./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:39:13,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:39:13,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:39:13,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:39:13,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:39:13,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:39:13,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:39:13,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:39:13,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:39:13,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:39:13,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:39:13,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:39:13,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:39:13,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:39:13,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:39:13,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:39:13,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:39:13,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:39:13,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:39:13,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:39:13,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:39:13,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:39:13,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:39:13,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:39:13,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:39:13,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:39:13,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:39:13,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:39:13,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:39:13,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:39:13,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:39:13,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:39:13,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:39:13,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:39:13,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:39:13,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:39:13,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:39:13,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:39:13,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:39:13,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:39:13,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:39:13,669 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:39:13,717 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:39:13,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:39:13,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:39:13,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:39:13,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:39:13,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:39:13,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:39:13,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:39:13,727 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:39:13,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:39:13,729 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:39:13,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:39:13,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:39:13,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:39:13,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:39:13,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:39:13,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:39:13,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:39:13,731 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:39:13,731 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:39:13,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:39:13,732 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:39:13,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:39:13,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:39:13,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:39:13,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:39:13,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:39:13,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:39:13,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:39:13,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:39:13,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:39:13,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:39:13,737 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:39:13,738 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:39:13,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:39:13,738 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_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca [2022-11-18 19:39:14,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:39:14,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:39:14,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:39:14,125 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:39:14,126 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:39:14,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2022-11-18 19:39:14,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/data/b75caf8a9/5e1b3de6e362492691c76e3b96419879/FLAGc01db4460 [2022-11-18 19:39:14,955 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:39:14,956 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2022-11-18 19:39:14,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/data/b75caf8a9/5e1b3de6e362492691c76e3b96419879/FLAGc01db4460 [2022-11-18 19:39:15,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/data/b75caf8a9/5e1b3de6e362492691c76e3b96419879 [2022-11-18 19:39:15,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:39:15,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:39:15,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:39:15,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:39:15,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:39:15,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:39:15" (1/1) ... [2022-11-18 19:39:15,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c0d614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:15, skipping insertion in model container [2022-11-18 19:39:15,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:39:15" (1/1) ... [2022-11-18 19:39:15,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:39:15,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:39:15,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:39:15,925 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:39:15,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:39:16,081 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:39:16,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16 WrapperNode [2022-11-18 19:39:16,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:39:16,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:39:16,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:39:16,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:39:16,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (1/1) ... [2022-11-18 19:39:16,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (1/1) ... [2022-11-18 19:39:16,173 INFO L138 Inliner]: procedures = 370, calls = 29, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 226 [2022-11-18 19:39:16,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:39:16,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:39:16,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:39:16,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:39:16,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (1/1) ... [2022-11-18 19:39:16,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (1/1) ... [2022-11-18 19:39:16,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (1/1) ... [2022-11-18 19:39:16,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (1/1) ... [2022-11-18 19:39:16,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (1/1) ... [2022-11-18 19:39:16,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (1/1) ... [2022-11-18 19:39:16,274 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (1/1) ... [2022-11-18 19:39:16,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (1/1) ... [2022-11-18 19:39:16,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:39:16,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:39:16,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:39:16,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:39:16,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (1/1) ... [2022-11-18 19:39:16,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:39:16,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:16,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:39:16,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:39:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:39:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:39:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:39:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:39:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:39:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:39:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:39:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:39:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:39:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:39:16,403 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:39:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:39:16,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:39:16,405 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:39:16,655 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:39:16,659 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:39:17,319 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:39:17,331 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:39:17,332 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:39:17,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:39:17 BoogieIcfgContainer [2022-11-18 19:39:17,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:39:17,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:39:17,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:39:17,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:39:17,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:39:15" (1/3) ... [2022-11-18 19:39:17,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69858c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:39:17, skipping insertion in model container [2022-11-18 19:39:17,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:16" (2/3) ... [2022-11-18 19:39:17,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69858c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:39:17, skipping insertion in model container [2022-11-18 19:39:17,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:39:17" (3/3) ... [2022-11-18 19:39:17,350 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_18-nested_rc.i [2022-11-18 19:39:17,363 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:39:17,375 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:39:17,376 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-18 19:39:17,376 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:39:17,489 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:39:17,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 273 transitions, 551 flow [2022-11-18 19:39:17,729 INFO L130 PetriNetUnfolder]: 4/272 cut-off events. [2022-11-18 19:39:17,729 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:39:17,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 4/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 146. Up to 2 conditions per place. [2022-11-18 19:39:17,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 273 places, 273 transitions, 551 flow [2022-11-18 19:39:17,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 272 transitions, 547 flow [2022-11-18 19:39:17,775 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:39:17,785 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;@704bdbed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:39:17,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-18 19:39:17,800 INFO L130 PetriNetUnfolder]: 3/47 cut-off events. [2022-11-18 19:39:17,801 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:39:17,801 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:17,802 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:17,803 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)] === [2022-11-18 19:39:17,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:17,810 INFO L85 PathProgramCache]: Analyzing trace with hash -400245388, now seen corresponding path program 1 times [2022-11-18 19:39:17,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:17,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886628390] [2022-11-18 19:39:17,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:17,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:18,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:18,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:18,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886628390] [2022-11-18 19:39:18,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886628390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:18,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:18,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:39:18,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604650668] [2022-11-18 19:39:18,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:18,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:39:18,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:18,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:39:18,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:39:18,190 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 273 [2022-11-18 19:39:18,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 272 transitions, 547 flow. Second operand has 2 states, 2 states have (on average 269.5) internal successors, (539), 2 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:18,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:18,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 273 [2022-11-18 19:39:18,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:18,279 INFO L130 PetriNetUnfolder]: 1/269 cut-off events. [2022-11-18 19:39:18,279 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:39:18,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 269 events. 1/269 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 111 event pairs, 0 based on Foata normal form. 3/251 useless extension candidates. Maximal degree in co-relation 144. Up to 2 conditions per place. [2022-11-18 19:39:18,282 INFO L137 encePairwiseOnDemand]: 270/273 looper letters, 1 selfloop transitions, 0 changer transitions 1/269 dead transitions. [2022-11-18 19:39:18,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 269 transitions, 543 flow [2022-11-18 19:39:18,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:39:18,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 19:39:18,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 542 transitions. [2022-11-18 19:39:18,308 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9926739926739927 [2022-11-18 19:39:18,309 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 542 transitions. [2022-11-18 19:39:18,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 542 transitions. [2022-11-18 19:39:18,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:18,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 542 transitions. [2022-11-18 19:39:18,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 271.0) internal successors, (542), 2 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:18,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:18,349 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:18,351 INFO L175 Difference]: Start difference. First operand has 272 places, 272 transitions, 547 flow. Second operand 2 states and 542 transitions. [2022-11-18 19:39:18,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 269 transitions, 543 flow [2022-11-18 19:39:18,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 269 transitions, 542 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:39:18,368 INFO L231 Difference]: Finished difference. Result has 272 places, 268 transitions, 538 flow [2022-11-18 19:39:18,371 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=538, PETRI_PLACES=272, PETRI_TRANSITIONS=268} [2022-11-18 19:39:18,378 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 0 predicate places. [2022-11-18 19:39:18,378 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 268 transitions, 538 flow [2022-11-18 19:39:18,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 269.5) internal successors, (539), 2 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:18,379 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:18,379 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:18,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:39:18,381 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)] === [2022-11-18 19:39:18,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:18,382 INFO L85 PathProgramCache]: Analyzing trace with hash 561368629, now seen corresponding path program 1 times [2022-11-18 19:39:18,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:18,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467792253] [2022-11-18 19:39:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:18,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:18,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:18,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:18,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467792253] [2022-11-18 19:39:18,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467792253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:18,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:18,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:39:18,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577622934] [2022-11-18 19:39:18,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:18,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:39:18,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:18,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:39:18,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:39:18,572 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 273 [2022-11-18 19:39:18,574 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 268 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:18,574 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:18,574 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 273 [2022-11-18 19:39:18,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:18,652 INFO L130 PetriNetUnfolder]: 1/272 cut-off events. [2022-11-18 19:39:18,653 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:39:18,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 272 events. 1/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 286. Up to 9 conditions per place. [2022-11-18 19:39:18,654 INFO L137 encePairwiseOnDemand]: 270/273 looper letters, 10 selfloop transitions, 2 changer transitions 0/272 dead transitions. [2022-11-18 19:39:18,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 272 transitions, 570 flow [2022-11-18 19:39:18,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:39:18,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:39:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 799 transitions. [2022-11-18 19:39:18,680 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9755799755799756 [2022-11-18 19:39:18,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 799 transitions. [2022-11-18 19:39:18,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 799 transitions. [2022-11-18 19:39:18,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:18,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 799 transitions. [2022-11-18 19:39:18,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:18,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:18,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:18,689 INFO L175 Difference]: Start difference. First operand has 272 places, 268 transitions, 538 flow. Second operand 3 states and 799 transitions. [2022-11-18 19:39:18,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 272 transitions, 570 flow [2022-11-18 19:39:18,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 272 transitions, 570 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:39:18,698 INFO L231 Difference]: Finished difference. Result has 274 places, 269 transitions, 550 flow [2022-11-18 19:39:18,699 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=274, PETRI_TRANSITIONS=269} [2022-11-18 19:39:18,700 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 2 predicate places. [2022-11-18 19:39:18,700 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 269 transitions, 550 flow [2022-11-18 19:39:18,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:18,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:18,701 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] [2022-11-18 19:39:18,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:39:18,702 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)] === [2022-11-18 19:39:18,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:18,703 INFO L85 PathProgramCache]: Analyzing trace with hash -282043731, now seen corresponding path program 1 times [2022-11-18 19:39:18,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:18,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713572045] [2022-11-18 19:39:18,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:18,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:18,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:18,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713572045] [2022-11-18 19:39:18,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713572045] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:18,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978397145] [2022-11-18 19:39:18,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:18,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:18,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:18,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:18,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:39:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:19,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:39:19,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:19,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:19,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:19,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978397145] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:19,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:39:19,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 19:39:19,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981699281] [2022-11-18 19:39:19,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:19,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:39:19,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:19,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:39:19,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:39:19,318 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 273 [2022-11-18 19:39:19,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 269 transitions, 550 flow. Second operand has 10 states, 10 states have (on average 263.0) internal successors, (2630), 10 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:19,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:19,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 273 [2022-11-18 19:39:19,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:19,505 INFO L130 PetriNetUnfolder]: 1/279 cut-off events. [2022-11-18 19:39:19,505 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:39:19,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 279 events. 1/279 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. 2/262 useless extension candidates. Maximal degree in co-relation 307. Up to 6 conditions per place. [2022-11-18 19:39:19,507 INFO L137 encePairwiseOnDemand]: 267/273 looper letters, 11 selfloop transitions, 9 changer transitions 0/279 dead transitions. [2022-11-18 19:39:19,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 279 transitions, 612 flow [2022-11-18 19:39:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:39:19,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 19:39:19,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2371 transitions. [2022-11-18 19:39:19,514 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964997964997965 [2022-11-18 19:39:19,514 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2371 transitions. [2022-11-18 19:39:19,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2371 transitions. [2022-11-18 19:39:19,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:19,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2371 transitions. [2022-11-18 19:39:19,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 263.44444444444446) internal successors, (2371), 9 states have internal predecessors, (2371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:19,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 273.0) internal successors, (2730), 10 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:19,530 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 273.0) internal successors, (2730), 10 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:19,531 INFO L175 Difference]: Start difference. First operand has 274 places, 269 transitions, 550 flow. Second operand 9 states and 2371 transitions. [2022-11-18 19:39:19,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 279 transitions, 612 flow [2022-11-18 19:39:19,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 279 transitions, 610 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:39:19,538 INFO L231 Difference]: Finished difference. Result has 284 places, 275 transitions, 598 flow [2022-11-18 19:39:19,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=598, PETRI_PLACES=284, PETRI_TRANSITIONS=275} [2022-11-18 19:39:19,542 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 12 predicate places. [2022-11-18 19:39:19,542 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 275 transitions, 598 flow [2022-11-18 19:39:19,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 263.0) internal successors, (2630), 10 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:19,545 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:19,545 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] [2022-11-18 19:39:19,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:19,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:19,751 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)] === [2022-11-18 19:39:19,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:19,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1558040659, now seen corresponding path program 2 times [2022-11-18 19:39:19,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:19,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194025463] [2022-11-18 19:39:19,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:19,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:20,015 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:20,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:20,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194025463] [2022-11-18 19:39:20,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194025463] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:20,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016868151] [2022-11-18 19:39:20,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:39:20,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:20,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:20,018 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:20,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:39:20,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:39:20,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:39:20,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 19:39:20,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:20,213 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 [2022-11-18 19:39:20,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:39:20,244 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 [2022-11-18 19:39:20,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:39:20,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:39:20,308 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:20,309 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 [2022-11-18 19:39:20,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:39:20,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:39:20,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:39:20,372 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:20,373 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 [2022-11-18 19:39:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 19:39:20,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:39:20,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016868151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:20,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:39:20,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-18 19:39:20,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912929125] [2022-11-18 19:39:20,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:20,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:39:20,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:20,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:39:20,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:39:20,441 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 273 [2022-11-18 19:39:20,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 275 transitions, 598 flow. Second operand has 8 states, 8 states have (on average 144.375) internal successors, (1155), 8 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:20,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:20,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 273 [2022-11-18 19:39:20,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:21,465 INFO L130 PetriNetUnfolder]: 649/2115 cut-off events. [2022-11-18 19:39:21,465 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 19:39:21,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3570 conditions, 2115 events. 649/2115 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11520 event pairs, 648 based on Foata normal form. 0/1865 useless extension candidates. Maximal degree in co-relation 3563. Up to 1405 conditions per place. [2022-11-18 19:39:21,486 INFO L137 encePairwiseOnDemand]: 254/273 looper letters, 108 selfloop transitions, 17 changer transitions 0/273 dead transitions. [2022-11-18 19:39:21,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 273 transitions, 844 flow [2022-11-18 19:39:21,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:39:21,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 19:39:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1414 transitions. [2022-11-18 19:39:21,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5754985754985755 [2022-11-18 19:39:21,491 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1414 transitions. [2022-11-18 19:39:21,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1414 transitions. [2022-11-18 19:39:21,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:21,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1414 transitions. [2022-11-18 19:39:21,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 157.11111111111111) internal successors, (1414), 9 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:21,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 273.0) internal successors, (2730), 10 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:21,505 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 273.0) internal successors, (2730), 10 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:21,505 INFO L175 Difference]: Start difference. First operand has 284 places, 275 transitions, 598 flow. Second operand 9 states and 1414 transitions. [2022-11-18 19:39:21,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 273 transitions, 844 flow [2022-11-18 19:39:21,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 273 transitions, 838 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-18 19:39:21,513 INFO L231 Difference]: Finished difference. Result has 289 places, 273 transitions, 622 flow [2022-11-18 19:39:21,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=622, PETRI_PLACES=289, PETRI_TRANSITIONS=273} [2022-11-18 19:39:21,515 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 17 predicate places. [2022-11-18 19:39:21,516 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 273 transitions, 622 flow [2022-11-18 19:39:21,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 144.375) internal successors, (1155), 8 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:21,516 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:21,517 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] [2022-11-18 19:39:21,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:21,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:21,730 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)] === [2022-11-18 19:39:21,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:21,731 INFO L85 PathProgramCache]: Analyzing trace with hash -446848116, now seen corresponding path program 1 times [2022-11-18 19:39:21,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:21,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968576587] [2022-11-18 19:39:21,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:21,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:22,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:22,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968576587] [2022-11-18 19:39:22,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968576587] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:22,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38677579] [2022-11-18 19:39:22,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:22,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:22,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:22,044 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:22,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:39:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:22,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:39:22,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:22,279 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:22,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:22,416 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:22,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38677579] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:22,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:39:22,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 19:39:22,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119184670] [2022-11-18 19:39:22,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:22,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 19:39:22,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:22,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 19:39:22,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:39:22,431 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 273 [2022-11-18 19:39:22,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 273 transitions, 622 flow. Second operand has 18 states, 18 states have (on average 263.22222222222223) internal successors, (4738), 18 states have internal predecessors, (4738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:22,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:22,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 273 [2022-11-18 19:39:22,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:22,740 INFO L130 PetriNetUnfolder]: 1/297 cut-off events. [2022-11-18 19:39:22,740 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-18 19:39:22,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 297 events. 1/297 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 4/284 useless extension candidates. Maximal degree in co-relation 402. Up to 11 conditions per place. [2022-11-18 19:39:22,742 INFO L137 encePairwiseOnDemand]: 267/273 looper letters, 19 selfloop transitions, 21 changer transitions 0/297 dead transitions. [2022-11-18 19:39:22,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 297 transitions, 802 flow [2022-11-18 19:39:22,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:39:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:39:22,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5525 transitions. [2022-11-18 19:39:22,754 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.963718820861678 [2022-11-18 19:39:22,754 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5525 transitions. [2022-11-18 19:39:22,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5525 transitions. [2022-11-18 19:39:22,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:22,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5525 transitions. [2022-11-18 19:39:22,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 263.0952380952381) internal successors, (5525), 21 states have internal predecessors, (5525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:22,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 273.0) internal successors, (6006), 22 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:22,805 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 273.0) internal successors, (6006), 22 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:22,806 INFO L175 Difference]: Start difference. First operand has 289 places, 273 transitions, 622 flow. Second operand 21 states and 5525 transitions. [2022-11-18 19:39:22,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 297 transitions, 802 flow [2022-11-18 19:39:22,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 297 transitions, 768 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-18 19:39:22,813 INFO L231 Difference]: Finished difference. Result has 306 places, 286 transitions, 718 flow [2022-11-18 19:39:22,814 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=718, PETRI_PLACES=306, PETRI_TRANSITIONS=286} [2022-11-18 19:39:22,815 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 34 predicate places. [2022-11-18 19:39:22,815 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 286 transitions, 718 flow [2022-11-18 19:39:22,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 263.22222222222223) internal successors, (4738), 18 states have internal predecessors, (4738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:22,817 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:22,818 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] [2022-11-18 19:39:22,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:23,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:23,024 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)] === [2022-11-18 19:39:23,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:23,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1811189132, now seen corresponding path program 2 times [2022-11-18 19:39:23,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:23,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634535519] [2022-11-18 19:39:23,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:23,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:23,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:23,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634535519] [2022-11-18 19:39:23,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634535519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:23,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291298958] [2022-11-18 19:39:23,488 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:39:23,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:23,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:23,489 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:23,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:39:23,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:39:23,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:39:23,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 19:39:23,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:23,669 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 [2022-11-18 19:39:23,692 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 [2022-11-18 19:39:23,734 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:23,734 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 [2022-11-18 19:39:23,777 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:23,778 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 [2022-11-18 19:39:23,816 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-18 19:39:23,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:39:23,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291298958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:23,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:39:23,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 19:39:23,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899426192] [2022-11-18 19:39:23,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:23,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:23,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:23,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:23,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:39:23,820 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 273 [2022-11-18 19:39:23,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 286 transitions, 718 flow. Second operand has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:23,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:23,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 273 [2022-11-18 19:39:23,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:24,617 INFO L130 PetriNetUnfolder]: 649/2133 cut-off events. [2022-11-18 19:39:24,617 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-18 19:39:24,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3645 conditions, 2133 events. 649/2133 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11497 event pairs, 648 based on Foata normal form. 0/1885 useless extension candidates. Maximal degree in co-relation 3633. Up to 1406 conditions per place. [2022-11-18 19:39:24,631 INFO L137 encePairwiseOnDemand]: 261/273 looper letters, 109 selfloop transitions, 10 changer transitions 0/284 dead transitions. [2022-11-18 19:39:24,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 284 transitions, 952 flow [2022-11-18 19:39:24,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:24,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:24,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1003 transitions. [2022-11-18 19:39:24,635 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6123321123321124 [2022-11-18 19:39:24,635 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1003 transitions. [2022-11-18 19:39:24,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1003 transitions. [2022-11-18 19:39:24,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:24,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1003 transitions. [2022-11-18 19:39:24,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 167.16666666666666) internal successors, (1003), 6 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:24,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:24,647 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:24,648 INFO L175 Difference]: Start difference. First operand has 306 places, 286 transitions, 718 flow. Second operand 6 states and 1003 transitions. [2022-11-18 19:39:24,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 284 transitions, 952 flow [2022-11-18 19:39:24,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 284 transitions, 928 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-18 19:39:24,668 INFO L231 Difference]: Finished difference. Result has 303 places, 284 transitions, 710 flow [2022-11-18 19:39:24,669 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=710, PETRI_PLACES=303, PETRI_TRANSITIONS=284} [2022-11-18 19:39:24,672 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 31 predicate places. [2022-11-18 19:39:24,672 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 284 transitions, 710 flow [2022-11-18 19:39:24,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:24,674 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:24,674 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] [2022-11-18 19:39:24,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:24,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:24,881 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)] === [2022-11-18 19:39:24,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:24,882 INFO L85 PathProgramCache]: Analyzing trace with hash -2075465824, now seen corresponding path program 1 times [2022-11-18 19:39:24,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:24,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115682443] [2022-11-18 19:39:24,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:24,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:25,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:25,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115682443] [2022-11-18 19:39:25,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115682443] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:25,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858627899] [2022-11-18 19:39:25,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:25,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:25,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:25,407 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:25,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:39:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:25,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 19:39:25,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:25,687 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:25,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:25,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858627899] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:25,976 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:39:25,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 19:39:25,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290481824] [2022-11-18 19:39:25,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:25,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:39:25,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:25,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:39:25,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:39:26,016 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 273 [2022-11-18 19:39:26,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 284 transitions, 710 flow. Second operand has 23 states, 23 states have (on average 263.39130434782606) internal successors, (6058), 23 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:26,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:26,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 273 [2022-11-18 19:39:26,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:26,481 INFO L130 PetriNetUnfolder]: 1/310 cut-off events. [2022-11-18 19:39:26,482 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-18 19:39:26,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 310 events. 1/310 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 3/298 useless extension candidates. Maximal degree in co-relation 481. Up to 16 conditions per place. [2022-11-18 19:39:26,483 INFO L137 encePairwiseOnDemand]: 267/273 looper letters, 25 selfloop transitions, 30 changer transitions 0/310 dead transitions. [2022-11-18 19:39:26,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 310 transitions, 960 flow [2022-11-18 19:39:26,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 19:39:26,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 19:39:26,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7888 transitions. [2022-11-18 19:39:26,500 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9631257631257631 [2022-11-18 19:39:26,500 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7888 transitions. [2022-11-18 19:39:26,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7888 transitions. [2022-11-18 19:39:26,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:26,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7888 transitions. [2022-11-18 19:39:26,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 262.93333333333334) internal successors, (7888), 30 states have internal predecessors, (7888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:26,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 273.0) internal successors, (8463), 31 states have internal predecessors, (8463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:26,545 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 273.0) internal successors, (8463), 31 states have internal predecessors, (8463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:26,545 INFO L175 Difference]: Start difference. First operand has 303 places, 284 transitions, 710 flow. Second operand 30 states and 7888 transitions. [2022-11-18 19:39:26,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 310 transitions, 960 flow [2022-11-18 19:39:26,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 310 transitions, 940 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:39:26,554 INFO L231 Difference]: Finished difference. Result has 331 places, 294 transitions, 842 flow [2022-11-18 19:39:26,555 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=842, PETRI_PLACES=331, PETRI_TRANSITIONS=294} [2022-11-18 19:39:26,556 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 59 predicate places. [2022-11-18 19:39:26,556 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 294 transitions, 842 flow [2022-11-18 19:39:26,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 263.39130434782606) internal successors, (6058), 23 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:26,559 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:26,559 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] [2022-11-18 19:39:26,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:26,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5c94ac3-af13-48a4-8fbc-0c5e37c8b612/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 19:39:26,767 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)] === [2022-11-18 19:39:26,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:26,768 INFO L85 PathProgramCache]: Analyzing trace with hash -523469032, now seen corresponding path program 2 times [2022-11-18 19:39:26,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:26,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603626719] [2022-11-18 19:39:26,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:26,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:27,516 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:39:27,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:27,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603626719] [2022-11-18 19:39:27,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603626719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:27,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:27,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:39:27,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708397270] [2022-11-18 19:39:27,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:27,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:27,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:27,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:27,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:39:27,521 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 273 [2022-11-18 19:39:27,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 294 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:27,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:27,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 273 [2022-11-18 19:39:27,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:28,608 INFO L130 PetriNetUnfolder]: 820/2542 cut-off events. [2022-11-18 19:39:28,609 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-11-18 19:39:28,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4475 conditions, 2542 events. 820/2542 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 14358 event pairs, 819 based on Foata normal form. 0/2264 useless extension candidates. Maximal degree in co-relation 4459. Up to 1764 conditions per place. [2022-11-18 19:39:28,629 INFO L137 encePairwiseOnDemand]: 267/273 looper letters, 116 selfloop transitions, 5 changer transitions 0/293 dead transitions. [2022-11-18 19:39:28,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 293 transitions, 1082 flow [2022-11-18 19:39:28,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:28,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:28,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 986 transitions. [2022-11-18 19:39:28,633 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6019536019536019 [2022-11-18 19:39:28,633 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 986 transitions. [2022-11-18 19:39:28,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 986 transitions. [2022-11-18 19:39:28,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:28,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 986 transitions. [2022-11-18 19:39:28,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.33333333333334) internal successors, (986), 6 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:28,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:28,641 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:28,642 INFO L175 Difference]: Start difference. First operand has 331 places, 294 transitions, 842 flow. Second operand 6 states and 986 transitions. [2022-11-18 19:39:28,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 293 transitions, 1082 flow [2022-11-18 19:39:28,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 293 transitions, 1036 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 19:39:28,652 INFO L231 Difference]: Finished difference. Result has 317 places, 293 transitions, 804 flow [2022-11-18 19:39:28,653 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=317, PETRI_TRANSITIONS=293} [2022-11-18 19:39:28,657 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 45 predicate places. [2022-11-18 19:39:28,657 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 293 transitions, 804 flow [2022-11-18 19:39:28,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:28,658 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:28,658 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] [2022-11-18 19:39:28,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:39:28,659 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)] === [2022-11-18 19:39:28,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2100327872, now seen corresponding path program 1 times [2022-11-18 19:39:28,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:28,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735917182] [2022-11-18 19:39:28,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:28,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:29,604 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:39:29,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:29,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735917182] [2022-11-18 19:39:29,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735917182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:29,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:29,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:39:29,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972877004] [2022-11-18 19:39:29,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:29,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:29,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:29,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:29,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:39:29,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 273 [2022-11-18 19:39:29,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 293 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:29,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:29,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 273 [2022-11-18 19:39:29,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:31,559 INFO L130 PetriNetUnfolder]: 1446/4317 cut-off events. [2022-11-18 19:39:31,559 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-18 19:39:31,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7538 conditions, 4317 events. 1446/4317 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 29975 event pairs, 115 based on Foata normal form. 0/3866 useless extension candidates. Maximal degree in co-relation 7521. Up to 1891 conditions per place. [2022-11-18 19:39:31,594 INFO L137 encePairwiseOnDemand]: 245/273 looper letters, 217 selfloop transitions, 74 changer transitions 0/465 dead transitions. [2022-11-18 19:39:31,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 465 transitions, 1730 flow [2022-11-18 19:39:31,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:31,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1169 transitions. [2022-11-18 19:39:31,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7136752136752137 [2022-11-18 19:39:31,599 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1169 transitions. [2022-11-18 19:39:31,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1169 transitions. [2022-11-18 19:39:31,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:31,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1169 transitions. [2022-11-18 19:39:31,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:31,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:31,609 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:31,609 INFO L175 Difference]: Start difference. First operand has 317 places, 293 transitions, 804 flow. Second operand 6 states and 1169 transitions. [2022-11-18 19:39:31,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 465 transitions, 1730 flow [2022-11-18 19:39:31,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 465 transitions, 1720 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:39:31,623 INFO L231 Difference]: Finished difference. Result has 321 places, 360 transitions, 1266 flow [2022-11-18 19:39:31,624 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1266, PETRI_PLACES=321, PETRI_TRANSITIONS=360} [2022-11-18 19:39:31,625 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 49 predicate places. [2022-11-18 19:39:31,625 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 360 transitions, 1266 flow [2022-11-18 19:39:31,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:31,626 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:31,626 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] [2022-11-18 19:39:31,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:39:31,627 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)] === [2022-11-18 19:39:31,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:31,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1904946281, now seen corresponding path program 1 times [2022-11-18 19:39:31,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:31,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545325018] [2022-11-18 19:39:31,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:31,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:32,515 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:39:32,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:32,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545325018] [2022-11-18 19:39:32,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545325018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:32,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:32,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:39:32,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946168119] [2022-11-18 19:39:32,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:32,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:32,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:32,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:32,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:39:32,520 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2022-11-18 19:39:32,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 360 transitions, 1266 flow. Second operand has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:32,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:32,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2022-11-18 19:39:32,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:33,982 INFO L130 PetriNetUnfolder]: 1207/3986 cut-off events. [2022-11-18 19:39:33,983 INFO L131 PetriNetUnfolder]: For 1354/1439 co-relation queries the response was YES. [2022-11-18 19:39:34,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8093 conditions, 3986 events. 1207/3986 cut-off events. For 1354/1439 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 26907 event pairs, 792 based on Foata normal form. 0/3585 useless extension candidates. Maximal degree in co-relation 8072. Up to 2566 conditions per place. [2022-11-18 19:39:34,022 INFO L137 encePairwiseOnDemand]: 267/273 looper letters, 169 selfloop transitions, 5 changer transitions 0/359 dead transitions. [2022-11-18 19:39:34,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 359 transitions, 1612 flow [2022-11-18 19:39:34,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:34,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:34,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1049 transitions. [2022-11-18 19:39:34,026 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6404151404151404 [2022-11-18 19:39:34,026 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1049 transitions. [2022-11-18 19:39:34,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1049 transitions. [2022-11-18 19:39:34,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:34,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1049 transitions. [2022-11-18 19:39:34,030 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) [2022-11-18 19:39:34,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:34,035 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:34,035 INFO L175 Difference]: Start difference. First operand has 321 places, 360 transitions, 1266 flow. Second operand 6 states and 1049 transitions. [2022-11-18 19:39:34,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 359 transitions, 1612 flow [2022-11-18 19:39:34,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 359 transitions, 1612 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:39:34,048 INFO L231 Difference]: Finished difference. Result has 325 places, 359 transitions, 1274 flow [2022-11-18 19:39:34,050 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, 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} [2022-11-18 19:39:34,051 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 53 predicate places. [2022-11-18 19:39:34,051 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 359 transitions, 1274 flow [2022-11-18 19:39:34,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:34,052 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:34,052 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] [2022-11-18 19:39:34,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:39:34,053 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)] === [2022-11-18 19:39:34,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:34,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2072698922, now seen corresponding path program 1 times [2022-11-18 19:39:34,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:34,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523263401] [2022-11-18 19:39:34,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:34,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:39:34,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:34,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523263401] [2022-11-18 19:39:34,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523263401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:34,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:34,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:39:34,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713504229] [2022-11-18 19:39:34,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:34,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:34,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:34,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:34,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:39:34,809 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 273 [2022-11-18 19:39:34,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 359 transitions, 1274 flow. Second operand has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:34,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:34,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 273 [2022-11-18 19:39:34,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:36,013 INFO L130 PetriNetUnfolder]: 1207/3985 cut-off events. [2022-11-18 19:39:36,013 INFO L131 PetriNetUnfolder]: For 1354/1439 co-relation queries the response was YES. [2022-11-18 19:39:36,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8099 conditions, 3985 events. 1207/3985 cut-off events. For 1354/1439 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 26990 event pairs, 792 based on Foata normal form. 0/3585 useless extension candidates. Maximal degree in co-relation 8077. Up to 2568 conditions per place. [2022-11-18 19:39:36,064 INFO L137 encePairwiseOnDemand]: 267/273 looper letters, 170 selfloop transitions, 5 changer transitions 0/358 dead transitions. [2022-11-18 19:39:36,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 358 transitions, 1622 flow [2022-11-18 19:39:36,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:36,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:36,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1038 transitions. [2022-11-18 19:39:36,070 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6336996336996337 [2022-11-18 19:39:36,071 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1038 transitions. [2022-11-18 19:39:36,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1038 transitions. [2022-11-18 19:39:36,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:36,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1038 transitions. [2022-11-18 19:39:36,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:36,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:36,080 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:36,080 INFO L175 Difference]: Start difference. First operand has 325 places, 359 transitions, 1274 flow. Second operand 6 states and 1038 transitions. [2022-11-18 19:39:36,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 358 transitions, 1622 flow [2022-11-18 19:39:36,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 358 transitions, 1612 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:39:36,094 INFO L231 Difference]: Finished difference. Result has 324 places, 358 transitions, 1272 flow [2022-11-18 19:39:36,095 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1262, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1272, PETRI_PLACES=324, PETRI_TRANSITIONS=358} [2022-11-18 19:39:36,096 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 52 predicate places. [2022-11-18 19:39:36,096 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 358 transitions, 1272 flow [2022-11-18 19:39:36,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:36,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:36,097 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] [2022-11-18 19:39:36,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:39:36,098 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)] === [2022-11-18 19:39:36,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:36,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2000227336, now seen corresponding path program 1 times [2022-11-18 19:39:36,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:36,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156064066] [2022-11-18 19:39:36,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:36,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:36,988 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:39:36,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:36,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156064066] [2022-11-18 19:39:36,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156064066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:36,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:36,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:39:36,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672978501] [2022-11-18 19:39:36,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:36,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:36,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:36,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:36,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:39:36,994 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 273 [2022-11-18 19:39:36,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 358 transitions, 1272 flow. Second operand has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:36,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:36,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 273 [2022-11-18 19:39:36,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:38,677 INFO L130 PetriNetUnfolder]: 1207/3984 cut-off events. [2022-11-18 19:39:38,677 INFO L131 PetriNetUnfolder]: For 1357/1442 co-relation queries the response was YES. [2022-11-18 19:39:38,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8097 conditions, 3984 events. 1207/3984 cut-off events. For 1357/1442 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 26982 event pairs, 792 based on Foata normal form. 0/3585 useless extension candidates. Maximal degree in co-relation 8075. Up to 2567 conditions per place. [2022-11-18 19:39:38,731 INFO L137 encePairwiseOnDemand]: 267/273 looper letters, 169 selfloop transitions, 5 changer transitions 0/357 dead transitions. [2022-11-18 19:39:38,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 357 transitions, 1618 flow [2022-11-18 19:39:38,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:38,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:38,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1037 transitions. [2022-11-18 19:39:38,735 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6330891330891331 [2022-11-18 19:39:38,735 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1037 transitions. [2022-11-18 19:39:38,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1037 transitions. [2022-11-18 19:39:38,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:38,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1037 transitions. [2022-11-18 19:39:38,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 172.83333333333334) internal successors, (1037), 6 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:38,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:38,749 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:38,749 INFO L175 Difference]: Start difference. First operand has 324 places, 358 transitions, 1272 flow. Second operand 6 states and 1037 transitions. [2022-11-18 19:39:38,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 357 transitions, 1618 flow [2022-11-18 19:39:38,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 357 transitions, 1608 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:39:38,767 INFO L231 Difference]: Finished difference. Result has 323 places, 357 transitions, 1270 flow [2022-11-18 19:39:38,767 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1260, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1270, PETRI_PLACES=323, PETRI_TRANSITIONS=357} [2022-11-18 19:39:38,768 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 51 predicate places. [2022-11-18 19:39:38,769 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 357 transitions, 1270 flow [2022-11-18 19:39:38,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:38,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:38,770 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] [2022-11-18 19:39:38,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:39:38,770 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)] === [2022-11-18 19:39:38,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:38,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1869039751, now seen corresponding path program 1 times [2022-11-18 19:39:38,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:38,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013754491] [2022-11-18 19:39:38,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:38,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:39:39,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:39,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013754491] [2022-11-18 19:39:39,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013754491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:39,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:39,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:39:39,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685558150] [2022-11-18 19:39:39,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:39,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:39,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:39,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:39,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:39:39,850 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2022-11-18 19:39:39,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 357 transitions, 1270 flow. Second operand has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:39,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:39,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2022-11-18 19:39:39,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:41,741 INFO L130 PetriNetUnfolder]: 1524/4610 cut-off events. [2022-11-18 19:39:41,741 INFO L131 PetriNetUnfolder]: For 1497/1596 co-relation queries the response was YES. [2022-11-18 19:39:41,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9514 conditions, 4610 events. 1524/4610 cut-off events. For 1497/1596 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 31636 event pairs, 624 based on Foata normal form. 16/4206 useless extension candidates. Maximal degree in co-relation 9492. Up to 2609 conditions per place. [2022-11-18 19:39:41,792 INFO L137 encePairwiseOnDemand]: 250/273 looper letters, 251 selfloop transitions, 130 changer transitions 0/566 dead transitions. [2022-11-18 19:39:41,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 566 transitions, 2826 flow [2022-11-18 19:39:41,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:41,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:41,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1196 transitions. [2022-11-18 19:39:41,795 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7301587301587301 [2022-11-18 19:39:41,795 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1196 transitions. [2022-11-18 19:39:41,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1196 transitions. [2022-11-18 19:39:41,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:41,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1196 transitions. [2022-11-18 19:39:41,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.33333333333334) internal successors, (1196), 6 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:41,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:41,804 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:41,804 INFO L175 Difference]: Start difference. First operand has 323 places, 357 transitions, 1270 flow. Second operand 6 states and 1196 transitions. [2022-11-18 19:39:41,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 566 transitions, 2826 flow [2022-11-18 19:39:41,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 566 transitions, 2816 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:39:41,824 INFO L231 Difference]: Finished difference. Result has 328 places, 486 transitions, 2488 flow [2022-11-18 19:39:41,825 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1260, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2488, PETRI_PLACES=328, PETRI_TRANSITIONS=486} [2022-11-18 19:39:41,827 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 56 predicate places. [2022-11-18 19:39:41,827 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 486 transitions, 2488 flow [2022-11-18 19:39:41,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:41,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:41,828 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] [2022-11-18 19:39:41,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:39:41,828 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)] === [2022-11-18 19:39:41,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:41,829 INFO L85 PathProgramCache]: Analyzing trace with hash -45682255, now seen corresponding path program 1 times [2022-11-18 19:39:41,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:41,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859247740] [2022-11-18 19:39:41,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:41,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:39:42,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:42,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859247740] [2022-11-18 19:39:42,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859247740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:42,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:42,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:39:42,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027442229] [2022-11-18 19:39:42,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:42,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:42,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:42,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:42,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:39:42,626 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2022-11-18 19:39:42,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 486 transitions, 2488 flow. Second operand has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:42,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:42,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2022-11-18 19:39:42,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:44,731 INFO L130 PetriNetUnfolder]: 1622/5396 cut-off events. [2022-11-18 19:39:44,732 INFO L131 PetriNetUnfolder]: For 3832/4019 co-relation queries the response was YES. [2022-11-18 19:39:44,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12509 conditions, 5396 events. 1622/5396 cut-off events. For 3832/4019 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40651 event pairs, 523 based on Foata normal form. 0/5024 useless extension candidates. Maximal degree in co-relation 12483. Up to 2869 conditions per place. [2022-11-18 19:39:44,791 INFO L137 encePairwiseOnDemand]: 251/273 looper letters, 375 selfloop transitions, 129 changer transitions 5/694 dead transitions. [2022-11-18 19:39:44,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 694 transitions, 4544 flow [2022-11-18 19:39:44,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:44,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:44,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1195 transitions. [2022-11-18 19:39:44,796 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7295482295482295 [2022-11-18 19:39:44,796 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1195 transitions. [2022-11-18 19:39:44,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1195 transitions. [2022-11-18 19:39:44,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:44,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1195 transitions. [2022-11-18 19:39:44,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.16666666666666) internal successors, (1195), 6 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:44,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:44,804 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:44,804 INFO L175 Difference]: Start difference. First operand has 328 places, 486 transitions, 2488 flow. Second operand 6 states and 1195 transitions. [2022-11-18 19:39:44,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 694 transitions, 4544 flow [2022-11-18 19:39:44,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 694 transitions, 4544 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:39:44,831 INFO L231 Difference]: Finished difference. Result has 338 places, 613 transitions, 3954 flow [2022-11-18 19:39:44,832 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=2488, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3954, PETRI_PLACES=338, PETRI_TRANSITIONS=613} [2022-11-18 19:39:44,833 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 66 predicate places. [2022-11-18 19:39:44,833 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 613 transitions, 3954 flow [2022-11-18 19:39:44,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:44,834 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:44,834 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] [2022-11-18 19:39:44,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:39:44,835 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)] === [2022-11-18 19:39:44,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:44,835 INFO L85 PathProgramCache]: Analyzing trace with hash 626466260, now seen corresponding path program 1 times [2022-11-18 19:39:44,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:44,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225197415] [2022-11-18 19:39:44,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:44,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:45,642 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:39:45,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:45,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225197415] [2022-11-18 19:39:45,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225197415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:45,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:45,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:39:45,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840264566] [2022-11-18 19:39:45,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:45,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:45,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:45,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:45,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:39:45,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 273 [2022-11-18 19:39:45,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 613 transitions, 3954 flow. Second operand has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:45,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:45,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 273 [2022-11-18 19:39:45,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:47,817 INFO L130 PetriNetUnfolder]: 1747/5569 cut-off events. [2022-11-18 19:39:47,817 INFO L131 PetriNetUnfolder]: For 5722/5750 co-relation queries the response was YES. [2022-11-18 19:39:47,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14906 conditions, 5569 events. 1747/5569 cut-off events. For 5722/5750 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 40955 event pairs, 657 based on Foata normal form. 0/5265 useless extension candidates. Maximal degree in co-relation 14875. Up to 3519 conditions per place. [2022-11-18 19:39:47,870 INFO L137 encePairwiseOnDemand]: 254/273 looper letters, 445 selfloop transitions, 84 changer transitions 0/711 dead transitions. [2022-11-18 19:39:47,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 711 transitions, 5526 flow [2022-11-18 19:39:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:47,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:47,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1109 transitions. [2022-11-18 19:39:47,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6770451770451771 [2022-11-18 19:39:47,874 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1109 transitions. [2022-11-18 19:39:47,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1109 transitions. [2022-11-18 19:39:47,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:47,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1109 transitions. [2022-11-18 19:39:47,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.83333333333334) internal successors, (1109), 6 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:47,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:47,881 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 273.0) internal successors, (1911), 7 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:47,881 INFO L175 Difference]: Start difference. First operand has 338 places, 613 transitions, 3954 flow. Second operand 6 states and 1109 transitions. [2022-11-18 19:39:47,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 711 transitions, 5526 flow [2022-11-18 19:39:47,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 711 transitions, 5272 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-18 19:39:47,929 INFO L231 Difference]: Finished difference. Result has 347 places, 684 transitions, 4490 flow [2022-11-18 19:39:47,929 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=3706, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4490, PETRI_PLACES=347, PETRI_TRANSITIONS=684} [2022-11-18 19:39:47,930 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 75 predicate places. [2022-11-18 19:39:47,930 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 684 transitions, 4490 flow [2022-11-18 19:39:47,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:47,931 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:47,931 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] [2022-11-18 19:39:47,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:39:47,932 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)] === [2022-11-18 19:39:47,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:47,932 INFO L85 PathProgramCache]: Analyzing trace with hash 179601006, now seen corresponding path program 1 times [2022-11-18 19:39:47,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:47,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105802957] [2022-11-18 19:39:47,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:47,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:39:50,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:50,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105802957] [2022-11-18 19:39:50,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105802957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:50,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:50,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-18 19:39:50,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610685181] [2022-11-18 19:39:50,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:50,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 19:39:50,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:50,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 19:39:50,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:39:50,884 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 273 [2022-11-18 19:39:50,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 684 transitions, 4490 flow. Second operand has 21 states, 21 states have (on average 110.57142857142857) internal successors, (2322), 21 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:50,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:50,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 273 [2022-11-18 19:39:50,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:57,967 INFO L130 PetriNetUnfolder]: 2720/7443 cut-off events. [2022-11-18 19:39:57,967 INFO L131 PetriNetUnfolder]: For 9126/9139 co-relation queries the response was YES. [2022-11-18 19:39:58,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22417 conditions, 7443 events. 2720/7443 cut-off events. For 9126/9139 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 55896 event pairs, 426 based on Foata normal form. 44/7157 useless extension candidates. Maximal degree in co-relation 22381. Up to 2937 conditions per place. [2022-11-18 19:39:58,109 INFO L137 encePairwiseOnDemand]: 233/273 looper letters, 788 selfloop transitions, 209 changer transitions 16/1148 dead transitions. [2022-11-18 19:39:58,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 1148 transitions, 9058 flow [2022-11-18 19:39:58,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-18 19:39:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-11-18 19:39:58,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 5109 transitions. [2022-11-18 19:39:58,124 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43521594684385384 [2022-11-18 19:39:58,125 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 5109 transitions. [2022-11-18 19:39:58,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 5109 transitions. [2022-11-18 19:39:58,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:58,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 5109 transitions. [2022-11-18 19:39:58,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 118.81395348837209) internal successors, (5109), 43 states have internal predecessors, (5109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:58,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 273.0) internal successors, (12012), 44 states have internal predecessors, (12012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:58,156 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 273.0) internal successors, (12012), 44 states have internal predecessors, (12012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:58,157 INFO L175 Difference]: Start difference. First operand has 347 places, 684 transitions, 4490 flow. Second operand 43 states and 5109 transitions. [2022-11-18 19:39:58,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 1148 transitions, 9058 flow [2022-11-18 19:39:58,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 1148 transitions, 8986 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-18 19:39:58,270 INFO L231 Difference]: Finished difference. Result has 398 places, 757 transitions, 5652 flow [2022-11-18 19:39:58,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=4436, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=5652, PETRI_PLACES=398, PETRI_TRANSITIONS=757} [2022-11-18 19:39:58,271 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 126 predicate places. [2022-11-18 19:39:58,272 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 757 transitions, 5652 flow [2022-11-18 19:39:58,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 110.57142857142857) internal successors, (2322), 21 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:58,273 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:58,273 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] [2022-11-18 19:39:58,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:39:58,274 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)] === [2022-11-18 19:39:58,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:58,274 INFO L85 PathProgramCache]: Analyzing trace with hash -199762916, now seen corresponding path program 2 times [2022-11-18 19:39:58,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:58,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412452965] [2022-11-18 19:39:58,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:58,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:01,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:01,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412452965] [2022-11-18 19:40:01,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412452965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:01,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:01,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-18 19:40:01,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464779930] [2022-11-18 19:40:01,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:01,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 19:40:01,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:01,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 19:40:01,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:40:01,268 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 273 [2022-11-18 19:40:01,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 757 transitions, 5652 flow. Second operand has 21 states, 21 states have (on average 110.57142857142857) internal successors, (2322), 21 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:01,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:01,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 273 [2022-11-18 19:40:01,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:09,043 INFO L130 PetriNetUnfolder]: 4130/11398 cut-off events. [2022-11-18 19:40:09,043 INFO L131 PetriNetUnfolder]: For 19334/19360 co-relation queries the response was YES. [2022-11-18 19:40:09,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36179 conditions, 11398 events. 4130/11398 cut-off events. For 19334/19360 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 96861 event pairs, 1041 based on Foata normal form. 46/10963 useless extension candidates. Maximal degree in co-relation 36133. Up to 3527 conditions per place. [2022-11-18 19:40:09,206 INFO L137 encePairwiseOnDemand]: 222/273 looper letters, 1032 selfloop transitions, 327 changer transitions 16/1510 dead transitions. [2022-11-18 19:40:09,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 1510 transitions, 13065 flow [2022-11-18 19:40:09,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-18 19:40:09,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-18 19:40:09,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4726 transitions. [2022-11-18 19:40:09,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45556198187777136 [2022-11-18 19:40:09,215 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 4726 transitions. [2022-11-18 19:40:09,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 4726 transitions. [2022-11-18 19:40:09,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:09,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 4726 transitions. [2022-11-18 19:40:09,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 124.36842105263158) internal successors, (4726), 38 states have internal predecessors, (4726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:09,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 273.0) internal successors, (10647), 39 states have internal predecessors, (10647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:09,247 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 273.0) internal successors, (10647), 39 states have internal predecessors, (10647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:09,247 INFO L175 Difference]: Start difference. First operand has 398 places, 757 transitions, 5652 flow. Second operand 38 states and 4726 transitions. [2022-11-18 19:40:09,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 1510 transitions, 13065 flow [2022-11-18 19:40:09,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 1510 transitions, 12953 flow, removed 5 selfloop flow, removed 21 redundant places. [2022-11-18 19:40:09,429 INFO L231 Difference]: Finished difference. Result has 427 places, 891 transitions, 8297 flow [2022-11-18 19:40:09,430 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=5576, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=757, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=8297, PETRI_PLACES=427, PETRI_TRANSITIONS=891} [2022-11-18 19:40:09,431 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 155 predicate places. [2022-11-18 19:40:09,431 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 891 transitions, 8297 flow [2022-11-18 19:40:09,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 110.57142857142857) internal successors, (2322), 21 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:09,432 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:09,432 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] [2022-11-18 19:40:09,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:40:09,433 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)] === [2022-11-18 19:40:09,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:09,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1134777100, now seen corresponding path program 3 times [2022-11-18 19:40:09,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:09,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824672915] [2022-11-18 19:40:09,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:09,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:12,548 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:12,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:12,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824672915] [2022-11-18 19:40:12,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824672915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:12,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:12,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:40:12,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108422439] [2022-11-18 19:40:12,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:12,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:40:12,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:12,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:40:12,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:40:12,554 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 273 [2022-11-18 19:40:12,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 891 transitions, 8297 flow. Second operand has 20 states, 20 states have (on average 112.9) internal successors, (2258), 20 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:12,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:12,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 273 [2022-11-18 19:40:12,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:22,396 INFO L130 PetriNetUnfolder]: 5251/14971 cut-off events. [2022-11-18 19:40:22,396 INFO L131 PetriNetUnfolder]: For 34916/35142 co-relation queries the response was YES. [2022-11-18 19:40:22,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50089 conditions, 14971 events. 5251/14971 cut-off events. For 34916/35142 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 139353 event pairs, 1065 based on Foata normal form. 142/14477 useless extension candidates. Maximal degree in co-relation 50030. Up to 4401 conditions per place. [2022-11-18 19:40:22,604 INFO L137 encePairwiseOnDemand]: 226/273 looper letters, 1156 selfloop transitions, 407 changer transitions 12/1712 dead transitions. [2022-11-18 19:40:22,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 1712 transitions, 17728 flow [2022-11-18 19:40:22,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-18 19:40:22,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-18 19:40:22,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 4565 transitions. [2022-11-18 19:40:22,615 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4644892144892145 [2022-11-18 19:40:22,615 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 4565 transitions. [2022-11-18 19:40:22,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 4565 transitions. [2022-11-18 19:40:22,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:22,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 4565 transitions. [2022-11-18 19:40:22,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 126.80555555555556) internal successors, (4565), 36 states have internal predecessors, (4565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 273.0) internal successors, (10101), 37 states have internal predecessors, (10101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,641 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 273.0) internal successors, (10101), 37 states have internal predecessors, (10101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,641 INFO L175 Difference]: Start difference. First operand has 427 places, 891 transitions, 8297 flow. Second operand 36 states and 4565 transitions. [2022-11-18 19:40:22,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 1712 transitions, 17728 flow [2022-11-18 19:40:22,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 1712 transitions, 17549 flow, removed 0 selfloop flow, removed 23 redundant places. [2022-11-18 19:40:23,073 INFO L231 Difference]: Finished difference. Result has 459 places, 1078 transitions, 12137 flow [2022-11-18 19:40:23,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=8154, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=891, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=12137, PETRI_PLACES=459, PETRI_TRANSITIONS=1078} [2022-11-18 19:40:23,078 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 187 predicate places. [2022-11-18 19:40:23,078 INFO L495 AbstractCegarLoop]: Abstraction has has 459 places, 1078 transitions, 12137 flow [2022-11-18 19:40:23,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 112.9) internal successors, (2258), 20 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:23,079 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:23,080 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] [2022-11-18 19:40:23,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 19:40:23,080 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)] === [2022-11-18 19:40:23,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:23,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1983941384, now seen corresponding path program 4 times [2022-11-18 19:40:23,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:23,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839328089] [2022-11-18 19:40:23,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:23,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:26,411 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:26,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:26,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839328089] [2022-11-18 19:40:26,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839328089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:26,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:26,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:40:26,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901855627] [2022-11-18 19:40:26,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:26,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:40:26,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:26,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:40:26,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:40:26,416 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 273 [2022-11-18 19:40:26,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 1078 transitions, 12137 flow. Second operand has 20 states, 20 states have (on average 112.9) internal successors, (2258), 20 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:26,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:26,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 273 [2022-11-18 19:40:26,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:41,245 INFO L130 PetriNetUnfolder]: 8224/23531 cut-off events. [2022-11-18 19:40:41,245 INFO L131 PetriNetUnfolder]: For 67832/68173 co-relation queries the response was YES. [2022-11-18 19:40:41,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80971 conditions, 23531 events. 8224/23531 cut-off events. For 67832/68173 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 243939 event pairs, 2142 based on Foata normal form. 265/22816 useless extension candidates. Maximal degree in co-relation 80892. Up to 7170 conditions per place. [2022-11-18 19:40:41,667 INFO L137 encePairwiseOnDemand]: 227/273 looper letters, 1071 selfloop transitions, 567 changer transitions 10/1785 dead transitions. [2022-11-18 19:40:41,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 1785 transitions, 21982 flow [2022-11-18 19:40:41,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 19:40:41,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-18 19:40:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3882 transitions. [2022-11-18 19:40:41,677 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4587025877348458 [2022-11-18 19:40:41,677 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3882 transitions. [2022-11-18 19:40:41,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3882 transitions. [2022-11-18 19:40:41,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:41,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3882 transitions. [2022-11-18 19:40:41,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 125.2258064516129) internal successors, (3882), 31 states have internal predecessors, (3882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 273.0) internal successors, (8736), 32 states have internal predecessors, (8736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,699 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 273.0) internal successors, (8736), 32 states have internal predecessors, (8736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,699 INFO L175 Difference]: Start difference. First operand has 459 places, 1078 transitions, 12137 flow. Second operand 31 states and 3882 transitions. [2022-11-18 19:40:41,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 1785 transitions, 21982 flow [2022-11-18 19:40:42,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 1785 transitions, 21703 flow, removed 103 selfloop flow, removed 13 redundant places. [2022-11-18 19:40:42,623 INFO L231 Difference]: Finished difference. Result has 488 places, 1296 transitions, 17811 flow [2022-11-18 19:40:42,624 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=11900, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1078, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=349, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=17811, PETRI_PLACES=488, PETRI_TRANSITIONS=1296} [2022-11-18 19:40:42,625 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 216 predicate places. [2022-11-18 19:40:42,626 INFO L495 AbstractCegarLoop]: Abstraction has has 488 places, 1296 transitions, 17811 flow [2022-11-18 19:40:42,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 112.9) internal successors, (2258), 20 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:42,626 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:42,627 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] [2022-11-18 19:40:42,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 19:40:42,627 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)] === [2022-11-18 19:40:42,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:42,628 INFO L85 PathProgramCache]: Analyzing trace with hash 79010752, now seen corresponding path program 5 times [2022-11-18 19:40:42,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:42,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474905903] [2022-11-18 19:40:42,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:42,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:45,706 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:45,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:45,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474905903] [2022-11-18 19:40:45,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474905903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:45,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:45,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:40:45,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156233616] [2022-11-18 19:40:45,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:45,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:40:45,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:45,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:40:45,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:40:45,711 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 273 [2022-11-18 19:40:45,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 1296 transitions, 17811 flow. Second operand has 20 states, 20 states have (on average 112.9) internal successors, (2258), 20 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:45,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:45,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 273 [2022-11-18 19:40:45,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:07,181 INFO L130 PetriNetUnfolder]: 10394/29670 cut-off events. [2022-11-18 19:41:07,182 INFO L131 PetriNetUnfolder]: For 109487/110147 co-relation queries the response was YES. [2022-11-18 19:41:07,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106601 conditions, 29670 events. 10394/29670 cut-off events. For 109487/110147 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 321701 event pairs, 2846 based on Foata normal form. 535/28976 useless extension candidates. Maximal degree in co-relation 106510. Up to 8340 conditions per place. [2022-11-18 19:41:07,737 INFO L137 encePairwiseOnDemand]: 224/273 looper letters, 1228 selfloop transitions, 690 changer transitions 16/2071 dead transitions. [2022-11-18 19:41:07,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 2071 transitions, 28358 flow [2022-11-18 19:41:07,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-18 19:41:07,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-18 19:41:07,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 4583 transitions. [2022-11-18 19:41:07,748 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4663207163207163 [2022-11-18 19:41:07,748 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 4583 transitions. [2022-11-18 19:41:07,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 4583 transitions. [2022-11-18 19:41:07,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:07,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 4583 transitions. [2022-11-18 19:41:07,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 127.30555555555556) internal successors, (4583), 36 states have internal predecessors, (4583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:07,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 273.0) internal successors, (10101), 37 states have internal predecessors, (10101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:07,774 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 273.0) internal successors, (10101), 37 states have internal predecessors, (10101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:07,775 INFO L175 Difference]: Start difference. First operand has 488 places, 1296 transitions, 17811 flow. Second operand 36 states and 4583 transitions. [2022-11-18 19:41:07,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 2071 transitions, 28358 flow [2022-11-18 19:41:08,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 2071 transitions, 28118 flow, removed 75 selfloop flow, removed 12 redundant places. [2022-11-18 19:41:08,974 INFO L231 Difference]: Finished difference. Result has 528 places, 1475 transitions, 23802 flow [2022-11-18 19:41:08,976 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=17589, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=512, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=23802, PETRI_PLACES=528, PETRI_TRANSITIONS=1475} [2022-11-18 19:41:08,976 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 256 predicate places. [2022-11-18 19:41:08,977 INFO L495 AbstractCegarLoop]: Abstraction has has 528 places, 1475 transitions, 23802 flow [2022-11-18 19:41:08,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 112.9) internal successors, (2258), 20 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:08,977 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:08,978 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] [2022-11-18 19:41:08,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 19:41:08,978 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)] === [2022-11-18 19:41:08,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:08,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1173504330, now seen corresponding path program 6 times [2022-11-18 19:41:08,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:08,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480212323] [2022-11-18 19:41:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:08,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:41:11,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:11,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480212323] [2022-11-18 19:41:11,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480212323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:11,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:11,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-18 19:41:11,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298299631] [2022-11-18 19:41:11,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:11,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 19:41:11,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:11,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 19:41:11,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:41:11,416 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 273 [2022-11-18 19:41:11,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 1475 transitions, 23802 flow. Second operand has 21 states, 21 states have (on average 110.57142857142857) internal successors, (2322), 21 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:11,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:11,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 273 [2022-11-18 19:41:11,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:35,792 INFO L130 PetriNetUnfolder]: 13102/35868 cut-off events. [2022-11-18 19:41:35,792 INFO L131 PetriNetUnfolder]: For 167507/167615 co-relation queries the response was YES. [2022-11-18 19:41:36,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136241 conditions, 35868 events. 13102/35868 cut-off events. For 167507/167615 co-relation queries the response was YES. Maximal size of possible extension queue 670. Compared 393410 event pairs, 2995 based on Foata normal form. 91/34492 useless extension candidates. Maximal degree in co-relation 136133. Up to 11149 conditions per place. [2022-11-18 19:41:36,625 INFO L137 encePairwiseOnDemand]: 224/273 looper letters, 1193 selfloop transitions, 906 changer transitions 12/2246 dead transitions. [2022-11-18 19:41:36,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 2246 transitions, 35028 flow [2022-11-18 19:41:36,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-18 19:41:36,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-11-18 19:41:36,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 4926 transitions. [2022-11-18 19:41:36,638 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4510989010989011 [2022-11-18 19:41:36,638 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 4926 transitions. [2022-11-18 19:41:36,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 4926 transitions. [2022-11-18 19:41:36,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:36,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 4926 transitions. [2022-11-18 19:41:36,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 123.15) internal successors, (4926), 40 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:36,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 273.0) internal successors, (11193), 41 states have internal predecessors, (11193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:36,673 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 273.0) internal successors, (11193), 41 states have internal predecessors, (11193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:36,674 INFO L175 Difference]: Start difference. First operand has 528 places, 1475 transitions, 23802 flow. Second operand 40 states and 4926 transitions. [2022-11-18 19:41:36,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 2246 transitions, 35028 flow [2022-11-18 19:41:39,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 2246 transitions, 34571 flow, removed 144 selfloop flow, removed 17 redundant places. [2022-11-18 19:41:39,418 INFO L231 Difference]: Finished difference. Result has 563 places, 1633 transitions, 29793 flow [2022-11-18 19:41:39,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=23376, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=752, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=29793, PETRI_PLACES=563, PETRI_TRANSITIONS=1633} [2022-11-18 19:41:39,420 INFO L288 CegarLoopForPetriNet]: 272 programPoint places, 291 predicate places. [2022-11-18 19:41:39,420 INFO L495 AbstractCegarLoop]: Abstraction has has 563 places, 1633 transitions, 29793 flow [2022-11-18 19:41:39,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 110.57142857142857) internal successors, (2322), 21 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:39,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:39,421 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] [2022-11-18 19:41:39,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 19:41:39,422 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 19:41:39,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:39,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1308067566, now seen corresponding path program 7 times [2022-11-18 19:41:39,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:39,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231368879] [2022-11-18 19:41:39,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:39,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:41:41,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:41,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231368879] [2022-11-18 19:41:41,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231368879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:41,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:41,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:41:41,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448317798] [2022-11-18 19:41:41,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:41,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:41:41,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:41,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:41:41,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:41:41,813 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 273 [2022-11-18 19:41:41,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 1633 transitions, 29793 flow. Second operand has 20 states, 20 states have (on average 112.9) internal successors, (2258), 20 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:41,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:41,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 273 [2022-11-18 19:41:41,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand