 cut-off events. For 4680/4729 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 14861 event pairs, 53 based on Foata normal form. 20/2192 useless extension candidates. Maximal degree in co-relation 8278. Up to 871 conditions per place. [2022-12-13 17:38:20,365 INFO L137 encePairwiseOnDemand]: 432/461 looper letters, 193 selfloop transitions, 145 changer transitions 0/376 dead transitions. [2022-12-13 17:38:20,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 376 transitions, 3550 flow [2022-12-13 17:38:20,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:38:20,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:38:20,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2202 transitions. [2022-12-13 17:38:20,368 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4342338789193453 [2022-12-13 17:38:20,369 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2202 transitions. [2022-12-13 17:38:20,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2202 transitions. [2022-12-13 17:38:20,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:20,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2202 transitions. [2022-12-13 17:38:20,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 200.1818181818182) internal successors, (2202), 11 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:20,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 461.0) internal successors, (5532), 12 states have internal predecessors, (5532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:20,382 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 461.0) internal successors, (5532), 12 states have internal predecessors, (5532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:20,382 INFO L175 Difference]: Start difference. First operand has 125 places, 258 transitions, 2206 flow. Second operand 11 states and 2202 transitions. [2022-12-13 17:38:20,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 376 transitions, 3550 flow [2022-12-13 17:38:20,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 376 transitions, 3538 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-12-13 17:38:20,427 INFO L231 Difference]: Finished difference. Result has 140 places, 281 transitions, 2979 flow [2022-12-13 17:38:20,428 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=2194, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2979, PETRI_PLACES=140, PETRI_TRANSITIONS=281} [2022-12-13 17:38:20,429 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 59 predicate places. [2022-12-13 17:38:20,429 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 281 transitions, 2979 flow [2022-12-13 17:38:20,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 182.1) internal successors, (1821), 10 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:20,430 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:20,430 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:20,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:38:20,430 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:20,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:20,431 INFO L85 PathProgramCache]: Analyzing trace with hash -348860219, now seen corresponding path program 3 times [2022-12-13 17:38:20,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:20,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263570766] [2022-12-13 17:38:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:20,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:20,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263570766] [2022-12-13 17:38:20,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263570766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:20,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:20,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:38:20,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336928155] [2022-12-13 17:38:20,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:20,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:38:20,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:20,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:38:20,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:38:21,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:38:21,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 281 transitions, 2979 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:21,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:21,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:38:21,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:24,067 INFO L130 PetriNetUnfolder]: 1019/2765 cut-off events. [2022-12-13 17:38:24,067 INFO L131 PetriNetUnfolder]: For 10358/10447 co-relation queries the response was YES. [2022-12-13 17:38:24,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11763 conditions, 2765 events. 1019/2765 cut-off events. For 10358/10447 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 19897 event pairs, 146 based on Foata normal form. 44/2772 useless extension candidates. Maximal degree in co-relation 11728. Up to 656 conditions per place. [2022-12-13 17:38:24,085 INFO L137 encePairwiseOnDemand]: 429/461 looper letters, 328 selfloop transitions, 149 changer transitions 2/517 dead transitions. [2022-12-13 17:38:24,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 517 transitions, 5565 flow [2022-12-13 17:38:24,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 17:38:24,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 17:38:24,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2657 transitions. [2022-12-13 17:38:24,089 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4433505756716169 [2022-12-13 17:38:24,089 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2657 transitions. [2022-12-13 17:38:24,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2657 transitions. [2022-12-13 17:38:24,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:24,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2657 transitions. [2022-12-13 17:38:24,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 204.3846153846154) internal successors, (2657), 13 states have internal predecessors, (2657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:24,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 461.0) internal successors, (6454), 14 states have internal predecessors, (6454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:24,098 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 461.0) internal successors, (6454), 14 states have internal predecessors, (6454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:24,098 INFO L175 Difference]: Start difference. First operand has 140 places, 281 transitions, 2979 flow. Second operand 13 states and 2657 transitions. [2022-12-13 17:38:24,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 517 transitions, 5565 flow [2022-12-13 17:38:24,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 517 transitions, 5542 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:38:24,137 INFO L231 Difference]: Finished difference. Result has 160 places, 330 transitions, 4244 flow [2022-12-13 17:38:24,137 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=2967, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4244, PETRI_PLACES=160, PETRI_TRANSITIONS=330} [2022-12-13 17:38:24,138 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 79 predicate places. [2022-12-13 17:38:24,138 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 330 transitions, 4244 flow [2022-12-13 17:38:24,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:24,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:24,140 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:24,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 17:38:24,140 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:24,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:24,140 INFO L85 PathProgramCache]: Analyzing trace with hash -651644089, now seen corresponding path program 4 times [2022-12-13 17:38:24,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:24,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060354623] [2022-12-13 17:38:24,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:24,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:24,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:24,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:24,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060354623] [2022-12-13 17:38:24,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060354623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:24,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:24,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:38:24,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376897443] [2022-12-13 17:38:24,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:24,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:38:24,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:24,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:38:24,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:38:25,241 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:38:25,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 330 transitions, 4244 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:25,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:25,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:38:25,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:28,716 INFO L130 PetriNetUnfolder]: 1579/4276 cut-off events. [2022-12-13 17:38:28,716 INFO L131 PetriNetUnfolder]: For 23092/23219 co-relation queries the response was YES. [2022-12-13 17:38:28,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19849 conditions, 4276 events. 1579/4276 cut-off events. For 23092/23219 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 34626 event pairs, 145 based on Foata normal form. 79/4301 useless extension candidates. Maximal degree in co-relation 19805. Up to 976 conditions per place. [2022-12-13 17:38:28,741 INFO L137 encePairwiseOnDemand]: 429/461 looper letters, 420 selfloop transitions, 275 changer transitions 3/736 dead transitions. [2022-12-13 17:38:28,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 736 transitions, 9493 flow [2022-12-13 17:38:28,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 17:38:28,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 17:38:28,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3222 transitions. [2022-12-13 17:38:28,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43682212581344904 [2022-12-13 17:38:28,746 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3222 transitions. [2022-12-13 17:38:28,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3222 transitions. [2022-12-13 17:38:28,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:28,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3222 transitions. [2022-12-13 17:38:28,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 201.375) internal successors, (3222), 16 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:28,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 461.0) internal successors, (7837), 17 states have internal predecessors, (7837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:28,764 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 461.0) internal successors, (7837), 17 states have internal predecessors, (7837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:28,764 INFO L175 Difference]: Start difference. First operand has 160 places, 330 transitions, 4244 flow. Second operand 16 states and 3222 transitions. [2022-12-13 17:38:28,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 736 transitions, 9493 flow [2022-12-13 17:38:28,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 736 transitions, 9453 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-12-13 17:38:28,888 INFO L231 Difference]: Finished difference. Result has 184 places, 464 transitions, 7403 flow [2022-12-13 17:38:28,888 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=4222, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7403, PETRI_PLACES=184, PETRI_TRANSITIONS=464} [2022-12-13 17:38:28,889 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 103 predicate places. [2022-12-13 17:38:28,889 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 464 transitions, 7403 flow [2022-12-13 17:38:28,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:28,889 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:28,889 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:28,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:38:28,890 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:28,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:28,890 INFO L85 PathProgramCache]: Analyzing trace with hash -170226017, now seen corresponding path program 5 times [2022-12-13 17:38:28,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:28,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534693785] [2022-12-13 17:38:28,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:28,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:29,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:29,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:29,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534693785] [2022-12-13 17:38:29,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534693785] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:29,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:29,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:38:29,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779525305] [2022-12-13 17:38:29,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:29,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:38:29,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:29,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:38:29,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:38:30,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:38:30,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 464 transitions, 7403 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:30,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:30,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:38:30,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:34,028 INFO L130 PetriNetUnfolder]: 1983/5333 cut-off events. [2022-12-13 17:38:34,028 INFO L131 PetriNetUnfolder]: For 44123/44336 co-relation queries the response was YES. [2022-12-13 17:38:34,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27533 conditions, 5333 events. 1983/5333 cut-off events. For 44123/44336 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 45663 event pairs, 326 based on Foata normal form. 121/5381 useless extension candidates. Maximal degree in co-relation 27479. Up to 1382 conditions per place. [2022-12-13 17:38:34,064 INFO L137 encePairwiseOnDemand]: 429/461 looper letters, 450 selfloop transitions, 302 changer transitions 2/792 dead transitions. [2022-12-13 17:38:34,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 792 transitions, 12237 flow [2022-12-13 17:38:34,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:38:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 17:38:34,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2842 transitions. [2022-12-13 17:38:34,069 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4403470715835141 [2022-12-13 17:38:34,069 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2842 transitions. [2022-12-13 17:38:34,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2842 transitions. [2022-12-13 17:38:34,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:34,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2842 transitions. [2022-12-13 17:38:34,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 203.0) internal successors, (2842), 14 states have internal predecessors, (2842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:34,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:34,080 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:34,080 INFO L175 Difference]: Start difference. First operand has 184 places, 464 transitions, 7403 flow. Second operand 14 states and 2842 transitions. [2022-12-13 17:38:34,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 792 transitions, 12237 flow [2022-12-13 17:38:34,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 792 transitions, 12172 flow, removed 29 selfloop flow, removed 1 redundant places. [2022-12-13 17:38:34,362 INFO L231 Difference]: Finished difference. Result has 208 places, 562 transitions, 10356 flow [2022-12-13 17:38:34,362 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=7346, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10356, PETRI_PLACES=208, PETRI_TRANSITIONS=562} [2022-12-13 17:38:34,362 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 127 predicate places. [2022-12-13 17:38:34,362 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 562 transitions, 10356 flow [2022-12-13 17:38:34,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:34,363 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:34,363 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:34,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 17:38:34,363 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:34,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:34,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1623726767, now seen corresponding path program 6 times [2022-12-13 17:38:34,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:34,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049332519] [2022-12-13 17:38:34,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:34,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:34,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:34,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:34,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049332519] [2022-12-13 17:38:34,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049332519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:34,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:34,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:38:34,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311493037] [2022-12-13 17:38:34,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:34,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:38:34,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:34,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:38:34,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:38:35,244 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:38:35,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 562 transitions, 10356 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:35,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:35,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:38:35,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:38,490 INFO L130 PetriNetUnfolder]: 2208/5899 cut-off events. [2022-12-13 17:38:38,490 INFO L131 PetriNetUnfolder]: For 66197/66455 co-relation queries the response was YES. [2022-12-13 17:38:38,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33410 conditions, 5899 events. 2208/5899 cut-off events. For 66197/66455 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 51650 event pairs, 254 based on Foata normal form. 168/5998 useless extension candidates. Maximal degree in co-relation 33344. Up to 1688 conditions per place. [2022-12-13 17:38:38,528 INFO L137 encePairwiseOnDemand]: 429/461 looper letters, 429 selfloop transitions, 403 changer transitions 3/873 dead transitions. [2022-12-13 17:38:38,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 873 transitions, 15154 flow [2022-12-13 17:38:38,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 17:38:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 17:38:38,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3609 transitions. [2022-12-13 17:38:38,534 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4349240780911063 [2022-12-13 17:38:38,534 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3609 transitions. [2022-12-13 17:38:38,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3609 transitions. [2022-12-13 17:38:38,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:38,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3609 transitions. [2022-12-13 17:38:38,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 200.5) internal successors, (3609), 18 states have internal predecessors, (3609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:38,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 461.0) internal successors, (8759), 19 states have internal predecessors, (8759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:38,561 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 461.0) internal successors, (8759), 19 states have internal predecessors, (8759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:38,561 INFO L175 Difference]: Start difference. First operand has 208 places, 562 transitions, 10356 flow. Second operand 18 states and 3609 transitions. [2022-12-13 17:38:38,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 873 transitions, 15154 flow [2022-12-13 17:38:39,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 873 transitions, 15102 flow, removed 26 selfloop flow, removed 0 redundant places. [2022-12-13 17:38:39,093 INFO L231 Difference]: Finished difference. Result has 237 places, 638 transitions, 13618 flow [2022-12-13 17:38:39,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=10316, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13618, PETRI_PLACES=237, PETRI_TRANSITIONS=638} [2022-12-13 17:38:39,094 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 156 predicate places. [2022-12-13 17:38:39,094 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 638 transitions, 13618 flow [2022-12-13 17:38:39,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:39,094 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:39,094 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:39,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 17:38:39,095 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:39,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:39,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2062983653, now seen corresponding path program 7 times [2022-12-13 17:38:39,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:39,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944392493] [2022-12-13 17:38:39,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:39,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:39,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:39,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:39,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944392493] [2022-12-13 17:38:39,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944392493] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:39,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:39,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:38:39,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063264206] [2022-12-13 17:38:39,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:39,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:38:39,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:39,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:38:39,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:38:40,171 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:38:40,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 638 transitions, 13618 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:40,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:40,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:38:40,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:44,366 INFO L130 PetriNetUnfolder]: 2643/7075 cut-off events. [2022-12-13 17:38:44,366 INFO L131 PetriNetUnfolder]: For 105493/105799 co-relation queries the response was YES. [2022-12-13 17:38:44,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43307 conditions, 7075 events. 2643/7075 cut-off events. For 105493/105799 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 64586 event pairs, 448 based on Foata normal form. 168/7156 useless extension candidates. Maximal degree in co-relation 43228. Up to 1881 conditions per place. [2022-12-13 17:38:44,413 INFO L137 encePairwiseOnDemand]: 429/461 looper letters, 556 selfloop transitions, 390 changer transitions 2/986 dead transitions. [2022-12-13 17:38:44,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 986 transitions, 20058 flow [2022-12-13 17:38:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:38:44,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 17:38:44,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2829 transitions. [2022-12-13 17:38:44,418 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43833281685776265 [2022-12-13 17:38:44,418 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2829 transitions. [2022-12-13 17:38:44,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2829 transitions. [2022-12-13 17:38:44,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:44,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2829 transitions. [2022-12-13 17:38:44,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 202.07142857142858) internal successors, (2829), 14 states have internal predecessors, (2829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:44,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:44,425 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:44,425 INFO L175 Difference]: Start difference. First operand has 237 places, 638 transitions, 13618 flow. Second operand 14 states and 2829 transitions. [2022-12-13 17:38:44,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 986 transitions, 20058 flow [2022-12-13 17:38:45,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 986 transitions, 19990 flow, removed 25 selfloop flow, removed 4 redundant places. [2022-12-13 17:38:45,328 INFO L231 Difference]: Finished difference. Result has 258 places, 737 transitions, 17534 flow [2022-12-13 17:38:45,329 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=13567, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=295, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17534, PETRI_PLACES=258, PETRI_TRANSITIONS=737} [2022-12-13 17:38:45,330 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 177 predicate places. [2022-12-13 17:38:45,330 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 737 transitions, 17534 flow [2022-12-13 17:38:45,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:45,330 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:45,331 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:45,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 17:38:45,331 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:45,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:45,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1204567397, now seen corresponding path program 8 times [2022-12-13 17:38:45,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:45,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96945751] [2022-12-13 17:38:45,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:45,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:45,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:45,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96945751] [2022-12-13 17:38:45,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96945751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:45,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:45,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:38:45,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312415142] [2022-12-13 17:38:45,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:45,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:38:45,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:45,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:38:45,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:38:46,460 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:38:46,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 737 transitions, 17534 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:46,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:46,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:38:46,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:51,974 INFO L130 PetriNetUnfolder]: 2798/7518 cut-off events. [2022-12-13 17:38:51,974 INFO L131 PetriNetUnfolder]: For 138470/138724 co-relation queries the response was YES. [2022-12-13 17:38:52,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49116 conditions, 7518 events. 2798/7518 cut-off events. For 138470/138724 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 69900 event pairs, 285 based on Foata normal form. 139/7569 useless extension candidates. Maximal degree in co-relation 49026. Up to 1945 conditions per place. [2022-12-13 17:38:52,030 INFO L137 encePairwiseOnDemand]: 429/461 looper letters, 522 selfloop transitions, 485 changer transitions 3/1048 dead transitions. [2022-12-13 17:38:52,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 1048 transitions, 23121 flow [2022-12-13 17:38:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 17:38:52,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 17:38:52,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3415 transitions. [2022-12-13 17:38:52,033 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43575347709582746 [2022-12-13 17:38:52,033 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3415 transitions. [2022-12-13 17:38:52,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3415 transitions. [2022-12-13 17:38:52,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:52,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3415 transitions. [2022-12-13 17:38:52,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 200.88235294117646) internal successors, (3415), 17 states have internal predecessors, (3415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:52,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 461.0) internal successors, (8298), 18 states have internal predecessors, (8298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:52,040 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 461.0) internal successors, (8298), 18 states have internal predecessors, (8298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:52,040 INFO L175 Difference]: Start difference. First operand has 258 places, 737 transitions, 17534 flow. Second operand 17 states and 3415 transitions. [2022-12-13 17:38:52,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 1048 transitions, 23121 flow [2022-12-13 17:38:53,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 1048 transitions, 23041 flow, removed 40 selfloop flow, removed 0 redundant places. [2022-12-13 17:38:53,450 INFO L231 Difference]: Finished difference. Result has 285 places, 801 transitions, 21144 flow [2022-12-13 17:38:53,451 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=17464, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=737, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=421, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=21144, PETRI_PLACES=285, PETRI_TRANSITIONS=801} [2022-12-13 17:38:53,451 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 204 predicate places. [2022-12-13 17:38:53,451 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 801 transitions, 21144 flow [2022-12-13 17:38:53,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:53,451 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:53,451 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:53,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 17:38:53,451 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:38:53,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:53,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1510060345, now seen corresponding path program 9 times [2022-12-13 17:38:53,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:53,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261378374] [2022-12-13 17:38:53,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:53,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:38:53,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:53,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261378374] [2022-12-13 17:38:53,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261378374] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:53,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:53,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:38:53,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049588571] [2022-12-13 17:38:53,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:53,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:38:53,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:53,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:38:53,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:38:54,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:38:54,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 801 transitions, 21144 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:38:54,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:54,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:38:54,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:39:00,023 INFO L130 PetriNetUnfolder]: 3009/8111 cut-off events. [2022-12-13 17:39:00,024 INFO L131 PetriNetUnfolder]: For 187651/188025 co-relation queries the response was YES. [2022-12-13 17:39:00,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56570 conditions, 8111 events. 3009/8111 cut-off events. For 187651/188025 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 76769 event pairs, 309 based on Foata normal form. 218/8237 useless extension candidates. Maximal degree in co-relation 56468. Up to 2216 conditions per place. [2022-12-13 17:39:00,088 INFO L137 encePairwiseOnDemand]: 430/461 looper letters, 509 selfloop transitions, 542 changer transitions 2/1091 dead transitions. [2022-12-13 17:39:00,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 1091 transitions, 27438 flow [2022-12-13 17:39:00,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:39:00,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 17:39:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2813 transitions. [2022-12-13 17:39:00,091 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4358537341183762 [2022-12-13 17:39:00,091 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2813 transitions. [2022-12-13 17:39:00,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2813 transitions. [2022-12-13 17:39:00,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:39:00,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2813 transitions. [2022-12-13 17:39:00,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 200.92857142857142) internal successors, (2813), 14 states have internal predecessors, (2813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:00,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:00,098 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:00,098 INFO L175 Difference]: Start difference. First operand has 285 places, 801 transitions, 21144 flow. Second operand 14 states and 2813 transitions. [2022-12-13 17:39:00,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 1091 transitions, 27438 flow [2022-12-13 17:39:01,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 1091 transitions, 27376 flow, removed 27 selfloop flow, removed 2 redundant places. [2022-12-13 17:39:01,808 INFO L231 Difference]: Finished difference. Result has 308 places, 872 transitions, 25468 flow [2022-12-13 17:39:01,809 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=21090, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=801, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=471, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25468, PETRI_PLACES=308, PETRI_TRANSITIONS=872} [2022-12-13 17:39:01,809 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 227 predicate places. [2022-12-13 17:39:01,809 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 872 transitions, 25468 flow [2022-12-13 17:39:01,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:01,810 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:39:01,810 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:39:01,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 17:39:01,810 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:39:01,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:39:01,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1080291535, now seen corresponding path program 10 times [2022-12-13 17:39:01,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:39:01,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508720688] [2022-12-13 17:39:01,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:39:01,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:39:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:39:02,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:39:02,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:39:02,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508720688] [2022-12-13 17:39:02,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508720688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:39:02,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:39:02,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:39:02,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647137539] [2022-12-13 17:39:02,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:39:02,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:39:02,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:39:02,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:39:02,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:39:02,794 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:39:02,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 872 transitions, 25468 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:02,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:39:02,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:39:02,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:39:08,788 INFO L130 PetriNetUnfolder]: 3189/8630 cut-off events. [2022-12-13 17:39:08,788 INFO L131 PetriNetUnfolder]: For 246334/246616 co-relation queries the response was YES. [2022-12-13 17:39:08,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63714 conditions, 8630 events. 3189/8630 cut-off events. For 246334/246616 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 83004 event pairs, 419 based on Foata normal form. 129/8665 useless extension candidates. Maximal degree in co-relation 63601. Up to 2528 conditions per place. [2022-12-13 17:39:08,861 INFO L137 encePairwiseOnDemand]: 432/461 looper letters, 465 selfloop transitions, 576 changer transitions 2/1081 dead transitions. [2022-12-13 17:39:08,861 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 1081 transitions, 30578 flow [2022-12-13 17:39:08,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 17:39:08,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 17:39:08,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2590 transitions. [2022-12-13 17:39:08,865 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4321708660103454 [2022-12-13 17:39:08,865 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2590 transitions. [2022-12-13 17:39:08,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2590 transitions. [2022-12-13 17:39:08,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:39:08,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2590 transitions. [2022-12-13 17:39:08,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 199.23076923076923) internal successors, (2590), 13 states have internal predecessors, (2590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:08,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 461.0) internal successors, (6454), 14 states have internal predecessors, (6454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:08,903 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 461.0) internal successors, (6454), 14 states have internal predecessors, (6454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:08,903 INFO L175 Difference]: Start difference. First operand has 308 places, 872 transitions, 25468 flow. Second operand 13 states and 2590 transitions. [2022-12-13 17:39:08,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 1081 transitions, 30578 flow [2022-12-13 17:39:11,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1081 transitions, 30401 flow, removed 87 selfloop flow, removed 1 redundant places. [2022-12-13 17:39:11,294 INFO L231 Difference]: Finished difference. Result has 329 places, 917 transitions, 29237 flow [2022-12-13 17:39:11,294 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=25317, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=872, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=531, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=29237, PETRI_PLACES=329, PETRI_TRANSITIONS=917} [2022-12-13 17:39:11,295 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 248 predicate places. [2022-12-13 17:39:11,295 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 917 transitions, 29237 flow [2022-12-13 17:39:11,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:11,295 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:39:11,295 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:39:11,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 17:39:11,295 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:39:11,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:39:11,296 INFO L85 PathProgramCache]: Analyzing trace with hash -338250779, now seen corresponding path program 11 times [2022-12-13 17:39:11,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:39:11,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465542810] [2022-12-13 17:39:11,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:39:11,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:39:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:39:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:39:11,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:39:11,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465542810] [2022-12-13 17:39:11,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465542810] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:39:11,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:39:11,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:39:11,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765344251] [2022-12-13 17:39:11,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:39:11,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:39:11,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:39:11,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:39:11,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:39:12,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:39:12,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 917 transitions, 29237 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:12,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:39:12,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:39:12,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:39:18,878 INFO L130 PetriNetUnfolder]: 3402/9126 cut-off events. [2022-12-13 17:39:18,878 INFO L131 PetriNetUnfolder]: For 314161/314591 co-relation queries the response was YES. [2022-12-13 17:39:18,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71272 conditions, 9126 events. 3402/9126 cut-off events. For 314161/314591 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 88696 event pairs, 501 based on Foata normal form. 216/9230 useless extension candidates. Maximal degree in co-relation 71149. Up to 2632 conditions per place. [2022-12-13 17:39:19,000 INFO L137 encePairwiseOnDemand]: 429/461 looper letters, 542 selfloop transitions, 608 changer transitions 2/1190 dead transitions. [2022-12-13 17:39:19,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 1190 transitions, 35178 flow [2022-12-13 17:39:19,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:39:19,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 17:39:19,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2854 transitions. [2022-12-13 17:39:19,005 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4422063836380539 [2022-12-13 17:39:19,005 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2854 transitions. [2022-12-13 17:39:19,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2854 transitions. [2022-12-13 17:39:19,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:39:19,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2854 transitions. [2022-12-13 17:39:19,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 203.85714285714286) internal successors, (2854), 14 states have internal predecessors, (2854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:19,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:19,016 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:19,016 INFO L175 Difference]: Start difference. First operand has 329 places, 917 transitions, 29237 flow. Second operand 14 states and 2854 transitions. [2022-12-13 17:39:19,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 1190 transitions, 35178 flow [2022-12-13 17:39:22,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 1190 transitions, 35039 flow, removed 60 selfloop flow, removed 1 redundant places. [2022-12-13 17:39:22,699 INFO L231 Difference]: Finished difference. Result has 351 places, 970 transitions, 33484 flow [2022-12-13 17:39:22,700 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=29100, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=917, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=556, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33484, PETRI_PLACES=351, PETRI_TRANSITIONS=970} [2022-12-13 17:39:22,700 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 270 predicate places. [2022-12-13 17:39:22,700 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 970 transitions, 33484 flow [2022-12-13 17:39:22,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:22,700 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:39:22,700 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:39:22,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 17:39:22,700 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:39:22,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:39:22,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1090900975, now seen corresponding path program 12 times [2022-12-13 17:39:22,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:39:22,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046404702] [2022-12-13 17:39:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:39:22,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:39:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:39:23,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:39:23,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:39:23,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046404702] [2022-12-13 17:39:23,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046404702] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:39:23,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:39:23,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:39:23,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595192714] [2022-12-13 17:39:23,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:39:23,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:39:23,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:39:23,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:39:23,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:39:23,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:39:23,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 970 transitions, 33484 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:23,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:39:23,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:39:23,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:39:30,248 INFO L130 PetriNetUnfolder]: 3542/9607 cut-off events. [2022-12-13 17:39:30,248 INFO L131 PetriNetUnfolder]: For 384546/384977 co-relation queries the response was YES. [2022-12-13 17:39:30,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78595 conditions, 9607 events. 3542/9607 cut-off events. For 384546/384977 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 95120 event pairs, 424 based on Foata normal form. 252/9746 useless extension candidates. Maximal degree in co-relation 78462. Up to 2634 conditions per place. [2022-12-13 17:39:30,339 INFO L137 encePairwiseOnDemand]: 431/461 looper letters, 533 selfloop transitions, 632 changer transitions 2/1205 dead transitions. [2022-12-13 17:39:30,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1205 transitions, 39547 flow [2022-12-13 17:39:30,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:39:30,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 17:39:30,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2790 transitions. [2022-12-13 17:39:30,342 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4322900526805082 [2022-12-13 17:39:30,343 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2790 transitions. [2022-12-13 17:39:30,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2790 transitions. [2022-12-13 17:39:30,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:39:30,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2790 transitions. [2022-12-13 17:39:30,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 199.28571428571428) internal successors, (2790), 14 states have internal predecessors, (2790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:30,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:30,353 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:30,354 INFO L175 Difference]: Start difference. First operand has 351 places, 970 transitions, 33484 flow. Second operand 14 states and 2790 transitions. [2022-12-13 17:39:30,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1205 transitions, 39547 flow [2022-12-13 17:39:34,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 1205 transitions, 39403 flow, removed 50 selfloop flow, removed 1 redundant places. [2022-12-13 17:39:34,669 INFO L231 Difference]: Finished difference. Result has 373 places, 1021 transitions, 37931 flow [2022-12-13 17:39:34,670 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=33350, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=581, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=37931, PETRI_PLACES=373, PETRI_TRANSITIONS=1021} [2022-12-13 17:39:34,670 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 292 predicate places. [2022-12-13 17:39:34,670 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 1021 transitions, 37931 flow [2022-12-13 17:39:34,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:34,671 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:39:34,671 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:39:34,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 17:39:34,671 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:39:34,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:39:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash -589385387, now seen corresponding path program 13 times [2022-12-13 17:39:34,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:39:34,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092063022] [2022-12-13 17:39:34,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:39:34,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:39:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:39:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:39:34,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:39:34,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092063022] [2022-12-13 17:39:34,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092063022] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:39:34,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:39:34,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:39:34,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096958702] [2022-12-13 17:39:34,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:39:34,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:39:34,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:39:34,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:39:34,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:39:35,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:39:35,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 1021 transitions, 37931 flow. Second operand has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:35,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:39:35,676 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:39:35,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:39:43,109 INFO L130 PetriNetUnfolder]: 3690/10118 cut-off events. [2022-12-13 17:39:43,109 INFO L131 PetriNetUnfolder]: For 467278/467640 co-relation queries the response was YES. [2022-12-13 17:39:43,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85775 conditions, 10118 events. 3690/10118 cut-off events. For 467278/467640 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 101935 event pairs, 403 based on Foata normal form. 152/10149 useless extension candidates. Maximal degree in co-relation 85633. Up to 3013 conditions per place. [2022-12-13 17:39:43,216 INFO L137 encePairwiseOnDemand]: 430/461 looper letters, 513 selfloop transitions, 731 changer transitions 2/1284 dead transitions. [2022-12-13 17:39:43,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 1284 transitions, 44572 flow [2022-12-13 17:39:43,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:39:43,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 17:39:43,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2824 transitions. [2022-12-13 17:39:43,221 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4375581035017044 [2022-12-13 17:39:43,221 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2824 transitions. [2022-12-13 17:39:43,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2824 transitions. [2022-12-13 17:39:43,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:39:43,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2824 transitions. [2022-12-13 17:39:43,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 201.71428571428572) internal successors, (2824), 14 states have internal predecessors, (2824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:43,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:43,232 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 461.0) internal successors, (6915), 15 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:43,232 INFO L175 Difference]: Start difference. First operand has 373 places, 1021 transitions, 37931 flow. Second operand 14 states and 2824 transitions. [2022-12-13 17:39:43,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 1284 transitions, 44572 flow [2022-12-13 17:39:48,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 1284 transitions, 44359 flow, removed 66 selfloop flow, removed 3 redundant places. [2022-12-13 17:39:48,901 INFO L231 Difference]: Finished difference. Result has 395 places, 1078 transitions, 43111 flow [2022-12-13 17:39:48,901 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=37746, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1021, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=676, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=43111, PETRI_PLACES=395, PETRI_TRANSITIONS=1078} [2022-12-13 17:39:48,901 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 314 predicate places. [2022-12-13 17:39:48,902 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 1078 transitions, 43111 flow [2022-12-13 17:39:48,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.1) internal successors, (1811), 10 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:48,902 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:39:48,902 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:39:48,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 17:39:48,902 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:39:48,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:39:48,902 INFO L85 PathProgramCache]: Analyzing trace with hash -713785999, now seen corresponding path program 1 times [2022-12-13 17:39:48,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:39:48,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342826512] [2022-12-13 17:39:48,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:39:48,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:39:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:39:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:39:49,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:39:49,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342826512] [2022-12-13 17:39:49,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342826512] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:39:49,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:39:49,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:39:49,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442603281] [2022-12-13 17:39:49,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:39:49,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:39:49,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:39:49,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:39:49,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:39:50,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 461 [2022-12-13 17:39:50,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 1078 transitions, 43111 flow. Second operand has 10 states, 10 states have (on average 182.2) internal successors, (1822), 10 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:50,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:39:50,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 461 [2022-12-13 17:39:50,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:39:57,703 INFO L130 PetriNetUnfolder]: 3690/10199 cut-off events. [2022-12-13 17:39:57,703 INFO L131 PetriNetUnfolder]: For 538857/539144 co-relation queries the response was YES. [2022-12-13 17:39:57,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89912 conditions, 10199 events. 3690/10199 cut-off events. For 538857/539144 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 103457 event pairs, 547 based on Foata normal form. 108/10191 useless extension candidates. Maximal degree in co-relation 89759. Up to 4366 conditions per place. [2022-12-13 17:39:57,833 INFO L137 encePairwiseOnDemand]: 435/461 looper letters, 764 selfloop transitions, 423 changer transitions 0/1225 dead transitions. [2022-12-13 17:39:57,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 1225 transitions, 47503 flow [2022-12-13 17:39:57,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:39:57,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:39:57,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2202 transitions. [2022-12-13 17:39:57,837 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4342338789193453 [2022-12-13 17:39:57,838 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2202 transitions. [2022-12-13 17:39:57,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2202 transitions. [2022-12-13 17:39:57,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:39:57,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2202 transitions. [2022-12-13 17:39:57,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 200.1818181818182) internal successors, (2202), 11 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:57,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 461.0) internal successors, (5532), 12 states have internal predecessors, (5532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:57,845 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 461.0) internal successors, (5532), 12 states have internal predecessors, (5532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:39:57,845 INFO L175 Difference]: Start difference. First operand has 395 places, 1078 transitions, 43111 flow. Second operand 11 states and 2202 transitions. [2022-12-13 17:39:57,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 1225 transitions, 47503 flow [2022-12-13 17:40:05,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 1225 transitions, 47363 flow, removed 70 selfloop flow, removed 0 redundant places. [2022-12-13 17:40:05,056 INFO L231 Difference]: Finished difference. Result has 410 places, 1086 transitions, 44775 flow [2022-12-13 17:40:05,057 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=42995, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1078, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=658, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=44775, PETRI_PLACES=410, PETRI_TRANSITIONS=1086} [2022-12-13 17:40:05,057 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 329 predicate places. [2022-12-13 17:40:05,057 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 1086 transitions, 44775 flow [2022-12-13 17:40:05,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 182.2) internal successors, (1822), 10 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:05,058 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:40:05,058 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:40:05,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 17:40:05,058 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:40:05,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:40:05,058 INFO L85 PathProgramCache]: Analyzing trace with hash -279768772, now seen corresponding path program 1 times [2022-12-13 17:40:05,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:40:05,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574005274] [2022-12-13 17:40:05,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:40:05,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:40:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:40:05,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:40:05,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:40:05,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574005274] [2022-12-13 17:40:05,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574005274] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:40:05,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:40:05,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:40:05,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526562220] [2022-12-13 17:40:05,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:40:05,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:40:05,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:40:05,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:40:05,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:40:05,549 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 461 [2022-12-13 17:40:05,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 1086 transitions, 44775 flow. Second operand has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:05,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:40:05,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 461 [2022-12-13 17:40:05,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:40:14,181 INFO L130 PetriNetUnfolder]: 6205/14911 cut-off events. [2022-12-13 17:40:14,181 INFO L131 PetriNetUnfolder]: For 765183/765624 co-relation queries the response was YES. [2022-12-13 17:40:14,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123243 conditions, 14911 events. 6205/14911 cut-off events. For 765183/765624 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 143280 event pairs, 2551 based on Foata normal form. 0/14578 useless extension candidates. Maximal degree in co-relation 123084. Up to 11620 conditions per place. [2022-12-13 17:40:14,360 INFO L137 encePairwiseOnDemand]: 447/461 looper letters, 990 selfloop transitions, 174 changer transitions 0/1357 dead transitions. [2022-12-13 17:40:14,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 1357 transitions, 56947 flow [2022-12-13 17:40:14,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:40:14,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:40:14,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1219 transitions. [2022-12-13 17:40:14,362 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44070860448300797 [2022-12-13 17:40:14,363 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1219 transitions. [2022-12-13 17:40:14,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1219 transitions. [2022-12-13 17:40:14,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:40:14,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1219 transitions. [2022-12-13 17:40:14,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.16666666666666) internal successors, (1219), 6 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:14,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 461.0) internal successors, (3227), 7 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:14,366 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 461.0) internal successors, (3227), 7 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:14,366 INFO L175 Difference]: Start difference. First operand has 410 places, 1086 transitions, 44775 flow. Second operand 6 states and 1219 transitions. [2022-12-13 17:40:14,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 1357 transitions, 56947 flow [2022-12-13 17:40:23,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 1357 transitions, 56893 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-12-13 17:40:23,731 INFO L231 Difference]: Finished difference. Result has 414 places, 1225 transitions, 48997 flow [2022-12-13 17:40:23,732 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=44721, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1086, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=984, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=48997, PETRI_PLACES=414, PETRI_TRANSITIONS=1225} [2022-12-13 17:40:23,732 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 333 predicate places. [2022-12-13 17:40:23,732 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 1225 transitions, 48997 flow [2022-12-13 17:40:23,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:23,733 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:40:23,733 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:40:23,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 17:40:23,733 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:40:23,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:40:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1928638536, now seen corresponding path program 1 times [2022-12-13 17:40:23,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:40:23,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794603031] [2022-12-13 17:40:23,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:40:23,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:40:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:40:23,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:40:23,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:40:23,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794603031] [2022-12-13 17:40:23,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794603031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:40:23,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:40:23,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:40:23,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474292091] [2022-12-13 17:40:23,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:40:23,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:40:23,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:40:23,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:40:23,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:40:24,123 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 461 [2022-12-13 17:40:24,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 1225 transitions, 48997 flow. Second operand has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:24,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:40:24,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 461 [2022-12-13 17:40:24,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:40:35,117 INFO L130 PetriNetUnfolder]: 7402/18098 cut-off events. [2022-12-13 17:40:35,117 INFO L131 PetriNetUnfolder]: For 1000165/1001020 co-relation queries the response was YES. [2022-12-13 17:40:35,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158511 conditions, 18098 events. 7402/18098 cut-off events. For 1000165/1001020 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 184032 event pairs, 843 based on Foata normal form. 66/17678 useless extension candidates. Maximal degree in co-relation 158348. Up to 10077 conditions per place. [2022-12-13 17:40:35,378 INFO L137 encePairwiseOnDemand]: 439/461 looper letters, 1029 selfloop transitions, 746 changer transitions 4/2110 dead transitions. [2022-12-13 17:40:35,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 2110 transitions, 92701 flow [2022-12-13 17:40:35,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:40:35,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:40:35,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1309 transitions. [2022-12-13 17:40:35,380 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4732465654374548 [2022-12-13 17:40:35,380 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1309 transitions. [2022-12-13 17:40:35,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1309 transitions. [2022-12-13 17:40:35,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:40:35,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1309 transitions. [2022-12-13 17:40:35,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 218.16666666666666) internal successors, (1309), 6 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:35,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 461.0) internal successors, (3227), 7 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:35,383 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 461.0) internal successors, (3227), 7 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:35,383 INFO L175 Difference]: Start difference. First operand has 414 places, 1225 transitions, 48997 flow. Second operand 6 states and 1309 transitions. [2022-12-13 17:40:35,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 2110 transitions, 92701 flow [2022-12-13 17:40:52,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 2110 transitions, 91262 flow, removed 248 selfloop flow, removed 1 redundant places. [2022-12-13 17:40:52,407 INFO L231 Difference]: Finished difference. Result has 423 places, 1793 transitions, 79229 flow [2022-12-13 17:40:52,407 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=48030, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=917, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79229, PETRI_PLACES=423, PETRI_TRANSITIONS=1793} [2022-12-13 17:40:52,408 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 342 predicate places. [2022-12-13 17:40:52,408 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 1793 transitions, 79229 flow [2022-12-13 17:40:52,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:52,408 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:40:52,408 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] [2022-12-13 17:40:52,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 17:40:52,408 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:40:52,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:40:52,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1867886070, now seen corresponding path program 1 times [2022-12-13 17:40:52,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:40:52,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458393992] [2022-12-13 17:40:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:40:52,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:40:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:40:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:40:52,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:40:52,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458393992] [2022-12-13 17:40:52,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458393992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:40:52,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:40:52,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:40:52,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960600217] [2022-12-13 17:40:52,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:40:52,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:40:52,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:40:52,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:40:52,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:40:53,487 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 461 [2022-12-13 17:40:53,489 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 1793 transitions, 79229 flow. Second operand has 10 states, 10 states have (on average 181.7) internal successors, (1817), 10 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:40:53,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:40:53,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 461 [2022-12-13 17:40:53,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:41:08,074 INFO L130 PetriNetUnfolder]: 6417/16860 cut-off events. [2022-12-13 17:41:08,074 INFO L131 PetriNetUnfolder]: For 1056696/1057529 co-relation queries the response was YES. [2022-12-13 17:41:08,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166494 conditions, 16860 events. 6417/16860 cut-off events. For 1056696/1057529 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 178141 event pairs, 746 based on Foata normal form. 285/17002 useless extension candidates. Maximal degree in co-relation 166327. Up to 8213 conditions per place. [2022-12-13 17:41:08,350 INFO L137 encePairwiseOnDemand]: 436/461 looper letters, 1428 selfloop transitions, 581 changer transitions 7/2073 dead transitions. [2022-12-13 17:41:08,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 2073 transitions, 87052 flow [2022-12-13 17:41:08,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 17:41:08,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 17:41:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3532 transitions. [2022-12-13 17:41:08,355 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42564473367076405 [2022-12-13 17:41:08,355 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3532 transitions. [2022-12-13 17:41:08,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3532 transitions. [2022-12-13 17:41:08,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:41:08,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3532 transitions. [2022-12-13 17:41:08,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 196.22222222222223) internal successors, (3532), 18 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:41:08,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 461.0) internal successors, (8759), 19 states have internal predecessors, (8759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:41:08,366 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 461.0) internal successors, (8759), 19 states have internal predecessors, (8759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:41:08,366 INFO L175 Difference]: Start difference. First operand has 423 places, 1793 transitions, 79229 flow. Second operand 18 states and 3532 transitions. [2022-12-13 17:41:08,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 2073 transitions, 87052 flow [2022-12-13 17:41:25,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 2073 transitions, 86260 flow, removed 396 selfloop flow, removed 0 redundant places. [2022-12-13 17:41:25,807 INFO L231 Difference]: Finished difference. Result has 445 places, 1820 transitions, 81813 flow [2022-12-13 17:41:25,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=78437, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1793, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=554, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=81813, PETRI_PLACES=445, PETRI_TRANSITIONS=1820} [2022-12-13 17:41:25,808 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 364 predicate places. [2022-12-13 17:41:25,808 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 1820 transitions, 81813 flow [2022-12-13 17:41:25,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.7) internal successors, (1817), 10 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:41:25,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:41:25,808 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] [2022-12-13 17:41:25,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 17:41:25,809 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:41:25,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:41:25,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1393476254, now seen corresponding path program 1 times [2022-12-13 17:41:25,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:41:25,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234556658] [2022-12-13 17:41:25,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:41:25,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:41:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:41:26,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:41:26,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:41:26,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234556658] [2022-12-13 17:41:26,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234556658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:41:26,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:41:26,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:41:26,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732764733] [2022-12-13 17:41:26,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:41:26,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:41:26,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:41:26,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:41:26,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:41:27,031 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 461 [2022-12-13 17:41:27,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 1820 transitions, 81813 flow. Second operand has 10 states, 10 states have (on average 183.4) internal successors, (1834), 10 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:41:27,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:41:27,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 461 [2022-12-13 17:41:27,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:41:45,194 INFO L130 PetriNetUnfolder]: 8428/19847 cut-off events. [2022-12-13 17:41:45,194 INFO L131 PetriNetUnfolder]: For 1136543/1137321 co-relation queries the response was YES. [2022-12-13 17:41:45,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184008 conditions, 19847 events. 8428/19847 cut-off events. For 1136543/1137321 co-relation queries the response was YES. Maximal size of possible extension queue 698. Compared 196506 event pairs, 2059 based on Foata normal form. 94/19616 useless extension candidates. Maximal degree in co-relation 183835. Up to 12678 conditions per place. [2022-12-13 17:41:45,516 INFO L137 encePairwiseOnDemand]: 447/461 looper letters, 1277 selfloop transitions, 493 changer transitions 2/2100 dead transitions. [2022-12-13 17:41:45,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 2100 transitions, 94128 flow [2022-12-13 17:41:45,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:41:45,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 17:41:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2923 transitions. [2022-12-13 17:41:45,520 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42270426608821404 [2022-12-13 17:41:45,520 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2923 transitions. [2022-12-13 17:41:45,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2923 transitions. [2022-12-13 17:41:45,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:41:45,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2923 transitions. [2022-12-13 17:41:45,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 194.86666666666667) internal successors, (2923), 15 states have internal predecessors, (2923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:41:45,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 461.0) internal successors, (7376), 16 states have internal predecessors, (7376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:41:45,527 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 461.0) internal successors, (7376), 16 states have internal predecessors, (7376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:41:45,527 INFO L175 Difference]: Start difference. First operand has 445 places, 1820 transitions, 81813 flow. Second operand 15 states and 2923 transitions. [2022-12-13 17:41:45,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 2100 transitions, 94128 flow [2022-12-13 17:42:06,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 2100 transitions, 94069 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-12-13 17:42:06,453 INFO L231 Difference]: Finished difference. Result has 456 places, 1910 transitions, 86741 flow [2022-12-13 17:42:06,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=81754, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1820, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=409, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=86741, PETRI_PLACES=456, PETRI_TRANSITIONS=1910} [2022-12-13 17:42:06,454 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 375 predicate places. [2022-12-13 17:42:06,454 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 1910 transitions, 86741 flow [2022-12-13 17:42:06,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 183.4) internal successors, (1834), 10 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:42:06,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:42:06,455 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] [2022-12-13 17:42:06,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 17:42:06,455 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:42:06,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:42:06,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1056246837, now seen corresponding path program 1 times [2022-12-13 17:42:06,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:42:06,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384186536] [2022-12-13 17:42:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:42:06,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:42:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:42:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:42:07,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:42:07,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384186536] [2022-12-13 17:42:07,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384186536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:42:07,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:42:07,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:42:07,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766366200] [2022-12-13 17:42:07,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:42:07,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:42:07,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:42:07,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:42:07,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:42:08,375 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 461 [2022-12-13 17:42:08,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1910 transitions, 86741 flow. Second operand has 13 states, 13 states have (on average 166.3846153846154) internal successors, (2163), 13 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:42:08,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:42:08,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 461 [2022-12-13 17:42:08,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:42:27,313 INFO L130 PetriNetUnfolder]: 8725/20179 cut-off events. [2022-12-13 17:42:27,313 INFO L131 PetriNetUnfolder]: For 1177545/1178135 co-relation queries the response was YES. [2022-12-13 17:42:27,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192564 conditions, 20179 events. 8725/20179 cut-off events. For 1177545/1178135 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 197808 event pairs, 1654 based on Foata normal form. 26/19876 useless extension candidates. Maximal degree in co-relation 192387. Up to 10564 conditions per place. [2022-12-13 17:42:27,645 INFO L137 encePairwiseOnDemand]: 444/461 looper letters, 1063 selfloop transitions, 689 changer transitions 0/2165 dead transitions. [2022-12-13 17:42:27,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 2165 transitions, 97342 flow [2022-12-13 17:42:27,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 17:42:27,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-13 17:42:27,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 4352 transitions. [2022-12-13 17:42:27,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3776138828633406 [2022-12-13 17:42:27,650 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 4352 transitions. [2022-12-13 17:42:27,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 4352 transitions. [2022-12-13 17:42:27,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:42:27,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 4352 transitions. [2022-12-13 17:42:27,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 174.08) internal successors, (4352), 25 states have internal predecessors, (4352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:42:27,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 461.0) internal successors, (11986), 26 states have internal predecessors, (11986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:42:27,661 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 461.0) internal successors, (11986), 26 states have internal predecessors, (11986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:42:27,661 INFO L175 Difference]: Start difference. First operand has 456 places, 1910 transitions, 86741 flow. Second operand 25 states and 4352 transitions. [2022-12-13 17:42:27,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 2165 transitions, 97342 flow [2022-12-13 17:42:47,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 2165 transitions, 97265 flow, removed 14 selfloop flow, removed 3 redundant places. [2022-12-13 17:42:47,555 INFO L231 Difference]: Finished difference. Result has 483 places, 2003 transitions, 93097 flow [2022-12-13 17:42:47,556 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=86664, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1910, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=599, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=93097, PETRI_PLACES=483, PETRI_TRANSITIONS=2003} [2022-12-13 17:42:47,556 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 402 predicate places. [2022-12-13 17:42:47,556 INFO L495 AbstractCegarLoop]: Abstraction has has 483 places, 2003 transitions, 93097 flow [2022-12-13 17:42:47,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.3846153846154) internal successors, (2163), 13 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:42:47,557 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:42:47,557 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] [2022-12-13 17:42:47,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 17:42:47,557 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:42:47,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:42:47,557 INFO L85 PathProgramCache]: Analyzing trace with hash -307752463, now seen corresponding path program 2 times [2022-12-13 17:42:47,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:42:47,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145564462] [2022-12-13 17:42:47,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:42:47,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:42:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:42:48,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:42:48,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:42:48,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145564462] [2022-12-13 17:42:48,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145564462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:42:48,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:42:48,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:42:48,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819779226] [2022-12-13 17:42:48,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:42:48,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:42:48,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:42:48,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:42:48,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:42:49,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 461 [2022-12-13 17:42:49,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 2003 transitions, 93097 flow. Second operand has 13 states, 13 states have (on average 166.3846153846154) internal successors, (2163), 13 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:42:49,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:42:49,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 461 [2022-12-13 17:42:49,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:43:11,308 INFO L130 PetriNetUnfolder]: 9083/20943 cut-off events. [2022-12-13 17:43:11,308 INFO L131 PetriNetUnfolder]: For 1316615/1317253 co-relation queries the response was YES. [2022-12-13 17:43:11,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211721 conditions, 20943 events. 9083/20943 cut-off events. For 1316615/1317253 co-relation queries the response was YES. Maximal size of possible extension queue 732. Compared 205259 event pairs, 1777 based on Foata normal form. 42/20650 useless extension candidates. Maximal degree in co-relation 211537. Up to 11740 conditions per place. [2022-12-13 17:43:11,675 INFO L137 encePairwiseOnDemand]: 448/461 looper letters, 1428 selfloop transitions, 482 changer transitions 0/2323 dead transitions. [2022-12-13 17:43:11,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 2323 transitions, 106883 flow [2022-12-13 17:43:11,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 17:43:11,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 17:43:11,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3189 transitions. [2022-12-13 17:43:11,679 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.38430947216196676 [2022-12-13 17:43:11,679 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3189 transitions. [2022-12-13 17:43:11,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3189 transitions. [2022-12-13 17:43:11,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:43:11,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3189 transitions. [2022-12-13 17:43:11,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 177.16666666666666) internal successors, (3189), 18 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:11,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 461.0) internal successors, (8759), 19 states have internal predecessors, (8759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:11,687 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 461.0) internal successors, (8759), 19 states have internal predecessors, (8759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:11,687 INFO L175 Difference]: Start difference. First operand has 483 places, 2003 transitions, 93097 flow. Second operand 18 states and 3189 transitions. [2022-12-13 17:43:11,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 2323 transitions, 106883 flow [2022-12-13 17:43:32,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 2323 transitions, 106048 flow, removed 15 selfloop flow, removed 13 redundant places. [2022-12-13 17:43:32,634 INFO L231 Difference]: Finished difference. Result has 496 places, 2069 transitions, 96409 flow [2022-12-13 17:43:32,635 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=92348, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2003, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=96409, PETRI_PLACES=496, PETRI_TRANSITIONS=2069} [2022-12-13 17:43:32,635 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 415 predicate places. [2022-12-13 17:43:32,635 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 2069 transitions, 96409 flow [2022-12-13 17:43:32,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.3846153846154) internal successors, (2163), 13 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:32,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:43:32,635 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:43:32,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 17:43:32,636 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:43:32,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:43:32,636 INFO L85 PathProgramCache]: Analyzing trace with hash 165206615, now seen corresponding path program 3 times [2022-12-13 17:43:32,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:43:32,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403687128] [2022-12-13 17:43:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:43:32,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:43:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:43:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:43:33,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:43:33,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403687128] [2022-12-13 17:43:33,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403687128] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:43:33,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:43:33,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:43:33,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369322059] [2022-12-13 17:43:33,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:43:33,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:43:33,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:43:33,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:43:33,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:43:34,298 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 461 [2022-12-13 17:43:34,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 2069 transitions, 96409 flow. Second operand has 13 states, 13 states have (on average 166.3846153846154) internal successors, (2163), 13 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:34,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:43:34,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 461 [2022-12-13 17:43:34,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:43:56,749 INFO L130 PetriNetUnfolder]: 9108/20991 cut-off events. [2022-12-13 17:43:56,749 INFO L131 PetriNetUnfolder]: For 1361416/1362044 co-relation queries the response was YES. [2022-12-13 17:43:57,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214514 conditions, 20991 events. 9108/20991 cut-off events. For 1361416/1362044 co-relation queries the response was YES. Maximal size of possible extension queue 733. Compared 205784 event pairs, 1701 based on Foata normal form. 43/20698 useless extension candidates. Maximal degree in co-relation 214320. Up to 10620 conditions per place. [2022-12-13 17:43:57,124 INFO L137 encePairwiseOnDemand]: 444/461 looper letters, 1078 selfloop transitions, 761 changer transitions 0/2252 dead transitions. [2022-12-13 17:43:57,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 2252 transitions, 103656 flow [2022-12-13 17:43:57,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 17:43:57,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-13 17:43:57,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4523 transitions. [2022-12-13 17:43:57,129 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.37735691640246954 [2022-12-13 17:43:57,129 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4523 transitions. [2022-12-13 17:43:57,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4523 transitions. [2022-12-13 17:43:57,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:43:57,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4523 transitions. [2022-12-13 17:43:57,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 173.96153846153845) internal successors, (4523), 26 states have internal predecessors, (4523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:57,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 461.0) internal successors, (12447), 27 states have internal predecessors, (12447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:57,142 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 461.0) internal successors, (12447), 27 states have internal predecessors, (12447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:57,142 INFO L175 Difference]: Start difference. First operand has 496 places, 2069 transitions, 96409 flow. Second operand 26 states and 4523 transitions. [2022-12-13 17:43:57,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 2252 transitions, 103656 flow [2022-12-13 17:44:18,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 2252 transitions, 103570 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-12-13 17:44:18,128 INFO L231 Difference]: Finished difference. Result has 519 places, 2085 transitions, 98568 flow [2022-12-13 17:44:18,129 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=96323, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=745, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=98568, PETRI_PLACES=519, PETRI_TRANSITIONS=2085} [2022-12-13 17:44:18,129 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 438 predicate places. [2022-12-13 17:44:18,130 INFO L495 AbstractCegarLoop]: Abstraction has has 519 places, 2085 transitions, 98568 flow [2022-12-13 17:44:18,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.3846153846154) internal successors, (2163), 13 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:44:18,130 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:44:18,130 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] [2022-12-13 17:44:18,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 17:44:18,130 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:44:18,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:44:18,130 INFO L85 PathProgramCache]: Analyzing trace with hash 871659307, now seen corresponding path program 4 times [2022-12-13 17:44:18,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:44:18,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465859811] [2022-12-13 17:44:18,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:44:18,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:44:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:44:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:44:19,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:44:19,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465859811] [2022-12-13 17:44:19,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465859811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:44:19,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:44:19,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:44:19,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347095324] [2022-12-13 17:44:19,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:44:19,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:44:19,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:44:19,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:44:19,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:44:20,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 461 [2022-12-13 17:44:20,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 2085 transitions, 98568 flow. Second operand has 13 states, 13 states have (on average 166.3846153846154) internal successors, (2163), 13 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:44:20,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:44:20,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 461 [2022-12-13 17:44:20,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:44:50,838 INFO L130 PetriNetUnfolder]: 13209/30008 cut-off events. [2022-12-13 17:44:50,838 INFO L131 PetriNetUnfolder]: For 2030835/2031695 co-relation queries the response was YES. [2022-12-13 17:44:51,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312898 conditions, 30008 events. 13209/30008 cut-off events. For 2030835/2031695 co-relation queries the response was YES. Maximal size of possible extension queue 951. Compared 308644 event pairs, 3023 based on Foata normal form. 38/29705 useless extension candidates. Maximal degree in co-relation 312700. Up to 13234 conditions per place. [2022-12-13 17:44:51,423 INFO L137 encePairwiseOnDemand]: 447/461 looper letters, 2074 selfloop transitions, 499 changer transitions 0/2986 dead transitions. [2022-12-13 17:44:51,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 2986 transitions, 140267 flow [2022-12-13 17:44:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:44:51,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 17:44:51,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2668 transitions. [2022-12-13 17:44:51,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.38582791033984093 [2022-12-13 17:44:51,426 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2668 transitions. [2022-12-13 17:44:51,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2668 transitions. [2022-12-13 17:44:51,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:44:51,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2668 transitions. [2022-12-13 17:44:51,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 177.86666666666667) internal successors, (2668), 15 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:44:51,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 461.0) internal successors, (7376), 16 states have internal predecessors, (7376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:44:51,432 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 461.0) internal successors, (7376), 16 states have internal predecessors, (7376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:44:51,433 INFO L175 Difference]: Start difference. First operand has 519 places, 2085 transitions, 98568 flow. Second operand 15 states and 2668 transitions. [2022-12-13 17:44:51,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 2986 transitions, 140267 flow [2022-12-13 17:45:26,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 2986 transitions, 139179 flow, removed 19 selfloop flow, removed 15 redundant places. [2022-12-13 17:45:26,611 INFO L231 Difference]: Finished difference. Result has 528 places, 2357 transitions, 114902 flow [2022-12-13 17:45:26,612 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=97806, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2085, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1657, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=114902, PETRI_PLACES=528, PETRI_TRANSITIONS=2357} [2022-12-13 17:45:26,613 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 447 predicate places. [2022-12-13 17:45:26,613 INFO L495 AbstractCegarLoop]: Abstraction has has 528 places, 2357 transitions, 114902 flow [2022-12-13 17:45:26,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.3846153846154) internal successors, (2163), 13 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:45:26,613 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:45:26,613 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] [2022-12-13 17:45:26,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 17:45:26,613 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:45:26,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:45:26,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1209052117, now seen corresponding path program 5 times [2022-12-13 17:45:26,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:45:26,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388368012] [2022-12-13 17:45:26,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:45:26,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:45:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:45:27,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:45:27,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:45:27,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388368012] [2022-12-13 17:45:27,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388368012] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:45:27,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:45:27,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:45:27,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293891076] [2022-12-13 17:45:27,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:45:27,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:45:27,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:45:27,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:45:27,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:45:28,506 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 461 [2022-12-13 17:45:28,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 2357 transitions, 114902 flow. Second operand has 13 states, 13 states have (on average 166.3846153846154) internal successors, (2163), 13 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:45:28,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:45:28,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 461 [2022-12-13 17:45:28,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:46:04,185 INFO L130 PetriNetUnfolder]: 13557/30747 cut-off events. [2022-12-13 17:46:04,185 INFO L131 PetriNetUnfolder]: For 2109077/2109984 co-relation queries the response was YES. [2022-12-13 17:46:04,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324013 conditions, 30747 events. 13557/30747 cut-off events. For 2109077/2109984 co-relation queries the response was YES. Maximal size of possible extension queue 978. Compared 316608 event pairs, 3153 based on Foata normal form. 44/30435 useless extension candidates. Maximal degree in co-relation 323805. Up to 18151 conditions per place. [2022-12-13 17:46:04,884 INFO L137 encePairwiseOnDemand]: 445/461 looper letters, 1642 selfloop transitions, 531 changer transitions 0/2586 dead transitions. [2022-12-13 17:46:04,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 2586 transitions, 124413 flow [2022-12-13 17:46:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:46:04,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 17:46:04,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2656 transitions. [2022-12-13 17:46:04,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3840925524222704 [2022-12-13 17:46:04,888 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2656 transitions. [2022-12-13 17:46:04,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2656 transitions. [2022-12-13 17:46:04,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:46:04,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2656 transitions. [2022-12-13 17:46:04,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 177.06666666666666) internal successors, (2656), 15 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:46:04,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 461.0) internal successors, (7376), 16 states have internal predecessors, (7376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:46:04,894 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 461.0) internal successors, (7376), 16 states have internal predecessors, (7376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:46:04,894 INFO L175 Difference]: Start difference. First operand has 528 places, 2357 transitions, 114902 flow. Second operand 15 states and 2656 transitions. [2022-12-13 17:46:04,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 2586 transitions, 124413 flow [2022-12-13 17:46:43,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 2586 transitions, 124253 flow, removed 80 selfloop flow, removed 0 redundant places. [2022-12-13 17:46:43,533 INFO L231 Difference]: Finished difference. Result has 550 places, 2411 transitions, 118157 flow [2022-12-13 17:46:43,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=114758, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=477, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1834, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=118157, PETRI_PLACES=550, PETRI_TRANSITIONS=2411} [2022-12-13 17:46:43,534 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 469 predicate places. [2022-12-13 17:46:43,534 INFO L495 AbstractCegarLoop]: Abstraction has has 550 places, 2411 transitions, 118157 flow [2022-12-13 17:46:43,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.3846153846154) internal successors, (2163), 13 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:46:43,535 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:46:43,535 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] [2022-12-13 17:46:43,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 17:46:43,535 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:46:43,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:46:43,535 INFO L85 PathProgramCache]: Analyzing trace with hash -792501963, now seen corresponding path program 6 times [2022-12-13 17:46:43,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:46:43,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212459750] [2022-12-13 17:46:43,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:46:43,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:46:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:46:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:46:44,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:46:44,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212459750] [2022-12-13 17:46:44,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212459750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:46:44,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:46:44,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:46:44,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926625516] [2022-12-13 17:46:44,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:46:44,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:46:44,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:46:44,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:46:44,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:46:45,603 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 461 [2022-12-13 17:46:45,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 2411 transitions, 118157 flow. Second operand has 13 states, 13 states have (on average 166.3846153846154) internal successors, (2163), 13 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:46:45,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:46:45,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 461 [2022-12-13 17:46:45,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand