./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc --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 e8cd6f4fedd4ae62debc23b5e2621fa19163a924ac1cc7b32aeb6e38c2fa5ce1 --- 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-5e519f3 [2022-11-02 21:02:54,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:02:54,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:02:54,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:02:54,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:02:54,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:02:54,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:02:54,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:02:54,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:02:54,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:02:54,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:02:54,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:02:54,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:02:54,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:02:54,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:02:54,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:02:54,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:02:54,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:02:54,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:02:54,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:02:54,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:02:54,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:02:54,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:02:54,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:02:54,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:02:54,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:02:54,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:02:54,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:02:54,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:02:54,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:02:54,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:02:54,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:02:54,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:02:54,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:02:54,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:02:54,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:02:54,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:02:54,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:02:54,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:02:54,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:02:54,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:02:54,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:02:54,748 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:02:54,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:02:54,749 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:02:54,749 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:02:54,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:02:54,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:02:54,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:02:54,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:02:54,756 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:02:54,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:02:54,758 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:02:54,758 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:02:54,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:02:54,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:02:54,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:02:54,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:02:54,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:02:54,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:02:54,759 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:02:54,759 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:02:54,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:02:54,760 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:02:54,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:02:54,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:02:54,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:02:54,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:02:54,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:02:54,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:02:54,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:02:54,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:02:54,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:02:54,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:02:54,762 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:02:54,762 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:02:54,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:02:54,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8cd6f4fedd4ae62debc23b5e2621fa19163a924ac1cc7b32aeb6e38c2fa5ce1 [2022-11-02 21:02:55,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:02:55,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:02:55,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:02:55,116 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:02:55,117 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:02:55,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2022-11-02 21:02:55,191 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/data/ea20c0f49/ca30b67bf1fe4d5c826db33cc411cc01/FLAG44e4baaab [2022-11-02 21:02:55,861 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:02:55,862 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2022-11-02 21:02:55,884 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/data/ea20c0f49/ca30b67bf1fe4d5c826db33cc411cc01/FLAG44e4baaab [2022-11-02 21:02:56,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/data/ea20c0f49/ca30b67bf1fe4d5c826db33cc411cc01 [2022-11-02 21:02:56,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:02:56,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:02:56,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:02:56,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:02:56,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:02:56,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e0a3f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56, skipping insertion in model container [2022-11-02 21:02:56,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:56,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:02:56,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:02:56,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:02:56,851 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:02:56,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:02:56,989 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:02:56,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56 WrapperNode [2022-11-02 21:02:56,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:02:56,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:02:56,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:02:56,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:02:56,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:57,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:57,140 INFO L138 Inliner]: procedures = 371, calls = 47, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 448 [2022-11-02 21:02:57,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:02:57,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:02:57,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:02:57,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:02:57,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:57,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:57,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:57,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:57,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:57,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:57,244 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:57,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:57,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:02:57,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:02:57,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:02:57,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:02:57,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (1/1) ... [2022-11-02 21:02:57,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:02:57,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:02:57,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:02:57,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:02:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:02:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 21:02:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:02:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:02:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:02:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:02:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:02:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:02:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:02:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 21:02:57,344 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 21:02:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:02:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:02:57,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:02:57,346 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:02:57,500 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:02:57,502 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:02:58,464 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:02:58,484 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:02:58,484 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:02:58,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:02:58 BoogieIcfgContainer [2022-11-02 21:02:58,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:02:58,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:02:58,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:02:58,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:02:58,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:02:56" (1/3) ... [2022-11-02 21:02:58,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497b01e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:02:58, skipping insertion in model container [2022-11-02 21:02:58,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:56" (2/3) ... [2022-11-02 21:02:58,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497b01e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:02:58, skipping insertion in model container [2022-11-02 21:02:58,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:02:58" (3/3) ... [2022-11-02 21:02:58,499 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2022-11-02 21:02:58,510 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:02:58,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:02:58,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2022-11-02 21:02:58,521 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:02:58,653 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 21:02:58,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 544 places, 545 transitions, 1095 flow [2022-11-02 21:02:59,025 INFO L130 PetriNetUnfolder]: 5/544 cut-off events. [2022-11-02 21:02:59,026 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:02:59,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 544 events. 5/544 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 132 event pairs, 0 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 418. Up to 2 conditions per place. [2022-11-02 21:02:59,034 INFO L82 GeneralOperation]: Start removeDead. Operand has 544 places, 545 transitions, 1095 flow [2022-11-02 21:02:59,045 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 543 places, 544 transitions, 1091 flow [2022-11-02 21:02:59,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:02:59,070 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;@66bdef53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:02:59,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-02 21:02:59,081 INFO L130 PetriNetUnfolder]: 4/66 cut-off events. [2022-11-02 21:02:59,082 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:02:59,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:59,083 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:59,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:02:59,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:59,088 INFO L85 PathProgramCache]: Analyzing trace with hash -257997757, now seen corresponding path program 1 times [2022-11-02 21:02:59,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:59,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303061709] [2022-11-02 21:02:59,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:59,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:59,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:59,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303061709] [2022-11-02 21:02:59,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303061709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:59,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:59,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:59,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442951694] [2022-11-02 21:02:59,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:59,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 21:02:59,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:59,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 21:02:59,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:02:59,442 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 540 out of 545 [2022-11-02 21:02:59,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 544 transitions, 1091 flow. Second operand has 2 states, 2 states have (on average 540.5) internal successors, (1081), 2 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:59,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:59,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 540 of 545 [2022-11-02 21:02:59,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:59,593 INFO L130 PetriNetUnfolder]: 1/540 cut-off events. [2022-11-02 21:02:59,593 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:02:59,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 540 events. 1/540 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 148 event pairs, 0 based on Foata normal form. 4/501 useless extension candidates. Maximal degree in co-relation 415. Up to 2 conditions per place. [2022-11-02 21:02:59,596 INFO L137 encePairwiseOnDemand]: 541/545 looper letters, 1 selfloop transitions, 0 changer transitions 2/540 dead transitions. [2022-11-02 21:02:59,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 540 transitions, 1085 flow [2022-11-02 21:02:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 21:02:59,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 21:02:59,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1085 transitions. [2022-11-02 21:02:59,618 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9954128440366973 [2022-11-02 21:02:59,619 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1085 transitions. [2022-11-02 21:02:59,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1085 transitions. [2022-11-02 21:02:59,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:59,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1085 transitions. [2022-11-02 21:02:59,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 542.5) internal successors, (1085), 2 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:59,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 545.0) internal successors, (1635), 3 states have internal predecessors, (1635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:59,648 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 545.0) internal successors, (1635), 3 states have internal predecessors, (1635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:59,650 INFO L175 Difference]: Start difference. First operand has 543 places, 544 transitions, 1091 flow. Second operand 2 states and 1085 transitions. [2022-11-02 21:02:59,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 540 transitions, 1085 flow [2022-11-02 21:02:59,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 540 transitions, 1084 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:02:59,701 INFO L231 Difference]: Finished difference. Result has 543 places, 538 transitions, 1078 flow [2022-11-02 21:02:59,704 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1078, PETRI_PLACES=543, PETRI_TRANSITIONS=538} [2022-11-02 21:02:59,712 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 0 predicate places. [2022-11-02 21:02:59,712 INFO L495 AbstractCegarLoop]: Abstraction has has 543 places, 538 transitions, 1078 flow [2022-11-02 21:02:59,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 540.5) internal successors, (1081), 2 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:59,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:59,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:59,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:02:59,714 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:02:59,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:59,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1692302498, now seen corresponding path program 1 times [2022-11-02 21:02:59,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:59,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6892321] [2022-11-02 21:02:59,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:59,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:59,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:59,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:59,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6892321] [2022-11-02 21:02:59,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6892321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:59,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:59,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:02:59,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279757674] [2022-11-02 21:02:59,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:59,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:59,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:59,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:59,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:59,896 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 533 out of 545 [2022-11-02 21:02:59,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 538 transitions, 1078 flow. Second operand has 3 states, 3 states have (on average 534.0) internal successors, (1602), 3 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:59,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:59,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 533 of 545 [2022-11-02 21:02:59,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:00,047 INFO L130 PetriNetUnfolder]: 1/542 cut-off events. [2022-11-02 21:03:00,047 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:03:00,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 542 events. 1/542 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 145 event pairs, 0 based on Foata normal form. 0/501 useless extension candidates. Maximal degree in co-relation 556. Up to 9 conditions per place. [2022-11-02 21:03:00,049 INFO L137 encePairwiseOnDemand]: 542/545 looper letters, 10 selfloop transitions, 2 changer transitions 0/542 dead transitions. [2022-11-02 21:03:00,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 542 transitions, 1110 flow [2022-11-02 21:03:00,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:03:00,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:03:00,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1612 transitions. [2022-11-02 21:03:00,054 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9859327217125382 [2022-11-02 21:03:00,054 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1612 transitions. [2022-11-02 21:03:00,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1612 transitions. [2022-11-02 21:03:00,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:00,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1612 transitions. [2022-11-02 21:03:00,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 537.3333333333334) internal successors, (1612), 3 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:00,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 545.0) internal successors, (2180), 4 states have internal predecessors, (2180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:00,066 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 545.0) internal successors, (2180), 4 states have internal predecessors, (2180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:00,066 INFO L175 Difference]: Start difference. First operand has 543 places, 538 transitions, 1078 flow. Second operand 3 states and 1612 transitions. [2022-11-02 21:03:00,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 542 transitions, 1110 flow [2022-11-02 21:03:00,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 542 transitions, 1110 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:03:00,079 INFO L231 Difference]: Finished difference. Result has 544 places, 539 transitions, 1090 flow [2022-11-02 21:03:00,080 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1090, PETRI_PLACES=544, PETRI_TRANSITIONS=539} [2022-11-02 21:03:00,081 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 1 predicate places. [2022-11-02 21:03:00,082 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 539 transitions, 1090 flow [2022-11-02 21:03:00,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 534.0) internal successors, (1602), 3 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:00,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:00,083 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:00,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:03:00,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:00,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:00,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1449414752, now seen corresponding path program 1 times [2022-11-02 21:03:00,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:00,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130008010] [2022-11-02 21:03:00,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:00,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:00,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:00,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:00,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130008010] [2022-11-02 21:03:00,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130008010] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:03:00,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143521543] [2022-11-02 21:03:00,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:00,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:03:00,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:03:00,324 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:03:00,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:03:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:00,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:03:00,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:03:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:00,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:03:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:00,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143521543] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:03:00,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:03:00,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-02 21:03:00,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362859416] [2022-11-02 21:03:00,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:03:00,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:03:00,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:00,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:03:00,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:03:00,626 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 532 out of 545 [2022-11-02 21:03:00,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 539 transitions, 1090 flow. Second operand has 10 states, 10 states have (on average 534.0) internal successors, (5340), 10 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:00,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:00,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 532 of 545 [2022-11-02 21:03:00,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:00,866 INFO L130 PetriNetUnfolder]: 1/549 cut-off events. [2022-11-02 21:03:00,866 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:03:00,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 549 events. 1/549 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 140 event pairs, 0 based on Foata normal form. 2/511 useless extension candidates. Maximal degree in co-relation 577. Up to 6 conditions per place. [2022-11-02 21:03:00,869 INFO L137 encePairwiseOnDemand]: 539/545 looper letters, 11 selfloop transitions, 9 changer transitions 0/549 dead transitions. [2022-11-02 21:03:00,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 549 transitions, 1152 flow [2022-11-02 21:03:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:03:00,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 21:03:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4810 transitions. [2022-11-02 21:03:00,878 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9806320081549439 [2022-11-02 21:03:00,878 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4810 transitions. [2022-11-02 21:03:00,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4810 transitions. [2022-11-02 21:03:00,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:00,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4810 transitions. [2022-11-02 21:03:00,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 534.4444444444445) internal successors, (4810), 9 states have internal predecessors, (4810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:00,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 545.0) internal successors, (5450), 10 states have internal predecessors, (5450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:00,905 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 545.0) internal successors, (5450), 10 states have internal predecessors, (5450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:00,905 INFO L175 Difference]: Start difference. First operand has 544 places, 539 transitions, 1090 flow. Second operand 9 states and 4810 transitions. [2022-11-02 21:03:00,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 549 transitions, 1152 flow [2022-11-02 21:03:00,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 549 transitions, 1150 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:03:00,917 INFO L231 Difference]: Finished difference. Result has 554 places, 545 transitions, 1138 flow [2022-11-02 21:03:00,918 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1138, PETRI_PLACES=554, PETRI_TRANSITIONS=545} [2022-11-02 21:03:00,920 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 11 predicate places. [2022-11-02 21:03:00,921 INFO L495 AbstractCegarLoop]: Abstraction has has 554 places, 545 transitions, 1138 flow [2022-11-02 21:03:00,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 534.0) internal successors, (5340), 10 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:00,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:00,925 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:00,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:03:01,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-02 21:03:01,143 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:01,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:01,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1931076000, now seen corresponding path program 2 times [2022-11-02 21:03:01,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:01,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624386450] [2022-11-02 21:03:01,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:01,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:01,371 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:01,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:01,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624386450] [2022-11-02 21:03:01,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624386450] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:03:01,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038205725] [2022-11-02 21:03:01,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:03:01,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:03:01,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:03:01,374 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:03:01,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:03:01,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 21:03:01,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:03:01,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:03:01,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:03:01,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 21:03:01,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:03:01,620 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 21:03:01,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:03:01,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:03:01,659 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:03:01,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 21:03:01,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:03:01,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:03:01,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:03:01,706 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:03:01,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 21:03:01,743 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-02 21:03:01,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:03:01,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038205725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:01,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:03:01,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-02 21:03:01,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989708269] [2022-11-02 21:03:01,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:01,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:03:01,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:01,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:03:01,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:03:01,749 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 545 [2022-11-02 21:03:01,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 545 transitions, 1138 flow. Second operand has 8 states, 8 states have (on average 253.375) internal successors, (2027), 8 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:01,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:01,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 545 [2022-11-02 21:03:01,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:03,219 INFO L130 PetriNetUnfolder]: 649/2373 cut-off events. [2022-11-02 21:03:03,220 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 21:03:03,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3986 conditions, 2373 events. 649/2373 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11463 event pairs, 648 based on Foata normal form. 0/2105 useless extension candidates. Maximal degree in co-relation 3979. Up to 1531 conditions per place. [2022-11-02 21:03:03,233 INFO L137 encePairwiseOnDemand]: 486/545 looper letters, 230 selfloop transitions, 53 changer transitions 0/539 dead transitions. [2022-11-02 21:03:03,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 539 transitions, 1692 flow [2022-11-02 21:03:03,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:03:03,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 21:03:03,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2557 transitions. [2022-11-02 21:03:03,239 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5213047910295616 [2022-11-02 21:03:03,239 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2557 transitions. [2022-11-02 21:03:03,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2557 transitions. [2022-11-02 21:03:03,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:03,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2557 transitions. [2022-11-02 21:03:03,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 284.1111111111111) internal successors, (2557), 9 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:03,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 545.0) internal successors, (5450), 10 states have internal predecessors, (5450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:03,259 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 545.0) internal successors, (5450), 10 states have internal predecessors, (5450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:03,259 INFO L175 Difference]: Start difference. First operand has 554 places, 545 transitions, 1138 flow. Second operand 9 states and 2557 transitions. [2022-11-02 21:03:03,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 556 places, 539 transitions, 1692 flow [2022-11-02 21:03:03,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 539 transitions, 1686 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-02 21:03:03,272 INFO L231 Difference]: Finished difference. Result has 555 places, 539 transitions, 1226 flow [2022-11-02 21:03:03,273 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1226, PETRI_PLACES=555, PETRI_TRANSITIONS=539} [2022-11-02 21:03:03,274 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 12 predicate places. [2022-11-02 21:03:03,274 INFO L495 AbstractCegarLoop]: Abstraction has has 555 places, 539 transitions, 1226 flow [2022-11-02 21:03:03,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 253.375) internal successors, (2027), 8 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:03,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:03,275 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:03,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:03:03,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:03:03,494 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:03,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:03,495 INFO L85 PathProgramCache]: Analyzing trace with hash -68153791, now seen corresponding path program 1 times [2022-11-02 21:03:03,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:03,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893153400] [2022-11-02 21:03:03,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:03,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:03,809 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:03,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:03,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893153400] [2022-11-02 21:03:03,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893153400] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:03:03,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402749603] [2022-11-02 21:03:03,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:03,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:03:03,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:03:03,812 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:03:03,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:03:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:03,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:03:03,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:03:04,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:04,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:03:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:04,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402749603] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:03:04,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:03:04,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-02 21:03:04,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64983129] [2022-11-02 21:03:04,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:03:04,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:03:04,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:04,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:03:04,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:03:04,170 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 532 out of 545 [2022-11-02 21:03:04,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 539 transitions, 1226 flow. Second operand has 18 states, 18 states have (on average 534.2222222222222) internal successors, (9616), 18 states have internal predecessors, (9616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:04,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:04,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 532 of 545 [2022-11-02 21:03:04,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:04,530 INFO L130 PetriNetUnfolder]: 1/563 cut-off events. [2022-11-02 21:03:04,530 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-02 21:03:04,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 563 events. 1/563 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 135 event pairs, 0 based on Foata normal form. 4/533 useless extension candidates. Maximal degree in co-relation 704. Up to 12 conditions per place. [2022-11-02 21:03:04,533 INFO L137 encePairwiseOnDemand]: 539/545 looper letters, 19 selfloop transitions, 21 changer transitions 0/563 dead transitions. [2022-11-02 21:03:04,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 563 transitions, 1406 flow [2022-11-02 21:03:04,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-02 21:03:04,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-02 21:03:04,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 11216 transitions. [2022-11-02 21:03:04,560 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9799912625600699 [2022-11-02 21:03:04,560 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 11216 transitions. [2022-11-02 21:03:04,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 11216 transitions. [2022-11-02 21:03:04,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:04,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 11216 transitions. [2022-11-02 21:03:04,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 534.0952380952381) internal successors, (11216), 21 states have internal predecessors, (11216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:04,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 545.0) internal successors, (11990), 22 states have internal predecessors, (11990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:04,665 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 545.0) internal successors, (11990), 22 states have internal predecessors, (11990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:04,665 INFO L175 Difference]: Start difference. First operand has 555 places, 539 transitions, 1226 flow. Second operand 21 states and 11216 transitions. [2022-11-02 21:03:04,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 563 transitions, 1406 flow [2022-11-02 21:03:04,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 563 transitions, 1300 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-02 21:03:04,678 INFO L231 Difference]: Finished difference. Result has 572 places, 552 transitions, 1250 flow [2022-11-02 21:03:04,679 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1250, PETRI_PLACES=572, PETRI_TRANSITIONS=552} [2022-11-02 21:03:04,680 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 29 predicate places. [2022-11-02 21:03:04,680 INFO L495 AbstractCegarLoop]: Abstraction has has 572 places, 552 transitions, 1250 flow [2022-11-02 21:03:04,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 534.2222222222222) internal successors, (9616), 18 states have internal predecessors, (9616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:04,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:04,684 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:04,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:03:04,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:03:04,910 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:04,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:04,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1626800321, now seen corresponding path program 2 times [2022-11-02 21:03:04,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:04,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756262690] [2022-11-02 21:03:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:04,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:05,352 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:05,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:05,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756262690] [2022-11-02 21:03:05,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756262690] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:03:05,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947012612] [2022-11-02 21:03:05,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:03:05,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:03:05,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:03:05,355 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:03:05,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 21:03:05,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 21:03:05,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:03:05,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 21:03:05,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:03:05,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 21:03:05,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 21:03:05,586 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:03:05,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 21:03:05,629 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:03:05,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 21:03:05,665 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-02 21:03:05,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:03:05,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947012612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:05,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:03:05,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-02 21:03:05,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280783460] [2022-11-02 21:03:05,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:05,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:05,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:05,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:05,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:03:05,673 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 545 [2022-11-02 21:03:05,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 552 transitions, 1250 flow. Second operand has 6 states, 6 states have (on average 266.5) internal successors, (1599), 6 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:05,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:05,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 545 [2022-11-02 21:03:05,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:07,203 INFO L130 PetriNetUnfolder]: 649/2387 cut-off events. [2022-11-02 21:03:07,204 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-02 21:03:07,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4045 conditions, 2387 events. 649/2387 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11505 event pairs, 648 based on Foata normal form. 0/2125 useless extension candidates. Maximal degree in co-relation 4033. Up to 1532 conditions per place. [2022-11-02 21:03:07,217 INFO L137 encePairwiseOnDemand]: 509/545 looper letters, 235 selfloop transitions, 30 changer transitions 0/546 dead transitions. [2022-11-02 21:03:07,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 546 transitions, 1768 flow [2022-11-02 21:03:07,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:03:07,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:03:07,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1855 transitions. [2022-11-02 21:03:07,222 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5672782874617737 [2022-11-02 21:03:07,223 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1855 transitions. [2022-11-02 21:03:07,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1855 transitions. [2022-11-02 21:03:07,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:07,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1855 transitions. [2022-11-02 21:03:07,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 309.1666666666667) internal successors, (1855), 6 states have internal predecessors, (1855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:07,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:07,238 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:07,239 INFO L175 Difference]: Start difference. First operand has 572 places, 552 transitions, 1250 flow. Second operand 6 states and 1855 transitions. [2022-11-02 21:03:07,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 546 transitions, 1768 flow [2022-11-02 21:03:07,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 546 transitions, 1744 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-02 21:03:07,259 INFO L231 Difference]: Finished difference. Result has 565 places, 546 transitions, 1274 flow [2022-11-02 21:03:07,260 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1214, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1274, PETRI_PLACES=565, PETRI_TRANSITIONS=546} [2022-11-02 21:03:07,262 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 22 predicate places. [2022-11-02 21:03:07,263 INFO L495 AbstractCegarLoop]: Abstraction has has 565 places, 546 transitions, 1274 flow [2022-11-02 21:03:07,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 266.5) internal successors, (1599), 6 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:07,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:07,264 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:07,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:03:07,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-02 21:03:07,478 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:07,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:07,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1669580051, now seen corresponding path program 1 times [2022-11-02 21:03:07,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:07,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956987102] [2022-11-02 21:03:07,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:07,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:08,006 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:08,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:08,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956987102] [2022-11-02 21:03:08,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956987102] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:03:08,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085305239] [2022-11-02 21:03:08,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:08,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:03:08,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:03:08,011 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:03:08,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 21:03:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:08,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 21:03:08,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:03:08,285 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:08,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:03:08,574 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:08,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085305239] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:03:08,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:03:08,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-02 21:03:08,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406460434] [2022-11-02 21:03:08,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:03:08,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-02 21:03:08,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:08,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-02 21:03:08,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:03:08,594 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 532 out of 545 [2022-11-02 21:03:08,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 546 transitions, 1274 flow. Second operand has 23 states, 23 states have (on average 534.3913043478261) internal successors, (12291), 23 states have internal predecessors, (12291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:08,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:08,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 532 of 545 [2022-11-02 21:03:08,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:09,182 INFO L130 PetriNetUnfolder]: 1/572 cut-off events. [2022-11-02 21:03:09,183 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-02 21:03:09,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 572 events. 1/572 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 121 event pairs, 0 based on Foata normal form. 3/547 useless extension candidates. Maximal degree in co-relation 763. Up to 16 conditions per place. [2022-11-02 21:03:09,185 INFO L137 encePairwiseOnDemand]: 539/545 looper letters, 25 selfloop transitions, 30 changer transitions 0/572 dead transitions. [2022-11-02 21:03:09,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 572 transitions, 1524 flow [2022-11-02 21:03:09,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-02 21:03:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-02 21:03:09,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 16018 transitions. [2022-11-02 21:03:09,216 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9796941896024465 [2022-11-02 21:03:09,216 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 16018 transitions. [2022-11-02 21:03:09,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 16018 transitions. [2022-11-02 21:03:09,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:09,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 16018 transitions. [2022-11-02 21:03:09,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 533.9333333333333) internal successors, (16018), 30 states have internal predecessors, (16018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:09,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 545.0) internal successors, (16895), 31 states have internal predecessors, (16895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:09,286 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 545.0) internal successors, (16895), 31 states have internal predecessors, (16895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:09,287 INFO L175 Difference]: Start difference. First operand has 565 places, 546 transitions, 1274 flow. Second operand 30 states and 16018 transitions. [2022-11-02 21:03:09,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 572 transitions, 1524 flow [2022-11-02 21:03:09,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 572 transitions, 1464 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:03:09,300 INFO L231 Difference]: Finished difference. Result has 593 places, 556 transitions, 1366 flow [2022-11-02 21:03:09,301 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1214, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1366, PETRI_PLACES=593, PETRI_TRANSITIONS=556} [2022-11-02 21:03:09,302 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 50 predicate places. [2022-11-02 21:03:09,302 INFO L495 AbstractCegarLoop]: Abstraction has has 593 places, 556 transitions, 1366 flow [2022-11-02 21:03:09,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 534.3913043478261) internal successors, (12291), 23 states have internal predecessors, (12291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:09,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:09,306 INFO L208 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] [2022-11-02 21:03:09,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:03:09,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76aabfb6-1d15-4ce2-b212-4904c395c9f5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 21:03:09,526 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:09,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:09,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1015990933, now seen corresponding path program 2 times [2022-11-02 21:03:09,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:09,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102585662] [2022-11-02 21:03:09,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:09,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:10,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:10,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102585662] [2022-11-02 21:03:10,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102585662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:10,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:10,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:10,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393374195] [2022-11-02 21:03:10,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:10,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:10,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:10,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:10,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:03:10,304 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 545 [2022-11-02 21:03:10,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 556 transitions, 1366 flow. Second operand has 6 states, 6 states have (on average 292.6666666666667) internal successors, (1756), 6 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:10,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:10,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 545 [2022-11-02 21:03:10,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:11,913 INFO L130 PetriNetUnfolder]: 778/2720 cut-off events. [2022-11-02 21:03:11,913 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-11-02 21:03:11,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4678 conditions, 2720 events. 778/2720 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13690 event pairs, 777 based on Foata normal form. 0/2435 useless extension candidates. Maximal degree in co-relation 4662. Up to 1789 conditions per place. [2022-11-02 21:03:11,935 INFO L137 encePairwiseOnDemand]: 539/545 looper letters, 234 selfloop transitions, 5 changer transitions 0/555 dead transitions. [2022-11-02 21:03:11,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 555 transitions, 1842 flow [2022-11-02 21:03:11,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:03:11,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:03:11,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1974 transitions. [2022-11-02 21:03:11,942 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6036697247706422 [2022-11-02 21:03:11,943 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1974 transitions. [2022-11-02 21:03:11,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1974 transitions. [2022-11-02 21:03:11,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:11,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1974 transitions. [2022-11-02 21:03:11,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 329.0) internal successors, (1974), 6 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:11,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:11,957 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:11,957 INFO L175 Difference]: Start difference. First operand has 593 places, 556 transitions, 1366 flow. Second operand 6 states and 1974 transitions. [2022-11-02 21:03:11,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 555 transitions, 1842 flow [2022-11-02 21:03:11,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 555 transitions, 1796 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-02 21:03:11,974 INFO L231 Difference]: Finished difference. Result has 579 places, 555 transitions, 1328 flow [2022-11-02 21:03:11,976 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=550, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=579, PETRI_TRANSITIONS=555} [2022-11-02 21:03:11,979 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 36 predicate places. [2022-11-02 21:03:11,980 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 555 transitions, 1328 flow [2022-11-02 21:03:11,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 292.6666666666667) internal successors, (1756), 6 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:11,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:11,981 INFO L208 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] [2022-11-02 21:03:11,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:03:11,981 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:11,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:11,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1549401803, now seen corresponding path program 1 times [2022-11-02 21:03:11,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:11,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167999024] [2022-11-02 21:03:11,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:11,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:13,082 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:13,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:13,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167999024] [2022-11-02 21:03:13,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167999024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:13,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:13,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:13,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505875534] [2022-11-02 21:03:13,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:13,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:13,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:13,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:13,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:03:13,087 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 545 [2022-11-02 21:03:13,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 555 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 297.1666666666667) internal successors, (1783), 6 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:13,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:13,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 545 [2022-11-02 21:03:13,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:15,753 INFO L130 PetriNetUnfolder]: 1388/4444 cut-off events. [2022-11-02 21:03:15,754 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-02 21:03:15,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7656 conditions, 4444 events. 1388/4444 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28919 event pairs, 110 based on Foata normal form. 0/3989 useless extension candidates. Maximal degree in co-relation 7639. Up to 1944 conditions per place. [2022-11-02 21:03:15,784 INFO L137 encePairwiseOnDemand]: 511/545 looper letters, 321 selfloop transitions, 79 changer transitions 0/718 dead transitions. [2022-11-02 21:03:15,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 718 transitions, 2454 flow [2022-11-02 21:03:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:03:15,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:03:15,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2149 transitions. [2022-11-02 21:03:15,790 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6571865443425077 [2022-11-02 21:03:15,790 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2149 transitions. [2022-11-02 21:03:15,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2149 transitions. [2022-11-02 21:03:15,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:15,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2149 transitions. [2022-11-02 21:03:15,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:15,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:15,801 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:15,802 INFO L175 Difference]: Start difference. First operand has 579 places, 555 transitions, 1328 flow. Second operand 6 states and 2149 transitions. [2022-11-02 21:03:15,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 582 places, 718 transitions, 2454 flow [2022-11-02 21:03:15,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 577 places, 718 transitions, 2444 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:03:15,817 INFO L231 Difference]: Finished difference. Result has 582 places, 621 transitions, 1808 flow [2022-11-02 21:03:15,818 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1314, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1808, PETRI_PLACES=582, PETRI_TRANSITIONS=621} [2022-11-02 21:03:15,819 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 39 predicate places. [2022-11-02 21:03:15,819 INFO L495 AbstractCegarLoop]: Abstraction has has 582 places, 621 transitions, 1808 flow [2022-11-02 21:03:15,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.1666666666667) internal successors, (1783), 6 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:15,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:15,821 INFO L208 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] [2022-11-02 21:03:15,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:03:15,821 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:15,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:15,822 INFO L85 PathProgramCache]: Analyzing trace with hash -636306673, now seen corresponding path program 1 times [2022-11-02 21:03:15,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:15,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069876940] [2022-11-02 21:03:15,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:15,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:16,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:16,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069876940] [2022-11-02 21:03:16,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069876940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:16,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:16,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:16,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967310550] [2022-11-02 21:03:16,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:16,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:16,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:16,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:16,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:03:16,648 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 545 [2022-11-02 21:03:16,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 582 places, 621 transitions, 1808 flow. Second operand has 6 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:16,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:16,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 545 [2022-11-02 21:03:16,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:18,808 INFO L130 PetriNetUnfolder]: 1207/4260 cut-off events. [2022-11-02 21:03:18,809 INFO L131 PetriNetUnfolder]: For 1416/1520 co-relation queries the response was YES. [2022-11-02 21:03:18,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8503 conditions, 4260 events. 1207/4260 cut-off events. For 1416/1520 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27425 event pairs, 807 based on Foata normal form. 0/3864 useless extension candidates. Maximal degree in co-relation 8482. Up to 2674 conditions per place. [2022-11-02 21:03:18,854 INFO L137 encePairwiseOnDemand]: 521/545 looper letters, 280 selfloop transitions, 20 changer transitions 0/617 dead transitions. [2022-11-02 21:03:18,855 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 617 transitions, 2400 flow [2022-11-02 21:03:18,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:03:18,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:03:18,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1976 transitions. [2022-11-02 21:03:18,861 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6042813455657492 [2022-11-02 21:03:18,861 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1976 transitions. [2022-11-02 21:03:18,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1976 transitions. [2022-11-02 21:03:18,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:18,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1976 transitions. [2022-11-02 21:03:18,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:18,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:18,875 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:18,876 INFO L175 Difference]: Start difference. First operand has 582 places, 621 transitions, 1808 flow. Second operand 6 states and 1976 transitions. [2022-11-02 21:03:18,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 617 transitions, 2400 flow [2022-11-02 21:03:18,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 617 transitions, 2400 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:03:18,897 INFO L231 Difference]: Finished difference. Result has 583 places, 617 transitions, 1840 flow [2022-11-02 21:03:18,898 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1800, PETRI_DIFFERENCE_MINUEND_PLACES=578, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=597, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1840, PETRI_PLACES=583, PETRI_TRANSITIONS=617} [2022-11-02 21:03:18,899 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 40 predicate places. [2022-11-02 21:03:18,899 INFO L495 AbstractCegarLoop]: Abstraction has has 583 places, 617 transitions, 1840 flow [2022-11-02 21:03:18,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:18,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:18,901 INFO L208 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] [2022-11-02 21:03:18,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:03:18,901 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:18,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:18,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1020979992, now seen corresponding path program 1 times [2022-11-02 21:03:18,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:18,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203854426] [2022-11-02 21:03:18,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:18,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:19,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:19,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203854426] [2022-11-02 21:03:19,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203854426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:19,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:19,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:19,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058991651] [2022-11-02 21:03:19,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:19,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:19,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:19,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:19,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:03:19,742 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 545 [2022-11-02 21:03:19,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 617 transitions, 1840 flow. Second operand has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:19,744 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:19,744 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 545 [2022-11-02 21:03:19,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:21,804 INFO L130 PetriNetUnfolder]: 1207/4256 cut-off events. [2022-11-02 21:03:21,804 INFO L131 PetriNetUnfolder]: For 1431/1535 co-relation queries the response was YES. [2022-11-02 21:03:21,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8524 conditions, 4256 events. 1207/4256 cut-off events. For 1431/1535 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27376 event pairs, 807 based on Foata normal form. 0/3864 useless extension candidates. Maximal degree in co-relation 8502. Up to 2682 conditions per place. [2022-11-02 21:03:21,837 INFO L137 encePairwiseOnDemand]: 521/545 looper letters, 284 selfloop transitions, 20 changer transitions 0/613 dead transitions. [2022-11-02 21:03:21,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 613 transitions, 2440 flow [2022-11-02 21:03:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:03:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:03:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1932 transitions. [2022-11-02 21:03:21,845 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5908256880733945 [2022-11-02 21:03:21,845 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1932 transitions. [2022-11-02 21:03:21,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1932 transitions. [2022-11-02 21:03:21,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:21,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1932 transitions. [2022-11-02 21:03:21,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 322.0) internal successors, (1932), 6 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:21,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:21,861 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:21,861 INFO L175 Difference]: Start difference. First operand has 583 places, 617 transitions, 1840 flow. Second operand 6 states and 1932 transitions. [2022-11-02 21:03:21,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 613 transitions, 2440 flow [2022-11-02 21:03:21,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 613 transitions, 2400 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:03:21,883 INFO L231 Difference]: Finished difference. Result has 579 places, 613 transitions, 1832 flow [2022-11-02 21:03:21,885 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1792, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1832, PETRI_PLACES=579, PETRI_TRANSITIONS=613} [2022-11-02 21:03:21,885 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 36 predicate places. [2022-11-02 21:03:21,885 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 613 transitions, 1832 flow [2022-11-02 21:03:21,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:21,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:21,887 INFO L208 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] [2022-11-02 21:03:21,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:03:21,887 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:21,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:21,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2093019947, now seen corresponding path program 1 times [2022-11-02 21:03:21,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:21,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958751580] [2022-11-02 21:03:21,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:21,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:22,916 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:22,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:22,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958751580] [2022-11-02 21:03:22,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958751580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:22,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:22,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:22,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328043228] [2022-11-02 21:03:22,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:22,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:22,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:22,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:22,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:03:22,921 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 545 [2022-11-02 21:03:22,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 613 transitions, 1832 flow. Second operand has 6 states, 6 states have (on average 290.3333333333333) internal successors, (1742), 6 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:22,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:22,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 545 [2022-11-02 21:03:22,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:24,737 INFO L130 PetriNetUnfolder]: 1207/4252 cut-off events. [2022-11-02 21:03:24,737 INFO L131 PetriNetUnfolder]: For 1424/1528 co-relation queries the response was YES. [2022-11-02 21:03:24,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8516 conditions, 4252 events. 1207/4252 cut-off events. For 1424/1528 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27357 event pairs, 807 based on Foata normal form. 0/3864 useless extension candidates. Maximal degree in co-relation 8494. Up to 2678 conditions per place. [2022-11-02 21:03:24,766 INFO L137 encePairwiseOnDemand]: 521/545 looper letters, 280 selfloop transitions, 20 changer transitions 0/609 dead transitions. [2022-11-02 21:03:24,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 609 transitions, 2424 flow [2022-11-02 21:03:24,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:03:24,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:03:24,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1928 transitions. [2022-11-02 21:03:24,769 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5896024464831804 [2022-11-02 21:03:24,770 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1928 transitions. [2022-11-02 21:03:24,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1928 transitions. [2022-11-02 21:03:24,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:24,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1928 transitions. [2022-11-02 21:03:24,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 321.3333333333333) internal successors, (1928), 6 states have internal predecessors, (1928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:24,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:24,779 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:24,779 INFO L175 Difference]: Start difference. First operand has 579 places, 613 transitions, 1832 flow. Second operand 6 states and 1928 transitions. [2022-11-02 21:03:24,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 609 transitions, 2424 flow [2022-11-02 21:03:24,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 609 transitions, 2384 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:03:24,796 INFO L231 Difference]: Finished difference. Result has 575 places, 609 transitions, 1824 flow [2022-11-02 21:03:24,798 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1784, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1824, PETRI_PLACES=575, PETRI_TRANSITIONS=609} [2022-11-02 21:03:24,798 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 32 predicate places. [2022-11-02 21:03:24,798 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 609 transitions, 1824 flow [2022-11-02 21:03:24,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 290.3333333333333) internal successors, (1742), 6 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:24,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:24,800 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:24,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:03:24,800 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:24,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:24,801 INFO L85 PathProgramCache]: Analyzing trace with hash 633636591, now seen corresponding path program 1 times [2022-11-02 21:03:24,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:24,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852340857] [2022-11-02 21:03:24,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:24,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:25,833 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:25,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:25,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852340857] [2022-11-02 21:03:25,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852340857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:25,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:25,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:25,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787857418] [2022-11-02 21:03:25,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:25,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:25,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:25,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:25,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:03:25,839 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 545 [2022-11-02 21:03:25,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 609 transitions, 1824 flow. Second operand has 6 states, 6 states have (on average 302.5) internal successors, (1815), 6 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:25,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:25,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 545 [2022-11-02 21:03:25,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:27,803 INFO L130 PetriNetUnfolder]: 1278/4386 cut-off events. [2022-11-02 21:03:27,803 INFO L131 PetriNetUnfolder]: For 1439/1551 co-relation queries the response was YES. [2022-11-02 21:03:27,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8814 conditions, 4386 events. 1278/4386 cut-off events. For 1439/1551 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 28274 event pairs, 874 based on Foata normal form. 0/3988 useless extension candidates. Maximal degree in co-relation 8792. Up to 2826 conditions per place. [2022-11-02 21:03:27,837 INFO L137 encePairwiseOnDemand]: 539/545 looper letters, 285 selfloop transitions, 5 changer transitions 0/608 dead transitions. [2022-11-02 21:03:27,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 608 transitions, 2402 flow [2022-11-02 21:03:27,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:03:27,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:03:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1969 transitions. [2022-11-02 21:03:27,844 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6021406727828746 [2022-11-02 21:03:27,844 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1969 transitions. [2022-11-02 21:03:27,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1969 transitions. [2022-11-02 21:03:27,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:27,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1969 transitions. [2022-11-02 21:03:27,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 328.1666666666667) internal successors, (1969), 6 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:27,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:27,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:27,853 INFO L175 Difference]: Start difference. First operand has 575 places, 609 transitions, 1824 flow. Second operand 6 states and 1969 transitions. [2022-11-02 21:03:27,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 608 transitions, 2402 flow [2022-11-02 21:03:27,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 608 transitions, 2362 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:03:27,872 INFO L231 Difference]: Finished difference. Result has 574 places, 608 transitions, 1792 flow [2022-11-02 21:03:27,873 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1782, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=603, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1792, PETRI_PLACES=574, PETRI_TRANSITIONS=608} [2022-11-02 21:03:27,874 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 31 predicate places. [2022-11-02 21:03:27,874 INFO L495 AbstractCegarLoop]: Abstraction has has 574 places, 608 transitions, 1792 flow [2022-11-02 21:03:27,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 302.5) internal successors, (1815), 6 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:27,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:27,876 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:27,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:03:27,876 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:27,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:27,877 INFO L85 PathProgramCache]: Analyzing trace with hash -348415598, now seen corresponding path program 1 times [2022-11-02 21:03:27,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:27,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106950384] [2022-11-02 21:03:27,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:27,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:28,811 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:28,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:28,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106950384] [2022-11-02 21:03:28,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106950384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:28,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:28,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:28,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492282096] [2022-11-02 21:03:28,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:28,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:28,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:28,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:28,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:03:28,817 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 545 [2022-11-02 21:03:28,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 608 transitions, 1792 flow. Second operand has 6 states, 6 states have (on average 307.0) internal successors, (1842), 6 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:28,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:28,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 545 [2022-11-02 21:03:28,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:30,647 INFO L130 PetriNetUnfolder]: 1278/4384 cut-off events. [2022-11-02 21:03:30,648 INFO L131 PetriNetUnfolder]: For 1436/1548 co-relation queries the response was YES. [2022-11-02 21:03:30,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8793 conditions, 4384 events. 1278/4384 cut-off events. For 1436/1548 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 28218 event pairs, 874 based on Foata normal form. 0/3988 useless extension candidates. Maximal degree in co-relation 8771. Up to 2807 conditions per place. [2022-11-02 21:03:30,693 INFO L137 encePairwiseOnDemand]: 533/545 looper letters, 276 selfloop transitions, 10 changer transitions 0/606 dead transitions. [2022-11-02 21:03:30,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 606 transitions, 2360 flow [2022-11-02 21:03:30,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:03:30,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:03:30,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1978 transitions. [2022-11-02 21:03:30,700 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6048929663608563 [2022-11-02 21:03:30,700 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1978 transitions. [2022-11-02 21:03:30,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1978 transitions. [2022-11-02 21:03:30,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:30,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1978 transitions. [2022-11-02 21:03:30,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 329.6666666666667) internal successors, (1978), 6 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:30,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:30,713 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:30,713 INFO L175 Difference]: Start difference. First operand has 574 places, 608 transitions, 1792 flow. Second operand 6 states and 1978 transitions. [2022-11-02 21:03:30,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 606 transitions, 2360 flow [2022-11-02 21:03:30,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 606 transitions, 2350 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:03:30,734 INFO L231 Difference]: Finished difference. Result has 572 places, 606 transitions, 1798 flow [2022-11-02 21:03:30,736 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1778, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=596, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1798, PETRI_PLACES=572, PETRI_TRANSITIONS=606} [2022-11-02 21:03:30,736 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 29 predicate places. [2022-11-02 21:03:30,737 INFO L495 AbstractCegarLoop]: Abstraction has has 572 places, 606 transitions, 1798 flow [2022-11-02 21:03:30,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.0) internal successors, (1842), 6 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:30,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:30,738 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:30,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:03:30,739 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:30,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:30,740 INFO L85 PathProgramCache]: Analyzing trace with hash -432432847, now seen corresponding path program 1 times [2022-11-02 21:03:30,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:30,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247157969] [2022-11-02 21:03:30,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:30,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:32,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:32,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247157969] [2022-11-02 21:03:32,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247157969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:32,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:32,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:32,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954737793] [2022-11-02 21:03:32,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:32,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:32,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:32,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:32,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:03:32,864 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 545 [2022-11-02 21:03:32,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 606 transitions, 1798 flow. Second operand has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:32,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:32,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 545 [2022-11-02 21:03:32,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:35,187 INFO L130 PetriNetUnfolder]: 1524/4875 cut-off events. [2022-11-02 21:03:35,187 INFO L131 PetriNetUnfolder]: For 1572/1692 co-relation queries the response was YES. [2022-11-02 21:03:35,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9899 conditions, 4875 events. 1524/4875 cut-off events. For 1572/1692 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 31939 event pairs, 654 based on Foata normal form. 16/4488 useless extension candidates. Maximal degree in co-relation 9877. Up to 2714 conditions per place. [2022-11-02 21:03:35,230 INFO L137 encePairwiseOnDemand]: 522/545 looper letters, 356 selfloop transitions, 130 changer transitions 0/815 dead transitions. [2022-11-02 21:03:35,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 815 transitions, 3564 flow [2022-11-02 21:03:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:03:35,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:03:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2171 transitions. [2022-11-02 21:03:35,236 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6639143730886851 [2022-11-02 21:03:35,236 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2171 transitions. [2022-11-02 21:03:35,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2171 transitions. [2022-11-02 21:03:35,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:35,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2171 transitions. [2022-11-02 21:03:35,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 361.8333333333333) internal successors, (2171), 6 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:35,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:35,249 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:35,250 INFO L175 Difference]: Start difference. First operand has 572 places, 606 transitions, 1798 flow. Second operand 6 states and 2171 transitions. [2022-11-02 21:03:35,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 815 transitions, 3564 flow [2022-11-02 21:03:35,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 815 transitions, 3544 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:03:35,276 INFO L231 Difference]: Finished difference. Result has 577 places, 735 transitions, 3006 flow [2022-11-02 21:03:35,277 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1778, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3006, PETRI_PLACES=577, PETRI_TRANSITIONS=735} [2022-11-02 21:03:35,277 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 34 predicate places. [2022-11-02 21:03:35,278 INFO L495 AbstractCegarLoop]: Abstraction has has 577 places, 735 transitions, 3006 flow [2022-11-02 21:03:35,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:35,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:35,279 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:35,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:03:35,279 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:35,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:35,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1733883780, now seen corresponding path program 1 times [2022-11-02 21:03:35,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:35,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143907444] [2022-11-02 21:03:35,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:35,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:37,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:37,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143907444] [2022-11-02 21:03:37,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143907444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:37,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:37,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:37,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976191100] [2022-11-02 21:03:37,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:37,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:37,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:37,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:37,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:03:37,436 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 545 [2022-11-02 21:03:37,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 735 transitions, 3006 flow. Second operand has 6 states, 6 states have (on average 327.0) internal successors, (1962), 6 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:37,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:37,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 545 [2022-11-02 21:03:37,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:40,037 INFO L130 PetriNetUnfolder]: 1637/5660 cut-off events. [2022-11-02 21:03:40,037 INFO L131 PetriNetUnfolder]: For 3875/4117 co-relation queries the response was YES. [2022-11-02 21:03:40,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12907 conditions, 5660 events. 1637/5660 cut-off events. For 3875/4117 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40672 event pairs, 523 based on Foata normal form. 8/5307 useless extension candidates. Maximal degree in co-relation 12881. Up to 2978 conditions per place. [2022-11-02 21:03:40,084 INFO L137 encePairwiseOnDemand]: 523/545 looper letters, 484 selfloop transitions, 129 changer transitions 5/943 dead transitions. [2022-11-02 21:03:40,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 943 transitions, 5280 flow [2022-11-02 21:03:40,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:03:40,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:03:40,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2150 transitions. [2022-11-02 21:03:40,090 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6574923547400612 [2022-11-02 21:03:40,090 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2150 transitions. [2022-11-02 21:03:40,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2150 transitions. [2022-11-02 21:03:40,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:40,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2150 transitions. [2022-11-02 21:03:40,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 358.3333333333333) internal successors, (2150), 6 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:40,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:40,103 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:40,104 INFO L175 Difference]: Start difference. First operand has 577 places, 735 transitions, 3006 flow. Second operand 6 states and 2150 transitions. [2022-11-02 21:03:40,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 582 places, 943 transitions, 5280 flow [2022-11-02 21:03:40,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 943 transitions, 5280 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:03:40,146 INFO L231 Difference]: Finished difference. Result has 587 places, 862 transitions, 4472 flow [2022-11-02 21:03:40,148 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=3006, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=735, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=699, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4472, PETRI_PLACES=587, PETRI_TRANSITIONS=862} [2022-11-02 21:03:40,148 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 44 predicate places. [2022-11-02 21:03:40,149 INFO L495 AbstractCegarLoop]: Abstraction has has 587 places, 862 transitions, 4472 flow [2022-11-02 21:03:40,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 327.0) internal successors, (1962), 6 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:40,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:40,150 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:40,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:03:40,150 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:40,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:40,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1297242102, now seen corresponding path program 1 times [2022-11-02 21:03:40,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:40,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394947792] [2022-11-02 21:03:40,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:40,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:41,774 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:41,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:41,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394947792] [2022-11-02 21:03:41,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394947792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:41,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:41,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:03:41,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800207343] [2022-11-02 21:03:41,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:41,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:03:41,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:41,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:03:41,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:03:41,780 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 545 [2022-11-02 21:03:41,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 862 transitions, 4472 flow. Second operand has 6 states, 6 states have (on average 325.6666666666667) internal successors, (1954), 6 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:41,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:41,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 545 [2022-11-02 21:03:41,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:43,884 INFO L130 PetriNetUnfolder]: 1747/5818 cut-off events. [2022-11-02 21:03:43,885 INFO L131 PetriNetUnfolder]: For 5722/5750 co-relation queries the response was YES. [2022-11-02 21:03:43,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15270 conditions, 5818 events. 1747/5818 cut-off events. For 5722/5750 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 40952 event pairs, 657 based on Foata normal form. 0/5513 useless extension candidates. Maximal degree in co-relation 15239. Up to 3624 conditions per place. [2022-11-02 21:03:43,930 INFO L137 encePairwiseOnDemand]: 526/545 looper letters, 550 selfloop transitions, 84 changer transitions 0/960 dead transitions. [2022-11-02 21:03:43,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 960 transitions, 6254 flow [2022-11-02 21:03:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:03:43,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:03:43,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2084 transitions. [2022-11-02 21:03:43,934 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.637308868501529 [2022-11-02 21:03:43,934 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2084 transitions. [2022-11-02 21:03:43,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2084 transitions. [2022-11-02 21:03:43,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:43,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2084 transitions. [2022-11-02 21:03:43,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 347.3333333333333) internal successors, (2084), 6 states have internal predecessors, (2084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:43,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:43,943 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 545.0) internal successors, (3815), 7 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:43,943 INFO L175 Difference]: Start difference. First operand has 587 places, 862 transitions, 4472 flow. Second operand 6 states and 2084 transitions. [2022-11-02 21:03:43,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 960 transitions, 6254 flow [2022-11-02 21:03:43,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 960 transitions, 6000 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-02 21:03:43,990 INFO L231 Difference]: Finished difference. Result has 596 places, 933 transitions, 5008 flow [2022-11-02 21:03:43,991 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=4224, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=862, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=814, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5008, PETRI_PLACES=596, PETRI_TRANSITIONS=933} [2022-11-02 21:03:43,991 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 53 predicate places. [2022-11-02 21:03:43,991 INFO L495 AbstractCegarLoop]: Abstraction has has 596 places, 933 transitions, 5008 flow [2022-11-02 21:03:43,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 325.6666666666667) internal successors, (1954), 6 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:43,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:43,992 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:43,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 21:03:43,993 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:43,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:43,993 INFO L85 PathProgramCache]: Analyzing trace with hash -289231345, now seen corresponding path program 1 times [2022-11-02 21:03:43,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:43,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135762514] [2022-11-02 21:03:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:43,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:49,612 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:49,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:49,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135762514] [2022-11-02 21:03:49,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135762514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:49,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:49,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 21:03:49,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691134874] [2022-11-02 21:03:49,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:49,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 21:03:49,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:49,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 21:03:49,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:03:49,620 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 545 [2022-11-02 21:03:49,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 933 transitions, 5008 flow. Second operand has 16 states, 16 states have (on average 264.8125) internal successors, (4237), 16 states have internal predecessors, (4237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:49,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:49,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 545 [2022-11-02 21:03:49,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:54,498 INFO L130 PetriNetUnfolder]: 2387/7108 cut-off events. [2022-11-02 21:03:54,499 INFO L131 PetriNetUnfolder]: For 8650/8727 co-relation queries the response was YES. [2022-11-02 21:03:54,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20916 conditions, 7108 events. 2387/7108 cut-off events. For 8650/8727 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 51863 event pairs, 393 based on Foata normal form. 79/6876 useless extension candidates. Maximal degree in co-relation 20880. Up to 2770 conditions per place. [2022-11-02 21:03:54,566 INFO L137 encePairwiseOnDemand]: 508/545 looper letters, 803 selfloop transitions, 189 changer transitions 6/1278 dead transitions. [2022-11-02 21:03:54,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 1278 transitions, 8924 flow [2022-11-02 21:03:54,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 21:03:54,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-02 21:03:54,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6613 transitions. [2022-11-02 21:03:54,591 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5055810397553517 [2022-11-02 21:03:54,591 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6613 transitions. [2022-11-02 21:03:54,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6613 transitions. [2022-11-02 21:03:54,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:54,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6613 transitions. [2022-11-02 21:03:54,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 275.5416666666667) internal successors, (6613), 24 states have internal predecessors, (6613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:54,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 545.0) internal successors, (13625), 25 states have internal predecessors, (13625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:54,626 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 545.0) internal successors, (13625), 25 states have internal predecessors, (13625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:54,626 INFO L175 Difference]: Start difference. First operand has 596 places, 933 transitions, 5008 flow. Second operand 24 states and 6613 transitions. [2022-11-02 21:03:54,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 1278 transitions, 8924 flow [2022-11-02 21:03:54,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 1278 transitions, 8852 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-02 21:03:54,973 INFO L231 Difference]: Finished difference. Result has 628 places, 989 transitions, 6020 flow [2022-11-02 21:03:54,974 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=4954, PETRI_DIFFERENCE_MINUEND_PLACES=596, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=777, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=6020, PETRI_PLACES=628, PETRI_TRANSITIONS=989} [2022-11-02 21:03:54,975 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 85 predicate places. [2022-11-02 21:03:54,975 INFO L495 AbstractCegarLoop]: Abstraction has has 628 places, 989 transitions, 6020 flow [2022-11-02 21:03:54,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 264.8125) internal successors, (4237), 16 states have internal predecessors, (4237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:54,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:54,977 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:54,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 21:03:54,979 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:03:54,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:54,980 INFO L85 PathProgramCache]: Analyzing trace with hash 712160801, now seen corresponding path program 2 times [2022-11-02 21:03:54,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:54,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726383875] [2022-11-02 21:03:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:54,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:59,719 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:03:59,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:59,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726383875] [2022-11-02 21:03:59,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726383875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:59,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:59,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-02 21:03:59,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587008779] [2022-11-02 21:03:59,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:59,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 21:03:59,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:59,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 21:03:59,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2022-11-02 21:03:59,727 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 545 [2022-11-02 21:03:59,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 628 places, 989 transitions, 6020 flow. Second operand has 19 states, 19 states have (on average 245.73684210526315) internal successors, (4669), 19 states have internal predecessors, (4669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:59,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:59,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 545 [2022-11-02 21:03:59,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:06,626 INFO L130 PetriNetUnfolder]: 3660/10881 cut-off events. [2022-11-02 21:04:06,626 INFO L131 PetriNetUnfolder]: For 18174/18286 co-relation queries the response was YES. [2022-11-02 21:04:06,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33619 conditions, 10881 events. 3660/10881 cut-off events. For 18174/18286 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 92063 event pairs, 992 based on Foata normal form. 109/10527 useless extension candidates. Maximal degree in co-relation 33573. Up to 3486 conditions per place. [2022-11-02 21:04:06,752 INFO L137 encePairwiseOnDemand]: 483/545 looper letters, 975 selfloop transitions, 308 changer transitions 6/1551 dead transitions. [2022-11-02 21:04:06,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 1551 transitions, 12303 flow [2022-11-02 21:04:06,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 21:04:06,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 21:04:06,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 5105 transitions. [2022-11-02 21:04:06,762 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.49299855142443266 [2022-11-02 21:04:06,763 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 5105 transitions. [2022-11-02 21:04:06,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 5105 transitions. [2022-11-02 21:04:06,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:06,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 5105 transitions. [2022-11-02 21:04:06,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 268.6842105263158) internal successors, (5105), 19 states have internal predecessors, (5105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:06,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 545.0) internal successors, (10900), 20 states have internal predecessors, (10900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:06,788 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 545.0) internal successors, (10900), 20 states have internal predecessors, (10900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:06,788 INFO L175 Difference]: Start difference. First operand has 628 places, 989 transitions, 6020 flow. Second operand 19 states and 5105 transitions. [2022-11-02 21:04:06,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 1551 transitions, 12303 flow [2022-11-02 21:04:06,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 640 places, 1551 transitions, 12236 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-02 21:04:06,946 INFO L231 Difference]: Finished difference. Result has 649 places, 1106 transitions, 8483 flow [2022-11-02 21:04:06,947 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=5978, PETRI_DIFFERENCE_MINUEND_PLACES=622, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=989, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=703, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=8483, PETRI_PLACES=649, PETRI_TRANSITIONS=1106} [2022-11-02 21:04:06,948 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 106 predicate places. [2022-11-02 21:04:06,948 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 1106 transitions, 8483 flow [2022-11-02 21:04:06,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 245.73684210526315) internal successors, (4669), 19 states have internal predecessors, (4669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:06,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:06,950 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:06,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 21:04:06,950 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:04:06,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:06,951 INFO L85 PathProgramCache]: Analyzing trace with hash -463077563, now seen corresponding path program 3 times [2022-11-02 21:04:06,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:06,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977319323] [2022-11-02 21:04:06,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:06,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:04:12,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:12,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977319323] [2022-11-02 21:04:12,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977319323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:12,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:12,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-02 21:04:12,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954788744] [2022-11-02 21:04:12,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:12,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-02 21:04:12,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:12,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-02 21:04:12,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2022-11-02 21:04:12,200 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 545 [2022-11-02 21:04:12,204 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 1106 transitions, 8483 flow. Second operand has 28 states, 28 states have (on average 204.28571428571428) internal successors, (5720), 28 states have internal predecessors, (5720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:12,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:12,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 545 [2022-11-02 21:04:12,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:25,554 INFO L130 PetriNetUnfolder]: 6649/18704 cut-off events. [2022-11-02 21:04:25,554 INFO L131 PetriNetUnfolder]: For 41884/42017 co-relation queries the response was YES. [2022-11-02 21:04:25,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60568 conditions, 18704 events. 6649/18704 cut-off events. For 41884/42017 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 177772 event pairs, 1480 based on Foata normal form. 115/18023 useless extension candidates. Maximal degree in co-relation 60513. Up to 5595 conditions per place. [2022-11-02 21:04:25,745 INFO L137 encePairwiseOnDemand]: 465/545 looper letters, 1262 selfloop transitions, 465 changer transitions 5/1955 dead transitions. [2022-11-02 21:04:25,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 700 places, 1955 transitions, 18965 flow [2022-11-02 21:04:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-02 21:04:25,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-11-02 21:04:25,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 10935 transitions. [2022-11-02 21:04:25,761 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.3858503881439661 [2022-11-02 21:04:25,761 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 10935 transitions. [2022-11-02 21:04:25,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 10935 transitions. [2022-11-02 21:04:25,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:25,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 10935 transitions. [2022-11-02 21:04:25,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 210.28846153846155) internal successors, (10935), 52 states have internal predecessors, (10935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:25,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 545.0) internal successors, (28885), 53 states have internal predecessors, (28885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:25,811 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 545.0) internal successors, (28885), 53 states have internal predecessors, (28885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:25,811 INFO L175 Difference]: Start difference. First operand has 649 places, 1106 transitions, 8483 flow. Second operand 52 states and 10935 transitions. [2022-11-02 21:04:25,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 700 places, 1955 transitions, 18965 flow [2022-11-02 21:04:26,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 691 places, 1955 transitions, 18772 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-11-02 21:04:26,051 INFO L231 Difference]: Finished difference. Result has 705 places, 1336 transitions, 13094 flow [2022-11-02 21:04:26,052 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=8334, PETRI_DIFFERENCE_MINUEND_PLACES=640, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=725, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=13094, PETRI_PLACES=705, PETRI_TRANSITIONS=1336} [2022-11-02 21:04:26,052 INFO L287 CegarLoopForPetriNet]: 543 programPoint places, 162 predicate places. [2022-11-02 21:04:26,052 INFO L495 AbstractCegarLoop]: Abstraction has has 705 places, 1336 transitions, 13094 flow [2022-11-02 21:04:26,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 204.28571428571428) internal successors, (5720), 28 states have internal predecessors, (5720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:26,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:26,054 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:26,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 21:04:26,054 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:04:26,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:26,055 INFO L85 PathProgramCache]: Analyzing trace with hash 2079261487, now seen corresponding path program 4 times [2022-11-02 21:04:26,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:26,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354533531] [2022-11-02 21:04:26,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:26,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:30,003 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:04:30,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:30,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354533531] [2022-11-02 21:04:30,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354533531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:30,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:30,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 21:04:30,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102471454] [2022-11-02 21:04:30,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:30,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 21:04:30,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:30,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 21:04:30,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:04:30,013 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 545 [2022-11-02 21:04:30,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 705 places, 1336 transitions, 13094 flow. Second operand has 16 states, 16 states have (on average 264.8125) internal successors, (4237), 16 states have internal predecessors, (4237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:30,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:30,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 545 [2022-11-02 21:04:30,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand