./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c488feb98493d291286969cd9fdbd15fc14c729caece3fe94bd3c70430190936 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:31:21,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:31:21,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:31:21,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:31:21,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:31:21,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:31:21,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:31:21,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:31:21,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:31:21,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:31:21,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:31:21,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:31:21,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:31:21,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:31:21,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:31:21,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:31:21,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:31:21,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:31:21,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:31:21,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:31:21,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:31:21,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:31:21,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:31:21,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:31:21,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:31:21,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:31:21,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:31:21,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:31:21,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:31:21,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:31:21,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:31:21,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:31:21,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:31:21,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:31:21,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:31:21,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:31:21,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:31:21,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:31:21,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:31:21,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:31:21,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:31:21,715 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:31:21,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:31:21,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:31:21,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:31:21,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:31:21,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:31:21,754 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:31:21,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:31:21,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:31:21,755 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:31:21,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:31:21,756 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:31:21,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:31:21,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:31:21,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:31:21,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:31:21,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:31:21,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:31:21,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:31:21,758 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:31:21,758 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:31:21,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:31:21,759 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:31:21,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:31:21,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:31:21,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:31:21,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:31:21,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:31:21,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:31:21,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:31:21,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:31:21,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:31:21,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:31:21,762 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:31:21,762 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:31:21,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:31:21,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c488feb98493d291286969cd9fdbd15fc14c729caece3fe94bd3c70430190936 [2022-11-20 11:31:22,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:31:22,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:31:22,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:31:22,089 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:31:22,090 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:31:22,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-11-20 11:31:25,117 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:31:25,550 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:31:25,551 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-11-20 11:31:25,573 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/data/3b0f3ec7b/d3726290d8f74aeeb5d3d252e5cd47b4/FLAG6410abd38 [2022-11-20 11:31:25,589 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/data/3b0f3ec7b/d3726290d8f74aeeb5d3d252e5cd47b4 [2022-11-20 11:31:25,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:31:25,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:31:25,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:31:25,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:31:25,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:31:25,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:25" (1/1) ... [2022-11-20 11:31:25,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d07d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:25, skipping insertion in model container [2022-11-20 11:31:25,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:25" (1/1) ... [2022-11-20 11:31:25,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:31:25,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:31:26,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:26,318 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:31:26,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:26,474 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:31:26,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26 WrapperNode [2022-11-20 11:31:26,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:31:26,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:26,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:31:26,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:31:26,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (1/1) ... [2022-11-20 11:31:26,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (1/1) ... [2022-11-20 11:31:26,574 INFO L138 Inliner]: procedures = 370, calls = 30, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 228 [2022-11-20 11:31:26,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:26,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:31:26,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:31:26,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:31:26,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (1/1) ... [2022-11-20 11:31:26,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (1/1) ... [2022-11-20 11:31:26,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (1/1) ... [2022-11-20 11:31:26,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (1/1) ... [2022-11-20 11:31:26,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (1/1) ... [2022-11-20 11:31:26,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (1/1) ... [2022-11-20 11:31:26,689 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (1/1) ... [2022-11-20 11:31:26,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (1/1) ... [2022-11-20 11:31:26,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:31:26,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:31:26,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:31:26,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:31:26,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (1/1) ... [2022-11-20 11:31:26,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:31:26,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:26,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:31:26,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:31:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:31:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:31:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:31:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:31:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:31:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:31:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:31:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:31:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:31:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:31:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:31:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:31:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:31:26,792 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:31:26,984 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:31:26,986 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:31:27,674 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:31:27,684 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:31:27,691 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:31:27,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:27 BoogieIcfgContainer [2022-11-20 11:31:27,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:31:27,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:31:27,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:31:27,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:31:27,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:31:25" (1/3) ... [2022-11-20 11:31:27,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4496a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:27, skipping insertion in model container [2022-11-20 11:31:27,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:26" (2/3) ... [2022-11-20 11:31:27,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4496a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:27, skipping insertion in model container [2022-11-20 11:31:27,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:27" (3/3) ... [2022-11-20 11:31:27,722 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_11-arraylist_nr.i [2022-11-20 11:31:27,733 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:31:27,744 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:31:27,744 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-20 11:31:27,745 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:31:27,895 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:31:27,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 275 transitions, 555 flow [2022-11-20 11:31:28,128 INFO L130 PetriNetUnfolder]: 4/274 cut-off events. [2022-11-20 11:31:28,129 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:31:28,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 274 events. 4/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 148. Up to 2 conditions per place. [2022-11-20 11:31:28,137 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 275 transitions, 555 flow [2022-11-20 11:31:28,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 274 transitions, 551 flow [2022-11-20 11:31:28,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:31:28,173 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;@3d81e269, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:31:28,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-20 11:31:28,184 INFO L130 PetriNetUnfolder]: 3/49 cut-off events. [2022-11-20 11:31:28,184 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:31:28,184 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:28,185 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:28,185 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:28,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:28,193 INFO L85 PathProgramCache]: Analyzing trace with hash 51943440, now seen corresponding path program 1 times [2022-11-20 11:31:28,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:28,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150963287] [2022-11-20 11:31:28,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:28,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:28,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:28,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:28,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150963287] [2022-11-20 11:31:28,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150963287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:28,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:28,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:28,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072288522] [2022-11-20 11:31:28,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:28,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:31:28,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:28,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:31:28,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:31:28,548 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 275 [2022-11-20 11:31:28,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 274 transitions, 551 flow. Second operand has 2 states, 2 states have (on average 271.5) internal successors, (543), 2 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:28,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:28,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 275 [2022-11-20 11:31:28,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:28,644 INFO L130 PetriNetUnfolder]: 1/271 cut-off events. [2022-11-20 11:31:28,644 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:31:28,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 271 events. 1/271 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 3/253 useless extension candidates. Maximal degree in co-relation 146. Up to 2 conditions per place. [2022-11-20 11:31:28,647 INFO L137 encePairwiseOnDemand]: 272/275 looper letters, 1 selfloop transitions, 0 changer transitions 1/271 dead transitions. [2022-11-20 11:31:28,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 271 transitions, 547 flow [2022-11-20 11:31:28,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:31:28,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 11:31:28,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 546 transitions. [2022-11-20 11:31:28,671 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9927272727272727 [2022-11-20 11:31:28,672 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 546 transitions. [2022-11-20 11:31:28,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 546 transitions. [2022-11-20 11:31:28,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:28,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 546 transitions. [2022-11-20 11:31:28,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:28,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:28,698 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:28,700 INFO L175 Difference]: Start difference. First operand has 274 places, 274 transitions, 551 flow. Second operand 2 states and 546 transitions. [2022-11-20 11:31:28,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 271 transitions, 547 flow [2022-11-20 11:31:28,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 271 transitions, 546 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:31:28,715 INFO L231 Difference]: Finished difference. Result has 274 places, 270 transitions, 542 flow [2022-11-20 11:31:28,718 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=542, PETRI_PLACES=274, PETRI_TRANSITIONS=270} [2022-11-20 11:31:28,724 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 0 predicate places. [2022-11-20 11:31:28,724 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 270 transitions, 542 flow [2022-11-20 11:31:28,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 271.5) internal successors, (543), 2 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:28,725 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:28,726 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:28,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:31:28,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:28,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:28,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1013557457, now seen corresponding path program 1 times [2022-11-20 11:31:28,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:28,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255998011] [2022-11-20 11:31:28,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:28,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:28,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:28,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:28,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255998011] [2022-11-20 11:31:28,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255998011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:28,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:28,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:31:28,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54352644] [2022-11-20 11:31:28,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:28,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:28,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:28,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:28,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:28,959 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 275 [2022-11-20 11:31:28,961 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 270 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:28,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:28,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 275 [2022-11-20 11:31:28,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:29,047 INFO L130 PetriNetUnfolder]: 1/274 cut-off events. [2022-11-20 11:31:29,048 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:31:29,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 274 events. 1/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 105 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 288. Up to 9 conditions per place. [2022-11-20 11:31:29,049 INFO L137 encePairwiseOnDemand]: 272/275 looper letters, 10 selfloop transitions, 2 changer transitions 0/274 dead transitions. [2022-11-20 11:31:29,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 274 transitions, 574 flow [2022-11-20 11:31:29,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:29,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:29,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 805 transitions. [2022-11-20 11:31:29,052 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9757575757575757 [2022-11-20 11:31:29,052 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 805 transitions. [2022-11-20 11:31:29,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 805 transitions. [2022-11-20 11:31:29,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:29,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 805 transitions. [2022-11-20 11:31:29,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:29,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 275.0) internal successors, (1100), 4 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:29,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 275.0) internal successors, (1100), 4 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:29,059 INFO L175 Difference]: Start difference. First operand has 274 places, 270 transitions, 542 flow. Second operand 3 states and 805 transitions. [2022-11-20 11:31:29,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 274 transitions, 574 flow [2022-11-20 11:31:29,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 274 transitions, 574 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:31:29,065 INFO L231 Difference]: Finished difference. Result has 276 places, 271 transitions, 554 flow [2022-11-20 11:31:29,066 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=276, PETRI_TRANSITIONS=271} [2022-11-20 11:31:29,067 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 2 predicate places. [2022-11-20 11:31:29,067 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 271 transitions, 554 flow [2022-11-20 11:31:29,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:29,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:29,068 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:29,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:31:29,068 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:29,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:29,069 INFO L85 PathProgramCache]: Analyzing trace with hash -2113263664, now seen corresponding path program 1 times [2022-11-20 11:31:29,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:29,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884787709] [2022-11-20 11:31:29,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:29,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:29,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:29,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884787709] [2022-11-20 11:31:29,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884787709] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:29,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638337613] [2022-11-20 11:31:29,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:29,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:29,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:29,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:29,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:31:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:31:29,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:29,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:29,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:29,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:29,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638337613] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:29,571 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:31:29,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 11:31:29,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398795156] [2022-11-20 11:31:29,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:29,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:31:29,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:29,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:31:29,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:29,581 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 275 [2022-11-20 11:31:29,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 271 transitions, 554 flow. Second operand has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:29,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:29,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 275 [2022-11-20 11:31:29,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:29,775 INFO L130 PetriNetUnfolder]: 1/281 cut-off events. [2022-11-20 11:31:29,775 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:31:29,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 281 events. 1/281 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 2/264 useless extension candidates. Maximal degree in co-relation 309. Up to 6 conditions per place. [2022-11-20 11:31:29,777 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 11 selfloop transitions, 9 changer transitions 0/281 dead transitions. [2022-11-20 11:31:29,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 281 transitions, 616 flow [2022-11-20 11:31:29,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:31:29,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 11:31:29,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2389 transitions. [2022-11-20 11:31:29,783 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9652525252525253 [2022-11-20 11:31:29,784 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2389 transitions. [2022-11-20 11:31:29,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2389 transitions. [2022-11-20 11:31:29,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:29,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2389 transitions. [2022-11-20 11:31:29,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 265.44444444444446) internal successors, (2389), 9 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:29,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 275.0) internal successors, (2750), 10 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:29,822 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 275.0) internal successors, (2750), 10 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:29,822 INFO L175 Difference]: Start difference. First operand has 276 places, 271 transitions, 554 flow. Second operand 9 states and 2389 transitions. [2022-11-20 11:31:29,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 281 transitions, 616 flow [2022-11-20 11:31:29,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 281 transitions, 614 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:31:29,830 INFO L231 Difference]: Finished difference. Result has 286 places, 277 transitions, 602 flow [2022-11-20 11:31:29,830 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=602, PETRI_PLACES=286, PETRI_TRANSITIONS=277} [2022-11-20 11:31:29,833 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 12 predicate places. [2022-11-20 11:31:29,833 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 277 transitions, 602 flow [2022-11-20 11:31:29,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:29,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:29,836 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:29,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:30,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:30,043 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:30,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:30,043 INFO L85 PathProgramCache]: Analyzing trace with hash 328547440, now seen corresponding path program 2 times [2022-11-20 11:31:30,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:30,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268952903] [2022-11-20 11:31:30,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:30,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:30,353 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:30,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:30,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268952903] [2022-11-20 11:31:30,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268952903] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:30,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507170208] [2022-11-20 11:31:30,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:31:30,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:30,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:30,356 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:30,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:31:30,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:31:30,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:31:30,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 11:31:30,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:30,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 11:31:30,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:31:30,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 11:31:30,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:31:30,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:31:30,645 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:31:30,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-20 11:31:30,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:31:30,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:31:30,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:31:30,701 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:31:30,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-20 11:31:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 11:31:30,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:31:30,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507170208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:30,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:31:30,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-20 11:31:30,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659506551] [2022-11-20 11:31:30,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:30,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:31:30,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:30,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:31:30,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:31:30,756 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 275 [2022-11-20 11:31:30,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 277 transitions, 602 flow. Second operand has 8 states, 8 states have (on average 146.375) internal successors, (1171), 8 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:30,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:30,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 275 [2022-11-20 11:31:30,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:31,874 INFO L130 PetriNetUnfolder]: 649/2109 cut-off events. [2022-11-20 11:31:31,874 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 11:31:31,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3564 conditions, 2109 events. 649/2109 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11429 event pairs, 648 based on Foata normal form. 0/1858 useless extension candidates. Maximal degree in co-relation 3557. Up to 1405 conditions per place. [2022-11-20 11:31:31,888 INFO L137 encePairwiseOnDemand]: 256/275 looper letters, 108 selfloop transitions, 17 changer transitions 0/275 dead transitions. [2022-11-20 11:31:31,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 275 transitions, 848 flow [2022-11-20 11:31:31,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:31:31,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 11:31:31,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1432 transitions. [2022-11-20 11:31:31,894 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5785858585858585 [2022-11-20 11:31:31,895 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1432 transitions. [2022-11-20 11:31:31,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1432 transitions. [2022-11-20 11:31:31,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:31,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1432 transitions. [2022-11-20 11:31:31,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 159.11111111111111) internal successors, (1432), 9 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:31,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 275.0) internal successors, (2750), 10 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:31,906 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 275.0) internal successors, (2750), 10 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:31,906 INFO L175 Difference]: Start difference. First operand has 286 places, 277 transitions, 602 flow. Second operand 9 states and 1432 transitions. [2022-11-20 11:31:31,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 275 transitions, 848 flow [2022-11-20 11:31:31,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 275 transitions, 842 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-20 11:31:31,913 INFO L231 Difference]: Finished difference. Result has 291 places, 275 transitions, 626 flow [2022-11-20 11:31:31,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=626, PETRI_PLACES=291, PETRI_TRANSITIONS=275} [2022-11-20 11:31:31,914 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 17 predicate places. [2022-11-20 11:31:31,914 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 275 transitions, 626 flow [2022-11-20 11:31:31,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 146.375) internal successors, (1171), 8 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:31,915 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:31,915 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:31,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:32,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:32,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:32,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:32,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1442904334, now seen corresponding path program 1 times [2022-11-20 11:31:32,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:32,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415262428] [2022-11-20 11:31:32,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:32,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:32,325 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:32,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:32,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415262428] [2022-11-20 11:31:32,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415262428] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:32,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566389648] [2022-11-20 11:31:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:32,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:32,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:32,328 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:32,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:31:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:32,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:31:32,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:32,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:32,639 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:32,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566389648] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:32,640 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:31:32,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 11:31:32,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446647115] [2022-11-20 11:31:32,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:32,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:31:32,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:32,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:31:32,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:31:32,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 275 [2022-11-20 11:31:32,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 275 transitions, 626 flow. Second operand has 18 states, 18 states have (on average 265.22222222222223) internal successors, (4774), 18 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:32,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:32,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 275 [2022-11-20 11:31:32,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:32,991 INFO L130 PetriNetUnfolder]: 1/299 cut-off events. [2022-11-20 11:31:32,991 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-20 11:31:32,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 299 events. 1/299 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 4/286 useless extension candidates. Maximal degree in co-relation 404. Up to 11 conditions per place. [2022-11-20 11:31:32,993 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 19 selfloop transitions, 21 changer transitions 0/299 dead transitions. [2022-11-20 11:31:32,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 299 transitions, 806 flow [2022-11-20 11:31:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:31:32,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 11:31:33,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5567 transitions. [2022-11-20 11:31:33,005 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9639826839826839 [2022-11-20 11:31:33,006 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5567 transitions. [2022-11-20 11:31:33,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5567 transitions. [2022-11-20 11:31:33,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:33,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5567 transitions. [2022-11-20 11:31:33,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 265.0952380952381) internal successors, (5567), 21 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:33,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 275.0) internal successors, (6050), 22 states have internal predecessors, (6050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:33,037 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 275.0) internal successors, (6050), 22 states have internal predecessors, (6050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:33,038 INFO L175 Difference]: Start difference. First operand has 291 places, 275 transitions, 626 flow. Second operand 21 states and 5567 transitions. [2022-11-20 11:31:33,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 299 transitions, 806 flow [2022-11-20 11:31:33,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 299 transitions, 772 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-20 11:31:33,047 INFO L231 Difference]: Finished difference. Result has 308 places, 288 transitions, 722 flow [2022-11-20 11:31:33,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=722, PETRI_PLACES=308, PETRI_TRANSITIONS=288} [2022-11-20 11:31:33,050 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 34 predicate places. [2022-11-20 11:31:33,051 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 288 transitions, 722 flow [2022-11-20 11:31:33,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 265.22222222222223) internal successors, (4774), 18 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:33,053 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:33,053 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:33,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:33,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:33,261 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:33,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:33,261 INFO L85 PathProgramCache]: Analyzing trace with hash 465442866, now seen corresponding path program 2 times [2022-11-20 11:31:33,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:33,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194029874] [2022-11-20 11:31:33,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:33,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,713 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:33,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:33,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194029874] [2022-11-20 11:31:33,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194029874] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:33,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228910474] [2022-11-20 11:31:33,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:31:33,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:33,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:33,716 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:33,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:31:33,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:31:33,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:31:33,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 11:31:33,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:33,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 11:31:33,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 11:31:33,936 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:31:33,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-20 11:31:33,985 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:31:33,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-20 11:31:34,027 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-20 11:31:34,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:31:34,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228910474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:34,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:31:34,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-20 11:31:34,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449828336] [2022-11-20 11:31:34,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:34,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:34,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:34,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:31:34,035 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 275 [2022-11-20 11:31:34,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 288 transitions, 722 flow. Second operand has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:34,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:34,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 275 [2022-11-20 11:31:34,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:34,819 INFO L130 PetriNetUnfolder]: 649/2127 cut-off events. [2022-11-20 11:31:34,820 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-20 11:31:34,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3639 conditions, 2127 events. 649/2127 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11428 event pairs, 648 based on Foata normal form. 0/1878 useless extension candidates. Maximal degree in co-relation 3627. Up to 1406 conditions per place. [2022-11-20 11:31:34,833 INFO L137 encePairwiseOnDemand]: 263/275 looper letters, 109 selfloop transitions, 10 changer transitions 0/286 dead transitions. [2022-11-20 11:31:34,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 286 transitions, 956 flow [2022-11-20 11:31:34,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:34,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:34,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1015 transitions. [2022-11-20 11:31:34,836 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6151515151515151 [2022-11-20 11:31:34,837 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1015 transitions. [2022-11-20 11:31:34,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1015 transitions. [2022-11-20 11:31:34,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:34,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1015 transitions. [2022-11-20 11:31:34,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.16666666666666) internal successors, (1015), 6 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:34,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:34,917 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:34,917 INFO L175 Difference]: Start difference. First operand has 308 places, 288 transitions, 722 flow. Second operand 6 states and 1015 transitions. [2022-11-20 11:31:34,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 286 transitions, 956 flow [2022-11-20 11:31:34,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 286 transitions, 932 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-20 11:31:34,926 INFO L231 Difference]: Finished difference. Result has 305 places, 286 transitions, 714 flow [2022-11-20 11:31:34,927 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=714, PETRI_PLACES=305, PETRI_TRANSITIONS=286} [2022-11-20 11:31:34,928 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 31 predicate places. [2022-11-20 11:31:34,928 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 286 transitions, 714 flow [2022-11-20 11:31:34,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:34,928 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:34,929 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:34,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:35,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:35,139 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:35,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:35,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1246473534, now seen corresponding path program 1 times [2022-11-20 11:31:35,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:35,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521524170] [2022-11-20 11:31:35,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:35,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,616 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:35,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:35,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521524170] [2022-11-20 11:31:35,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521524170] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:35,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612649722] [2022-11-20 11:31:35,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:35,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:35,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:35,620 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:35,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:31:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 11:31:35,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:35,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:36,136 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:36,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612649722] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:36,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:31:36,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-20 11:31:36,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372438981] [2022-11-20 11:31:36,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:36,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:31:36,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:36,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:31:36,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:31:36,145 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 275 [2022-11-20 11:31:36,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 286 transitions, 714 flow. Second operand has 23 states, 23 states have (on average 265.39130434782606) internal successors, (6104), 23 states have internal predecessors, (6104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:36,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:36,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 275 [2022-11-20 11:31:36,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:36,528 INFO L130 PetriNetUnfolder]: 1/312 cut-off events. [2022-11-20 11:31:36,528 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-20 11:31:36,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 312 events. 1/312 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 3/300 useless extension candidates. Maximal degree in co-relation 483. Up to 16 conditions per place. [2022-11-20 11:31:36,529 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 25 selfloop transitions, 30 changer transitions 0/312 dead transitions. [2022-11-20 11:31:36,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 312 transitions, 964 flow [2022-11-20 11:31:36,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 11:31:36,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 11:31:36,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7948 transitions. [2022-11-20 11:31:36,543 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9633939393939394 [2022-11-20 11:31:36,544 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7948 transitions. [2022-11-20 11:31:36,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7948 transitions. [2022-11-20 11:31:36,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:36,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7948 transitions. [2022-11-20 11:31:36,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 264.93333333333334) internal successors, (7948), 30 states have internal predecessors, (7948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:36,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 275.0) internal successors, (8525), 31 states have internal predecessors, (8525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:36,584 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 275.0) internal successors, (8525), 31 states have internal predecessors, (8525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:36,584 INFO L175 Difference]: Start difference. First operand has 305 places, 286 transitions, 714 flow. Second operand 30 states and 7948 transitions. [2022-11-20 11:31:36,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 312 transitions, 964 flow [2022-11-20 11:31:36,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 312 transitions, 944 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:31:36,592 INFO L231 Difference]: Finished difference. Result has 333 places, 296 transitions, 846 flow [2022-11-20 11:31:36,592 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=846, PETRI_PLACES=333, PETRI_TRANSITIONS=296} [2022-11-20 11:31:36,593 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 59 predicate places. [2022-11-20 11:31:36,593 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 296 transitions, 846 flow [2022-11-20 11:31:36,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 265.39130434782606) internal successors, (6104), 23 states have internal predecessors, (6104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:36,595 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:36,595 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:36,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:36,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e779c7f8-d92a-498f-bb13-c3c074cf25a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 11:31:36,801 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:36,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:36,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1267463069, now seen corresponding path program 2 times [2022-11-20 11:31:36,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:36,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259630999] [2022-11-20 11:31:36,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:36,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:37,438 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:31:37,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:37,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259630999] [2022-11-20 11:31:37,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259630999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:37,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:37,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:37,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962594408] [2022-11-20 11:31:37,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:37,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:37,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:37,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:37,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:37,442 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 275 [2022-11-20 11:31:37,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 296 transitions, 846 flow. Second operand has 6 states, 6 states have (on average 153.66666666666666) internal successors, (922), 6 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:37,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:37,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 275 [2022-11-20 11:31:37,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:38,205 INFO L130 PetriNetUnfolder]: 778/2460 cut-off events. [2022-11-20 11:31:38,205 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-11-20 11:31:38,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4296 conditions, 2460 events. 778/2460 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13635 event pairs, 777 based on Foata normal form. 0/2188 useless extension candidates. Maximal degree in co-relation 4280. Up to 1667 conditions per place. [2022-11-20 11:31:38,222 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 112 selfloop transitions, 5 changer transitions 0/295 dead transitions. [2022-11-20 11:31:38,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 295 transitions, 1078 flow [2022-11-20 11:31:38,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:38,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1018 transitions. [2022-11-20 11:31:38,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.616969696969697 [2022-11-20 11:31:38,225 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1018 transitions. [2022-11-20 11:31:38,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1018 transitions. [2022-11-20 11:31:38,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:38,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1018 transitions. [2022-11-20 11:31:38,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:38,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:38,232 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:38,232 INFO L175 Difference]: Start difference. First operand has 333 places, 296 transitions, 846 flow. Second operand 6 states and 1018 transitions. [2022-11-20 11:31:38,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 295 transitions, 1078 flow [2022-11-20 11:31:38,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 295 transitions, 1032 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-20 11:31:38,241 INFO L231 Difference]: Finished difference. Result has 319 places, 295 transitions, 808 flow [2022-11-20 11:31:38,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=808, PETRI_PLACES=319, PETRI_TRANSITIONS=295} [2022-11-20 11:31:38,244 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 45 predicate places. [2022-11-20 11:31:38,244 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 295 transitions, 808 flow [2022-11-20 11:31:38,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 153.66666666666666) internal successors, (922), 6 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:38,245 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:38,245 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:38,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:31:38,246 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:38,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:38,246 INFO L85 PathProgramCache]: Analyzing trace with hash 803274395, now seen corresponding path program 1 times [2022-11-20 11:31:38,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:38,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992909645] [2022-11-20 11:31:38,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:38,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:39,088 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:31:39,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:39,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992909645] [2022-11-20 11:31:39,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992909645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:39,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:39,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:39,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550773666] [2022-11-20 11:31:39,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:39,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:39,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:39,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:39,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:39,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 275 [2022-11-20 11:31:39,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 295 transitions, 808 flow. Second operand has 6 states, 6 states have (on average 158.16666666666666) internal successors, (949), 6 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:39,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:39,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 275 [2022-11-20 11:31:39,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:40,865 INFO L130 PetriNetUnfolder]: 1388/4185 cut-off events. [2022-11-20 11:31:40,865 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-20 11:31:40,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7276 conditions, 4185 events. 1388/4185 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28781 event pairs, 95 based on Foata normal form. 0/3734 useless extension candidates. Maximal degree in co-relation 7259. Up to 1834 conditions per place. [2022-11-20 11:31:40,891 INFO L137 encePairwiseOnDemand]: 247/275 looper letters, 205 selfloop transitions, 74 changer transitions 0/459 dead transitions. [2022-11-20 11:31:40,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 459 transitions, 1694 flow [2022-11-20 11:31:40,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:40,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:40,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1193 transitions. [2022-11-20 11:31:40,895 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.723030303030303 [2022-11-20 11:31:40,895 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1193 transitions. [2022-11-20 11:31:40,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1193 transitions. [2022-11-20 11:31:40,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:40,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1193 transitions. [2022-11-20 11:31:40,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.83333333333334) internal successors, (1193), 6 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:40,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:40,902 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:40,902 INFO L175 Difference]: Start difference. First operand has 319 places, 295 transitions, 808 flow. Second operand 6 states and 1193 transitions. [2022-11-20 11:31:40,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 459 transitions, 1694 flow [2022-11-20 11:31:40,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 459 transitions, 1684 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:31:40,912 INFO L231 Difference]: Finished difference. Result has 323 places, 362 transitions, 1270 flow [2022-11-20 11:31:40,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1270, PETRI_PLACES=323, PETRI_TRANSITIONS=362} [2022-11-20 11:31:40,914 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 49 predicate places. [2022-11-20 11:31:40,914 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 362 transitions, 1270 flow [2022-11-20 11:31:40,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 158.16666666666666) internal successors, (949), 6 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:40,915 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:40,915 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:40,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:31:40,916 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:40,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:40,916 INFO L85 PathProgramCache]: Analyzing trace with hash -416009505, now seen corresponding path program 1 times [2022-11-20 11:31:40,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:40,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959517468] [2022-11-20 11:31:40,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:40,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,668 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:31:41,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:41,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959517468] [2022-11-20 11:31:41,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959517468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:41,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:41,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:41,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611188694] [2022-11-20 11:31:41,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:41,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:41,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:41,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:41,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:41,673 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 275 [2022-11-20 11:31:41,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 362 transitions, 1270 flow. Second operand has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:41,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:41,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 275 [2022-11-20 11:31:41,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:42,892 INFO L130 PetriNetUnfolder]: 1207/3988 cut-off events. [2022-11-20 11:31:42,893 INFO L131 PetriNetUnfolder]: For 1352/1456 co-relation queries the response was YES. [2022-11-20 11:31:42,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8095 conditions, 3988 events. 1207/3988 cut-off events. For 1352/1456 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 26913 event pairs, 792 based on Foata normal form. 0/3586 useless extension candidates. Maximal degree in co-relation 8074. Up to 2566 conditions per place. [2022-11-20 11:31:42,919 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 169 selfloop transitions, 5 changer transitions 0/361 dead transitions. [2022-11-20 11:31:42,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 361 transitions, 1616 flow [2022-11-20 11:31:42,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:42,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1061 transitions. [2022-11-20 11:31:42,922 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6430303030303031 [2022-11-20 11:31:42,922 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1061 transitions. [2022-11-20 11:31:42,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1061 transitions. [2022-11-20 11:31:42,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:42,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1061 transitions. [2022-11-20 11:31:42,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.83333333333334) internal successors, (1061), 6 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:42,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:42,930 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:42,930 INFO L175 Difference]: Start difference. First operand has 323 places, 362 transitions, 1270 flow. Second operand 6 states and 1061 transitions. [2022-11-20 11:31:42,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 361 transitions, 1616 flow [2022-11-20 11:31:42,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 361 transitions, 1616 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:31:42,941 INFO L231 Difference]: Finished difference. Result has 327 places, 361 transitions, 1278 flow [2022-11-20 11:31:42,943 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1278, PETRI_PLACES=327, PETRI_TRANSITIONS=361} [2022-11-20 11:31:42,943 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 53 predicate places. [2022-11-20 11:31:42,943 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 361 transitions, 1278 flow [2022-11-20 11:31:42,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:42,944 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:42,944 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:42,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:31:42,945 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:42,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:42,945 INFO L85 PathProgramCache]: Analyzing trace with hash 544626606, now seen corresponding path program 1 times [2022-11-20 11:31:42,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:42,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75622159] [2022-11-20 11:31:42,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:42,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:43,794 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:31:43,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:43,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75622159] [2022-11-20 11:31:43,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75622159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:43,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:43,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:43,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026907824] [2022-11-20 11:31:43,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:43,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:43,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:43,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:43,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:43,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 275 [2022-11-20 11:31:43,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 361 transitions, 1278 flow. Second operand has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:43,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:43,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 275 [2022-11-20 11:31:43,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:45,222 INFO L130 PetriNetUnfolder]: 1207/3987 cut-off events. [2022-11-20 11:31:45,223 INFO L131 PetriNetUnfolder]: For 1352/1456 co-relation queries the response was YES. [2022-11-20 11:31:45,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8101 conditions, 3987 events. 1207/3987 cut-off events. For 1352/1456 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 26932 event pairs, 792 based on Foata normal form. 0/3586 useless extension candidates. Maximal degree in co-relation 8079. Up to 2568 conditions per place. [2022-11-20 11:31:45,264 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 170 selfloop transitions, 5 changer transitions 0/360 dead transitions. [2022-11-20 11:31:45,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 360 transitions, 1626 flow [2022-11-20 11:31:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:45,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:45,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1050 transitions. [2022-11-20 11:31:45,270 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2022-11-20 11:31:45,270 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1050 transitions. [2022-11-20 11:31:45,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1050 transitions. [2022-11-20 11:31:45,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:45,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1050 transitions. [2022-11-20 11:31:45,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:45,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:45,278 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:45,278 INFO L175 Difference]: Start difference. First operand has 327 places, 361 transitions, 1278 flow. Second operand 6 states and 1050 transitions. [2022-11-20 11:31:45,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 360 transitions, 1626 flow [2022-11-20 11:31:45,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 360 transitions, 1616 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:31:45,290 INFO L231 Difference]: Finished difference. Result has 326 places, 360 transitions, 1276 flow [2022-11-20 11:31:45,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1266, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=326, PETRI_TRANSITIONS=360} [2022-11-20 11:31:45,291 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 52 predicate places. [2022-11-20 11:31:45,291 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 360 transitions, 1276 flow [2022-11-20 11:31:45,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:45,292 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:45,292 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:45,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:31:45,293 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:45,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:45,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1245162512, now seen corresponding path program 1 times [2022-11-20 11:31:45,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:45,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463038721] [2022-11-20 11:31:45,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:45,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:46,063 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:31:46,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:46,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463038721] [2022-11-20 11:31:46,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463038721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:46,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:46,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:46,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026843962] [2022-11-20 11:31:46,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:46,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:46,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:46,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:46,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:46,067 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 275 [2022-11-20 11:31:46,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 360 transitions, 1276 flow. Second operand has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:46,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:46,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 275 [2022-11-20 11:31:46,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:47,164 INFO L130 PetriNetUnfolder]: 1207/3986 cut-off events. [2022-11-20 11:31:47,164 INFO L131 PetriNetUnfolder]: For 1355/1459 co-relation queries the response was YES. [2022-11-20 11:31:47,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8099 conditions, 3986 events. 1207/3986 cut-off events. For 1355/1459 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 26910 event pairs, 792 based on Foata normal form. 0/3586 useless extension candidates. Maximal degree in co-relation 8077. Up to 2567 conditions per place. [2022-11-20 11:31:47,196 INFO L137 encePairwiseOnDemand]: 269/275 looper letters, 169 selfloop transitions, 5 changer transitions 0/359 dead transitions. [2022-11-20 11:31:47,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 359 transitions, 1622 flow [2022-11-20 11:31:47,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:47,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:47,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1049 transitions. [2022-11-20 11:31:47,199 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6357575757575757 [2022-11-20 11:31:47,199 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1049 transitions. [2022-11-20 11:31:47,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1049 transitions. [2022-11-20 11:31:47,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:47,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1049 transitions. [2022-11-20 11:31:47,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.83333333333334) internal successors, (1049), 6 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:47,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:47,209 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:47,209 INFO L175 Difference]: Start difference. First operand has 326 places, 360 transitions, 1276 flow. Second operand 6 states and 1049 transitions. [2022-11-20 11:31:47,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 359 transitions, 1622 flow [2022-11-20 11:31:47,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 359 transitions, 1612 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:31:47,222 INFO L231 Difference]: Finished difference. Result has 325 places, 359 transitions, 1274 flow [2022-11-20 11:31:47,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1264, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1274, PETRI_PLACES=325, PETRI_TRANSITIONS=359} [2022-11-20 11:31:47,223 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 51 predicate places. [2022-11-20 11:31:47,224 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 359 transitions, 1274 flow [2022-11-20 11:31:47,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:47,224 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:47,225 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:47,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:31:47,225 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:47,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:47,226 INFO L85 PathProgramCache]: Analyzing trace with hash 597428371, now seen corresponding path program 1 times [2022-11-20 11:31:47,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:47,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198957687] [2022-11-20 11:31:47,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:47,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:48,186 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:31:48,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:48,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198957687] [2022-11-20 11:31:48,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198957687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:48,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:48,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:48,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460832155] [2022-11-20 11:31:48,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:48,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:48,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:48,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:48,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:48,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 275 [2022-11-20 11:31:48,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 359 transitions, 1274 flow. Second operand has 6 states, 6 states have (on average 168.83333333333334) internal successors, (1013), 6 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:48,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 275 [2022-11-20 11:31:48,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:50,287 INFO L130 PetriNetUnfolder]: 1524/4612 cut-off events. [2022-11-20 11:31:50,287 INFO L131 PetriNetUnfolder]: For 1496/1616 co-relation queries the response was YES. [2022-11-20 11:31:50,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9516 conditions, 4612 events. 1524/4612 cut-off events. For 1496/1616 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 31586 event pairs, 624 based on Foata normal form. 16/4207 useless extension candidates. Maximal degree in co-relation 9494. Up to 2609 conditions per place. [2022-11-20 11:31:50,325 INFO L137 encePairwiseOnDemand]: 252/275 looper letters, 251 selfloop transitions, 130 changer transitions 0/568 dead transitions. [2022-11-20 11:31:50,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 568 transitions, 2830 flow [2022-11-20 11:31:50,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:50,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:50,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1208 transitions. [2022-11-20 11:31:50,328 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7321212121212122 [2022-11-20 11:31:50,329 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1208 transitions. [2022-11-20 11:31:50,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1208 transitions. [2022-11-20 11:31:50,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:50,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1208 transitions. [2022-11-20 11:31:50,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.33333333333334) internal successors, (1208), 6 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,336 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,336 INFO L175 Difference]: Start difference. First operand has 325 places, 359 transitions, 1274 flow. Second operand 6 states and 1208 transitions. [2022-11-20 11:31:50,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 568 transitions, 2830 flow [2022-11-20 11:31:50,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 568 transitions, 2820 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:31:50,355 INFO L231 Difference]: Finished difference. Result has 330 places, 488 transitions, 2492 flow [2022-11-20 11:31:50,356 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1264, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2492, PETRI_PLACES=330, PETRI_TRANSITIONS=488} [2022-11-20 11:31:50,357 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 56 predicate places. [2022-11-20 11:31:50,357 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 488 transitions, 2492 flow [2022-11-20 11:31:50,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.83333333333334) internal successors, (1013), 6 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,358 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:50,358 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:50,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:31:50,359 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:50,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:50,359 INFO L85 PathProgramCache]: Analyzing trace with hash 430727879, now seen corresponding path program 1 times [2022-11-20 11:31:50,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:50,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351975855] [2022-11-20 11:31:50,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:50,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:51,159 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:31:51,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:51,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351975855] [2022-11-20 11:31:51,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351975855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:51,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:51,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:51,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509075016] [2022-11-20 11:31:51,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:51,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:51,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:51,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:51,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:51,162 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 275 [2022-11-20 11:31:51,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 488 transitions, 2492 flow. Second operand has 6 states, 6 states have (on average 169.83333333333334) internal successors, (1019), 6 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:51,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:51,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 275 [2022-11-20 11:31:51,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:53,279 INFO L130 PetriNetUnfolder]: 1637/5413 cut-off events. [2022-11-20 11:31:53,280 INFO L131 PetriNetUnfolder]: For 3919/4204 co-relation queries the response was YES. [2022-11-20 11:31:53,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12541 conditions, 5413 events. 1637/5413 cut-off events. For 3919/4204 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40641 event pairs, 508 based on Foata normal form. 8/5049 useless extension candidates. Maximal degree in co-relation 12515. Up to 2869 conditions per place. [2022-11-20 11:31:53,326 INFO L137 encePairwiseOnDemand]: 253/275 looper letters, 375 selfloop transitions, 129 changer transitions 5/696 dead transitions. [2022-11-20 11:31:53,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 696 transitions, 4548 flow [2022-11-20 11:31:53,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:53,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:53,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1207 transitions. [2022-11-20 11:31:53,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7315151515151516 [2022-11-20 11:31:53,332 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1207 transitions. [2022-11-20 11:31:53,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1207 transitions. [2022-11-20 11:31:53,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:53,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1207 transitions. [2022-11-20 11:31:53,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.16666666666666) internal successors, (1207), 6 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:53,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:53,339 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:53,340 INFO L175 Difference]: Start difference. First operand has 330 places, 488 transitions, 2492 flow. Second operand 6 states and 1207 transitions. [2022-11-20 11:31:53,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 696 transitions, 4548 flow [2022-11-20 11:31:53,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 696 transitions, 4548 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:31:53,370 INFO L231 Difference]: Finished difference. Result has 340 places, 615 transitions, 3958 flow [2022-11-20 11:31:53,371 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=2492, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3958, PETRI_PLACES=340, PETRI_TRANSITIONS=615} [2022-11-20 11:31:53,371 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 66 predicate places. [2022-11-20 11:31:53,372 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 615 transitions, 3958 flow [2022-11-20 11:31:53,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.83333333333334) internal successors, (1019), 6 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:53,372 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:53,373 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:53,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:31:53,373 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:53,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:53,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1737300221, now seen corresponding path program 1 times [2022-11-20 11:31:53,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:53,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288638788] [2022-11-20 11:31:53,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:53,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:31:54,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:54,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288638788] [2022-11-20 11:31:54,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288638788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:54,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:54,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:54,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434327171] [2022-11-20 11:31:54,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:54,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:54,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:54,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:54,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:54,356 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 275 [2022-11-20 11:31:54,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 615 transitions, 3958 flow. Second operand has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:54,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:54,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 275 [2022-11-20 11:31:54,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:56,000 INFO L130 PetriNetUnfolder]: 1747/5571 cut-off events. [2022-11-20 11:31:56,000 INFO L131 PetriNetUnfolder]: For 5721/5749 co-relation queries the response was YES. [2022-11-20 11:31:56,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14908 conditions, 5571 events. 1747/5571 cut-off events. For 5721/5749 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 40932 event pairs, 657 based on Foata normal form. 0/5266 useless extension candidates. Maximal degree in co-relation 14877. Up to 3519 conditions per place. [2022-11-20 11:31:56,045 INFO L137 encePairwiseOnDemand]: 256/275 looper letters, 445 selfloop transitions, 84 changer transitions 0/713 dead transitions. [2022-11-20 11:31:56,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 713 transitions, 5530 flow [2022-11-20 11:31:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:56,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:56,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1121 transitions. [2022-11-20 11:31:56,048 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6793939393939394 [2022-11-20 11:31:56,049 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1121 transitions. [2022-11-20 11:31:56,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1121 transitions. [2022-11-20 11:31:56,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:56,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1121 transitions. [2022-11-20 11:31:56,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.83333333333334) internal successors, (1121), 6 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:56,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:56,055 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:56,055 INFO L175 Difference]: Start difference. First operand has 340 places, 615 transitions, 3958 flow. Second operand 6 states and 1121 transitions. [2022-11-20 11:31:56,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 713 transitions, 5530 flow [2022-11-20 11:31:56,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 713 transitions, 5276 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-20 11:31:56,093 INFO L231 Difference]: Finished difference. Result has 349 places, 686 transitions, 4494 flow [2022-11-20 11:31:56,094 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=3710, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4494, PETRI_PLACES=349, PETRI_TRANSITIONS=686} [2022-11-20 11:31:56,094 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 75 predicate places. [2022-11-20 11:31:56,094 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 686 transitions, 4494 flow [2022-11-20 11:31:56,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:56,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:56,095 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:56,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:31:56,096 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:31:56,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:56,096 INFO L85 PathProgramCache]: Analyzing trace with hash 871846216, now seen corresponding path program 1 times [2022-11-20 11:31:56,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:56,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266857401] [2022-11-20 11:31:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:56,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:31:58,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:58,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266857401] [2022-11-20 11:31:58,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266857401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:58,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:58,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-20 11:31:58,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137136745] [2022-11-20 11:31:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:58,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 11:31:58,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:58,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 11:31:58,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:31:58,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 275 [2022-11-20 11:31:58,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 686 transitions, 4494 flow. Second operand has 21 states, 21 states have (on average 115.47619047619048) internal successors, (2425), 21 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:58,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:58,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 275 [2022-11-20 11:31:58,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:06,189 INFO L130 PetriNetUnfolder]: 2645/7291 cut-off events. [2022-11-20 11:32:06,189 INFO L131 PetriNetUnfolder]: For 9035/9048 co-relation queries the response was YES. [2022-11-20 11:32:06,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21964 conditions, 7291 events. 2645/7291 cut-off events. For 9035/9048 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 54518 event pairs, 408 based on Foata normal form. 44/7012 useless extension candidates. Maximal degree in co-relation 21928. Up to 2908 conditions per place. [2022-11-20 11:32:06,237 INFO L137 encePairwiseOnDemand]: 236/275 looper letters, 783 selfloop transitions, 208 changer transitions 8/1139 dead transitions. [2022-11-20 11:32:06,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 1139 transitions, 9012 flow [2022-11-20 11:32:06,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-20 11:32:06,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-20 11:32:06,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 5199 transitions. [2022-11-20 11:32:06,246 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4501298701298701 [2022-11-20 11:32:06,247 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 5199 transitions. [2022-11-20 11:32:06,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 5199 transitions. [2022-11-20 11:32:06,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:06,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 5199 transitions. [2022-11-20 11:32:06,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 123.78571428571429) internal successors, (5199), 42 states have internal predecessors, (5199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:06,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 275.0) internal successors, (11825), 43 states have internal predecessors, (11825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:06,276 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 275.0) internal successors, (11825), 43 states have internal predecessors, (11825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:06,277 INFO L175 Difference]: Start difference. First operand has 349 places, 686 transitions, 4494 flow. Second operand 42 states and 5199 transitions. [2022-11-20 11:32:06,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 1139 transitions, 9012 flow [2022-11-20 11:32:06,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 1139 transitions, 8940 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-20 11:32:06,364 INFO L231 Difference]: Finished difference. Result has 399 places, 759 transitions, 5654 flow [2022-11-20 11:32:06,364 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=4440, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=5654, PETRI_PLACES=399, PETRI_TRANSITIONS=759} [2022-11-20 11:32:06,365 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 125 predicate places. [2022-11-20 11:32:06,365 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 759 transitions, 5654 flow [2022-11-20 11:32:06,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 115.47619047619048) internal successors, (2425), 21 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:06,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:06,367 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:32:06,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:32:06,367 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:32:06,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:06,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1165154200, now seen corresponding path program 2 times [2022-11-20 11:32:06,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:06,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048431328] [2022-11-20 11:32:06,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:06,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:32:08,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:08,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048431328] [2022-11-20 11:32:08,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048431328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:08,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:08,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 11:32:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769761387] [2022-11-20 11:32:08,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:08,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:32:08,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:08,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:32:08,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:32:08,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 275 [2022-11-20 11:32:08,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 759 transitions, 5654 flow. Second operand has 16 states, 16 states have (on average 128.375) internal successors, (2054), 16 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:08,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:08,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 275 [2022-11-20 11:32:08,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:14,691 INFO L130 PetriNetUnfolder]: 3659/10570 cut-off events. [2022-11-20 11:32:14,691 INFO L131 PetriNetUnfolder]: For 18585/18718 co-relation queries the response was YES. [2022-11-20 11:32:14,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33373 conditions, 10570 events. 3659/10570 cut-off events. For 18585/18718 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 90905 event pairs, 909 based on Foata normal form. 131/10239 useless extension candidates. Maximal degree in co-relation 33327. Up to 3184 conditions per place. [2022-11-20 11:32:14,879 INFO L137 encePairwiseOnDemand]: 236/275 looper letters, 989 selfloop transitions, 315 changer transitions 8/1464 dead transitions. [2022-11-20 11:32:14,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 1464 transitions, 12845 flow [2022-11-20 11:32:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 11:32:14,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-11-20 11:32:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3464 transitions. [2022-11-20 11:32:14,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5476679841897233 [2022-11-20 11:32:14,887 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3464 transitions. [2022-11-20 11:32:14,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3464 transitions. [2022-11-20 11:32:14,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:14,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3464 transitions. [2022-11-20 11:32:14,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 150.6086956521739) internal successors, (3464), 23 states have internal predecessors, (3464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:14,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:14,906 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:14,906 INFO L175 Difference]: Start difference. First operand has 399 places, 759 transitions, 5654 flow. Second operand 23 states and 3464 transitions. [2022-11-20 11:32:14,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 1464 transitions, 12845 flow [2022-11-20 11:32:15,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 1464 transitions, 12735 flow, removed 5 selfloop flow, removed 20 redundant places. [2022-11-20 11:32:15,054 INFO L231 Difference]: Finished difference. Result has 414 places, 893 transitions, 8281 flow [2022-11-20 11:32:15,055 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=5580, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=181, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=8281, PETRI_PLACES=414, PETRI_TRANSITIONS=893} [2022-11-20 11:32:15,056 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 140 predicate places. [2022-11-20 11:32:15,056 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 893 transitions, 8281 flow [2022-11-20 11:32:15,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 128.375) internal successors, (2054), 16 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:15,057 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:15,057 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:32:15,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:32:15,058 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:32:15,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:15,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1771955896, now seen corresponding path program 3 times [2022-11-20 11:32:15,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:15,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546224616] [2022-11-20 11:32:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:15,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,015 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:32:18,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:18,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546224616] [2022-11-20 11:32:18,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546224616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:18,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:18,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 11:32:18,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211988216] [2022-11-20 11:32:18,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:18,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 11:32:18,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:18,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 11:32:18,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2022-11-20 11:32:18,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 275 [2022-11-20 11:32:18,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 893 transitions, 8281 flow. Second operand has 25 states, 25 states have (on average 110.92) internal successors, (2773), 25 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:18,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:18,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 275 [2022-11-20 11:32:18,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:27,932 INFO L130 PetriNetUnfolder]: 5519/15319 cut-off events. [2022-11-20 11:32:27,933 INFO L131 PetriNetUnfolder]: For 35584/35619 co-relation queries the response was YES. [2022-11-20 11:32:28,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50906 conditions, 15319 events. 5519/15319 cut-off events. For 35584/35619 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 140698 event pairs, 1593 based on Foata normal form. 56/14742 useless extension candidates. Maximal degree in co-relation 50847. Up to 4932 conditions per place. [2022-11-20 11:32:28,419 INFO L137 encePairwiseOnDemand]: 225/275 looper letters, 1148 selfloop transitions, 379 changer transitions 8/1671 dead transitions. [2022-11-20 11:32:28,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 1671 transitions, 16768 flow [2022-11-20 11:32:28,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-20 11:32:28,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-20 11:32:28,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 5214 transitions. [2022-11-20 11:32:28,428 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4514285714285714 [2022-11-20 11:32:28,428 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 5214 transitions. [2022-11-20 11:32:28,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 5214 transitions. [2022-11-20 11:32:28,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:28,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 5214 transitions. [2022-11-20 11:32:28,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 124.14285714285714) internal successors, (5214), 42 states have internal predecessors, (5214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:28,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 275.0) internal successors, (11825), 43 states have internal predecessors, (11825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:28,456 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 275.0) internal successors, (11825), 43 states have internal predecessors, (11825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:28,456 INFO L175 Difference]: Start difference. First operand has 414 places, 893 transitions, 8281 flow. Second operand 42 states and 5214 transitions. [2022-11-20 11:32:28,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 1671 transitions, 16768 flow [2022-11-20 11:32:28,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 1671 transitions, 16674 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-20 11:32:28,721 INFO L231 Difference]: Finished difference. Result has 465 places, 1039 transitions, 11745 flow [2022-11-20 11:32:28,722 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=8191, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=893, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=11745, PETRI_PLACES=465, PETRI_TRANSITIONS=1039} [2022-11-20 11:32:28,723 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 191 predicate places. [2022-11-20 11:32:28,723 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 1039 transitions, 11745 flow [2022-11-20 11:32:28,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 110.92) internal successors, (2773), 25 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:28,724 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:28,724 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:32:28,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:32:28,724 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:32:28,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:28,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1505408528, now seen corresponding path program 4 times [2022-11-20 11:32:28,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:28,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152408971] [2022-11-20 11:32:28,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:28,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:32:31,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:31,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152408971] [2022-11-20 11:32:31,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152408971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:31,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:31,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 11:32:31,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935925137] [2022-11-20 11:32:31,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:31,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:32:31,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:31,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:32:31,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:32:31,382 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 275 [2022-11-20 11:32:31,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 1039 transitions, 11745 flow. Second operand has 16 states, 16 states have (on average 128.375) internal successors, (2054), 16 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:31,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:31,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 275 [2022-11-20 11:32:31,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:42,875 INFO L130 PetriNetUnfolder]: 8197/23494 cut-off events. [2022-11-20 11:32:42,875 INFO L131 PetriNetUnfolder]: For 71173/71542 co-relation queries the response was YES. [2022-11-20 11:32:43,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81307 conditions, 23494 events. 8197/23494 cut-off events. For 71173/71542 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 243995 event pairs, 1895 based on Foata normal form. 263/22778 useless extension candidates. Maximal degree in co-relation 81231. Up to 6785 conditions per place. [2022-11-20 11:32:43,237 INFO L137 encePairwiseOnDemand]: 239/275 looper letters, 1160 selfloop transitions, 573 changer transitions 5/1890 dead transitions. [2022-11-20 11:32:43,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 1890 transitions, 23141 flow [2022-11-20 11:32:43,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 11:32:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 11:32:43,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4055 transitions. [2022-11-20 11:32:43,244 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5266233766233767 [2022-11-20 11:32:43,244 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4055 transitions. [2022-11-20 11:32:43,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4055 transitions. [2022-11-20 11:32:43,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:43,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4055 transitions. [2022-11-20 11:32:43,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 144.82142857142858) internal successors, (4055), 28 states have internal predecessors, (4055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:43,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 275.0) internal successors, (7975), 29 states have internal predecessors, (7975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:43,264 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 275.0) internal successors, (7975), 29 states have internal predecessors, (7975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:43,264 INFO L175 Difference]: Start difference. First operand has 465 places, 1039 transitions, 11745 flow. Second operand 28 states and 4055 transitions. [2022-11-20 11:32:43,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 1890 transitions, 23141 flow [2022-11-20 11:32:44,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 1890 transitions, 22963 flow, removed 32 selfloop flow, removed 22 redundant places. [2022-11-20 11:32:44,141 INFO L231 Difference]: Finished difference. Result has 484 places, 1290 transitions, 17766 flow [2022-11-20 11:32:44,142 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=11597, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=327, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=17766, PETRI_PLACES=484, PETRI_TRANSITIONS=1290} [2022-11-20 11:32:44,143 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 210 predicate places. [2022-11-20 11:32:44,143 INFO L495 AbstractCegarLoop]: Abstraction has has 484 places, 1290 transitions, 17766 flow [2022-11-20 11:32:44,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 128.375) internal successors, (2054), 16 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:44,144 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:44,144 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:32:44,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:32:44,144 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:32:44,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:44,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1204123992, now seen corresponding path program 5 times [2022-11-20 11:32:44,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:44,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773287097] [2022-11-20 11:32:44,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:44,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:32:46,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:46,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773287097] [2022-11-20 11:32:46,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773287097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:46,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:46,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:32:46,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440151018] [2022-11-20 11:32:46,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:46,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:32:46,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:46,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:32:46,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:32:46,696 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 275 [2022-11-20 11:32:46,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 1290 transitions, 17766 flow. Second operand has 13 states, 13 states have (on average 140.69230769230768) internal successors, (1829), 13 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:46,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:46,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 275 [2022-11-20 11:32:46,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:05,001 INFO L130 PetriNetUnfolder]: 10490/30001 cut-off events. [2022-11-20 11:33:05,002 INFO L131 PetriNetUnfolder]: For 112377/113062 co-relation queries the response was YES. [2022-11-20 11:33:05,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108758 conditions, 30001 events. 10490/30001 cut-off events. For 112377/113062 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 326390 event pairs, 2490 based on Foata normal form. 476/29257 useless extension candidates. Maximal degree in co-relation 108668. Up to 10981 conditions per place. [2022-11-20 11:33:05,517 INFO L137 encePairwiseOnDemand]: 241/275 looper letters, 1302 selfloop transitions, 619 changer transitions 7/2092 dead transitions. [2022-11-20 11:33:05,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 2092 transitions, 28973 flow [2022-11-20 11:33:05,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 11:33:05,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-20 11:33:05,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4161 transitions. [2022-11-20 11:33:05,523 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5819580419580419 [2022-11-20 11:33:05,523 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4161 transitions. [2022-11-20 11:33:05,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4161 transitions. [2022-11-20 11:33:05,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:05,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4161 transitions. [2022-11-20 11:33:05,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 160.03846153846155) internal successors, (4161), 26 states have internal predecessors, (4161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:05,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 275.0) internal successors, (7425), 27 states have internal predecessors, (7425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:05,540 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 275.0) internal successors, (7425), 27 states have internal predecessors, (7425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:05,541 INFO L175 Difference]: Start difference. First operand has 484 places, 1290 transitions, 17766 flow. Second operand 26 states and 4161 transitions. [2022-11-20 11:33:05,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 2092 transitions, 28973 flow [2022-11-20 11:33:06,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 2092 transitions, 28704 flow, removed 130 selfloop flow, removed 4 redundant places. [2022-11-20 11:33:06,658 INFO L231 Difference]: Finished difference. Result has 523 places, 1491 transitions, 23570 flow [2022-11-20 11:33:06,660 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=17531, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=422, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=714, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=23570, PETRI_PLACES=523, PETRI_TRANSITIONS=1491} [2022-11-20 11:33:06,660 INFO L288 CegarLoopForPetriNet]: 274 programPoint places, 249 predicate places. [2022-11-20 11:33:06,660 INFO L495 AbstractCegarLoop]: Abstraction has has 523 places, 1491 transitions, 23570 flow [2022-11-20 11:33:06,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 140.69230769230768) internal successors, (1829), 13 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:06,661 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:06,662 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:33:06,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:33:06,662 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:33:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash 784701552, now seen corresponding path program 6 times [2022-11-20 11:33:06,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:06,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130527371] [2022-11-20 11:33:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:06,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:33:09,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:09,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130527371] [2022-11-20 11:33:09,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130527371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:09,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:09,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 11:33:09,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778801568] [2022-11-20 11:33:09,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:09,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:33:09,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:09,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:33:09,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:33:09,057 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 275 [2022-11-20 11:33:09,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 1491 transitions, 23570 flow. Second operand has 16 states, 16 states have (on average 128.375) internal successors, (2054), 16 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:09,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:09,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 275 [2022-11-20 11:33:09,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:31,565 INFO L130 PetriNetUnfolder]: 12692/36292 cut-off events. [2022-11-20 11:33:31,565 INFO L131 PetriNetUnfolder]: For 165154/166208 co-relation queries the response was YES. [2022-11-20 11:33:32,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136943 conditions, 36292 events. 12692/36292 cut-off events. For 165154/166208 co-relation queries the response was YES. Maximal size of possible extension queue 707. Compared 410376 event pairs, 2996 based on Foata normal form. 673/35495 useless extension candidates. Maximal degree in co-relation 136835. Up to 14649 conditions per place. [2022-11-20 11:33:32,368 INFO L137 encePairwiseOnDemand]: 238/275 looper letters, 1443 selfloop transitions, 697 changer transitions 6/2298 dead transitions. [2022-11-20 11:33:32,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 2298 transitions, 35875 flow [2022-11-20 11:33:32,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 11:33:32,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 11:33:32,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4098 transitions. [2022-11-20 11:33:32,373 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5322077922077922 [2022-11-20 11:33:32,373 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4098 transitions. [2022-11-20 11:33:32,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4098 transitions. [2022-11-20 11:33:32,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:32,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4098 transitions. [2022-11-20 11:33:32,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 146.35714285714286) internal successors, (4098), 28 states have internal predecessors, (4098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:32,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 275.0) internal successors, (7975), 29 states have internal predecessors, (7975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:32,388 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 275.0) internal successors, (7975), 29 states have internal predecessors, (7975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:32,388 INFO L175 Difference]: Start difference. First operand has 523 places, 1491 transitions, 23570 flow. Second operand 28 states and 4098 transitions. [2022-11-20 11:33:32,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 2298 transitions, 35875 flow