./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c --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_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/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_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/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_02c9a69f-0471-4019-a93c-1117aa5d5ec1/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 b699de581afb3d801299d89a35eee78f9e3cb86ad1a23fab537b92eb394c5e62 --- 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 20:36:52,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:36:52,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:36:52,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:36:52,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:36:52,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:36:52,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:36:52,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:36:52,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:36:52,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:36:52,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:36:52,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:36:52,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:36:52,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:36:52,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:36:52,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:36:52,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:36:52,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:36:52,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:36:52,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:36:52,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:36:52,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:36:52,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:36:52,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:36:52,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:36:52,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:36:52,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:36:52,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:36:52,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:36:52,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:36:52,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:36:52,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:36:52,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:36:52,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:36:52,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:36:52,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:36:52,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:36:52,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:36:52,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:36:52,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:36:52,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:36:52,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:36:52,635 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:36:52,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:36:52,636 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:36:52,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:36:52,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:36:52,637 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:36:52,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:36:52,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:36:52,639 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:36:52,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:36:52,640 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:36:52,640 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:36:52,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:36:52,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:36:52,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:36:52,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:36:52,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:36:52,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:36:52,642 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:36:52,643 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:36:52,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:36:52,643 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:36:52,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:36:52,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:36:52,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:36:52,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:36:52,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:36:52,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:36:52,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:36:52,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:36:52,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:36:52,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:36:52,647 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:36:52,647 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:36:52,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:36:52,648 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_02c9a69f-0471-4019-a93c-1117aa5d5ec1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b699de581afb3d801299d89a35eee78f9e3cb86ad1a23fab537b92eb394c5e62 [2022-11-02 20:36:52,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:36:53,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:36:53,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:36:53,044 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:36:53,045 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:36:53,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c [2022-11-02 20:36:53,164 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/data/8ece38e38/0f0234a1be7348bd951306580f227231/FLAGb3cfceb92 [2022-11-02 20:36:53,845 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:36:53,845 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c [2022-11-02 20:36:53,862 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/data/8ece38e38/0f0234a1be7348bd951306580f227231/FLAGb3cfceb92 [2022-11-02 20:36:54,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/data/8ece38e38/0f0234a1be7348bd951306580f227231 [2022-11-02 20:36:54,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:36:54,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:36:54,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:36:54,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:36:54,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:36:54,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4599874a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54, skipping insertion in model container [2022-11-02 20:36:54,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:36:54,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:36:54,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c[2856,2869] [2022-11-02 20:36:54,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:36:54,591 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:36:54,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c[2856,2869] [2022-11-02 20:36:54,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:36:54,696 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:36:54,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54 WrapperNode [2022-11-02 20:36:54,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:36:54,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:36:54,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:36:54,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:36:54,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,784 INFO L138 Inliner]: procedures = 22, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 112 [2022-11-02 20:36:54,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:36:54,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:36:54,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:36:54,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:36:54,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,823 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:36:54,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:36:54,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:36:54,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:36:54,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (1/1) ... [2022-11-02 20:36:54,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:36:54,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:54,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:36:54,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:36:54,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:36:54,926 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:36:54,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:36:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:36:54,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:36:54,928 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:36:54,928 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:36:54,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:36:54,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:36:54,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:36:54,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:36:54,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:36:54,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:36:54,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:36:54,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:36:54,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:36:54,933 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 20:36:55,066 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:36:55,069 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:36:55,842 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:36:55,950 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:36:55,951 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 20:36:55,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:55 BoogieIcfgContainer [2022-11-02 20:36:55,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:36:55,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:36:55,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:36:55,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:36:55,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:36:54" (1/3) ... [2022-11-02 20:36:55,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5633f71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:55, skipping insertion in model container [2022-11-02 20:36:55,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:54" (2/3) ... [2022-11-02 20:36:55,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5633f71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:55, skipping insertion in model container [2022-11-02 20:36:55,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:55" (3/3) ... [2022-11-02 20:36:55,981 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2022-11-02 20:36:55,993 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:36:56,006 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:36:56,007 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2022-11-02 20:36:56,007 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:36:56,178 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 20:36:56,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 257 transitions, 538 flow [2022-11-02 20:36:56,460 INFO L130 PetriNetUnfolder]: 16/254 cut-off events. [2022-11-02 20:36:56,460 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:36:56,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 254 events. 16/254 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 508 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 163. Up to 4 conditions per place. [2022-11-02 20:36:56,474 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 257 transitions, 538 flow [2022-11-02 20:36:56,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 234 transitions, 486 flow [2022-11-02 20:36:56,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:36:56,531 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;@4edbd473, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:36:56,532 INFO L358 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2022-11-02 20:36:56,548 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-02 20:36:56,550 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:36:56,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:56,551 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] [2022-11-02 20:36:56,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:36:56,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:56,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1347462981, now seen corresponding path program 1 times [2022-11-02 20:36:56,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:56,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946486040] [2022-11-02 20:36:56,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:56,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:56,943 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 20:36:56,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:56,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946486040] [2022-11-02 20:36:56,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946486040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:56,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:56,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:36:56,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245219327] [2022-11-02 20:36:56,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:56,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:56,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:57,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:57,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:57,021 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 257 [2022-11-02 20:36:57,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 234 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 20:36:57,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:57,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 257 [2022-11-02 20:36:57,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:57,582 INFO L130 PetriNetUnfolder]: 256/1071 cut-off events. [2022-11-02 20:36:57,583 INFO L131 PetriNetUnfolder]: For 69/75 co-relation queries the response was YES. [2022-11-02 20:36:57,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1472 conditions, 1071 events. 256/1071 cut-off events. For 69/75 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6915 event pairs, 111 based on Foata normal form. 82/920 useless extension candidates. Maximal degree in co-relation 1258. Up to 302 conditions per place. [2022-11-02 20:36:57,613 INFO L137 encePairwiseOnDemand]: 239/257 looper letters, 27 selfloop transitions, 2 changer transitions 0/218 dead transitions. [2022-11-02 20:36:57,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 218 transitions, 512 flow [2022-11-02 20:36:57,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:36:57,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:36:57,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2022-11-02 20:36:57,645 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8754863813229572 [2022-11-02 20:36:57,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 675 transitions. [2022-11-02 20:36:57,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 675 transitions. [2022-11-02 20:36:57,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:57,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 675 transitions. [2022-11-02 20:36:57,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 225.0) internal successors, (675), 3 states have internal predecessors, (675), 0 states have call successors, (0), 0 states 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 20:36:57,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:57,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:57,683 INFO L175 Difference]: Start difference. First operand has 229 places, 234 transitions, 486 flow. Second operand 3 states and 675 transitions. [2022-11-02 20:36:57,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 218 transitions, 512 flow [2022-11-02 20:36:57,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 218 transitions, 500 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 20:36:57,699 INFO L231 Difference]: Finished difference. Result has 212 places, 218 transitions, 446 flow [2022-11-02 20:36:57,702 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=446, PETRI_PLACES=212, PETRI_TRANSITIONS=218} [2022-11-02 20:36:57,708 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -17 predicate places. [2022-11-02 20:36:57,708 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 218 transitions, 446 flow [2022-11-02 20:36:57,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 20:36:57,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:57,710 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] [2022-11-02 20:36:57,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:36:57,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:36:57,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:57,711 INFO L85 PathProgramCache]: Analyzing trace with hash -161763097, now seen corresponding path program 1 times [2022-11-02 20:36:57,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:57,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852979428] [2022-11-02 20:36:57,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:57,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:57,880 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 20:36:57,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:57,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852979428] [2022-11-02 20:36:57,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852979428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:57,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:57,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:36:57,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062605142] [2022-11-02 20:36:57,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:57,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:57,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:57,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:57,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:57,886 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 257 [2022-11-02 20:36:57,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 218 transitions, 446 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 20:36:57,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:57,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 257 [2022-11-02 20:36:57,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:58,211 INFO L130 PetriNetUnfolder]: 292/951 cut-off events. [2022-11-02 20:36:58,212 INFO L131 PetriNetUnfolder]: For 31/36 co-relation queries the response was YES. [2022-11-02 20:36:58,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1338 conditions, 951 events. 292/951 cut-off events. For 31/36 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5417 event pairs, 135 based on Foata normal form. 0/763 useless extension candidates. Maximal degree in co-relation 1305. Up to 350 conditions per place. [2022-11-02 20:36:58,235 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 27 selfloop transitions, 2 changer transitions 0/217 dead transitions. [2022-11-02 20:36:58,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 217 transitions, 502 flow [2022-11-02 20:36:58,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:36:58,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:36:58,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 660 transitions. [2022-11-02 20:36:58,240 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8560311284046692 [2022-11-02 20:36:58,240 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 660 transitions. [2022-11-02 20:36:58,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 660 transitions. [2022-11-02 20:36:58,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:58,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 660 transitions. [2022-11-02 20:36:58,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states 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 20:36:58,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:58,248 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:58,248 INFO L175 Difference]: Start difference. First operand has 212 places, 218 transitions, 446 flow. Second operand 3 states and 660 transitions. [2022-11-02 20:36:58,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 217 transitions, 502 flow [2022-11-02 20:36:58,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 217 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:36:58,264 INFO L231 Difference]: Finished difference. Result has 211 places, 217 transitions, 444 flow [2022-11-02 20:36:58,265 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=211, PETRI_TRANSITIONS=217} [2022-11-02 20:36:58,266 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -18 predicate places. [2022-11-02 20:36:58,267 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 217 transitions, 444 flow [2022-11-02 20:36:58,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 20:36:58,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:58,268 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] [2022-11-02 20:36:58,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:36:58,269 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:36:58,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:58,270 INFO L85 PathProgramCache]: Analyzing trace with hash -855861972, now seen corresponding path program 1 times [2022-11-02 20:36:58,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:58,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921751633] [2022-11-02 20:36:58,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:58,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:58,396 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 20:36:58,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:58,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921751633] [2022-11-02 20:36:58,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921751633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:58,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:58,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:36:58,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563405148] [2022-11-02 20:36:58,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:58,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:58,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:58,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:58,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:58,401 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 257 [2022-11-02 20:36:58,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 217 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 20:36:58,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:58,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 257 [2022-11-02 20:36:58,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:58,644 INFO L130 PetriNetUnfolder]: 223/689 cut-off events. [2022-11-02 20:36:58,644 INFO L131 PetriNetUnfolder]: For 43/47 co-relation queries the response was YES. [2022-11-02 20:36:58,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 689 events. 223/689 cut-off events. For 43/47 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3648 event pairs, 111 based on Foata normal form. 0/567 useless extension candidates. Maximal degree in co-relation 966. Up to 302 conditions per place. [2022-11-02 20:36:58,660 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 27 selfloop transitions, 2 changer transitions 0/216 dead transitions. [2022-11-02 20:36:58,660 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 216 transitions, 500 flow [2022-11-02 20:36:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:36:58,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:36:58,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 660 transitions. [2022-11-02 20:36:58,663 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8560311284046692 [2022-11-02 20:36:58,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 660 transitions. [2022-11-02 20:36:58,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 660 transitions. [2022-11-02 20:36:58,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:58,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 660 transitions. [2022-11-02 20:36:58,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states 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 20:36:58,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:58,671 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:58,671 INFO L175 Difference]: Start difference. First operand has 211 places, 217 transitions, 444 flow. Second operand 3 states and 660 transitions. [2022-11-02 20:36:58,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 216 transitions, 500 flow [2022-11-02 20:36:58,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 216 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:36:58,678 INFO L231 Difference]: Finished difference. Result has 210 places, 216 transitions, 442 flow [2022-11-02 20:36:58,679 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=442, PETRI_PLACES=210, PETRI_TRANSITIONS=216} [2022-11-02 20:36:58,680 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -19 predicate places. [2022-11-02 20:36:58,680 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 216 transitions, 442 flow [2022-11-02 20:36:58,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 20:36:58,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:58,681 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] [2022-11-02 20:36:58,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:36:58,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:36:58,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:58,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1749670232, now seen corresponding path program 1 times [2022-11-02 20:36:58,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:58,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597747061] [2022-11-02 20:36:58,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:58,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:58,735 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 20:36:58,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:58,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597747061] [2022-11-02 20:36:58,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597747061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:58,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:58,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:36:58,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190166487] [2022-11-02 20:36:58,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:58,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:58,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:58,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:58,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:58,740 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 257 [2022-11-02 20:36:58,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 216 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states 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 20:36:58,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:58,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 257 [2022-11-02 20:36:58,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:58,979 INFO L130 PetriNetUnfolder]: 159/815 cut-off events. [2022-11-02 20:36:58,979 INFO L131 PetriNetUnfolder]: For 7/13 co-relation queries the response was YES. [2022-11-02 20:36:58,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 815 events. 159/815 cut-off events. For 7/13 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4656 event pairs, 63 based on Foata normal form. 0/634 useless extension candidates. Maximal degree in co-relation 985. Up to 182 conditions per place. [2022-11-02 20:36:58,998 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 21 selfloop transitions, 2 changer transitions 0/215 dead transitions. [2022-11-02 20:36:58,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 215 transitions, 486 flow [2022-11-02 20:36:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:36:58,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:36:59,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2022-11-02 20:36:59,001 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8715953307392996 [2022-11-02 20:36:59,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 672 transitions. [2022-11-02 20:36:59,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 672 transitions. [2022-11-02 20:36:59,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:59,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 672 transitions. [2022-11-02 20:36:59,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states 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 20:36:59,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:59,009 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:59,009 INFO L175 Difference]: Start difference. First operand has 210 places, 216 transitions, 442 flow. Second operand 3 states and 672 transitions. [2022-11-02 20:36:59,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 215 transitions, 486 flow [2022-11-02 20:36:59,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 215 transitions, 482 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:36:59,016 INFO L231 Difference]: Finished difference. Result has 209 places, 215 transitions, 440 flow [2022-11-02 20:36:59,016 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=440, PETRI_PLACES=209, PETRI_TRANSITIONS=215} [2022-11-02 20:36:59,017 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -20 predicate places. [2022-11-02 20:36:59,018 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 215 transitions, 440 flow [2022-11-02 20:36:59,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states 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 20:36:59,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:59,019 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] [2022-11-02 20:36:59,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:36:59,020 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:36:59,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:59,020 INFO L85 PathProgramCache]: Analyzing trace with hash -414604538, now seen corresponding path program 1 times [2022-11-02 20:36:59,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:59,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841009850] [2022-11-02 20:36:59,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:59,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:59,075 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 20:36:59,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:59,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841009850] [2022-11-02 20:36:59,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841009850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:59,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:59,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:36:59,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083228894] [2022-11-02 20:36:59,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:59,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:59,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:59,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:59,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:59,087 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 257 [2022-11-02 20:36:59,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 215 transitions, 440 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states 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 20:36:59,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:59,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 257 [2022-11-02 20:36:59,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:59,342 INFO L130 PetriNetUnfolder]: 185/797 cut-off events. [2022-11-02 20:36:59,343 INFO L131 PetriNetUnfolder]: For 19/25 co-relation queries the response was YES. [2022-11-02 20:36:59,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 797 events. 185/797 cut-off events. For 19/25 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4328 event pairs, 75 based on Foata normal form. 0/621 useless extension candidates. Maximal degree in co-relation 980. Up to 206 conditions per place. [2022-11-02 20:36:59,359 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 21 selfloop transitions, 2 changer transitions 0/214 dead transitions. [2022-11-02 20:36:59,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 214 transitions, 484 flow [2022-11-02 20:36:59,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:36:59,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:36:59,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2022-11-02 20:36:59,362 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8715953307392996 [2022-11-02 20:36:59,362 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 672 transitions. [2022-11-02 20:36:59,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 672 transitions. [2022-11-02 20:36:59,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:59,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 672 transitions. [2022-11-02 20:36:59,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states 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 20:36:59,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:59,369 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:59,369 INFO L175 Difference]: Start difference. First operand has 209 places, 215 transitions, 440 flow. Second operand 3 states and 672 transitions. [2022-11-02 20:36:59,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 214 transitions, 484 flow [2022-11-02 20:36:59,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 214 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:36:59,377 INFO L231 Difference]: Finished difference. Result has 208 places, 214 transitions, 438 flow [2022-11-02 20:36:59,377 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=208, PETRI_TRANSITIONS=214} [2022-11-02 20:36:59,382 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -21 predicate places. [2022-11-02 20:36:59,383 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 214 transitions, 438 flow [2022-11-02 20:36:59,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states 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 20:36:59,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:59,384 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] [2022-11-02 20:36:59,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:36:59,385 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:36:59,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:59,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1849409569, now seen corresponding path program 1 times [2022-11-02 20:36:59,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:59,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58773213] [2022-11-02 20:36:59,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:59,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:59,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:59,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:59,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58773213] [2022-11-02 20:36:59,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58773213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:59,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:59,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:36:59,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6748408] [2022-11-02 20:36:59,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:59,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:59,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:59,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:59,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:59,482 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 257 [2022-11-02 20:36:59,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 214 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states 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 20:36:59,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:59,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 257 [2022-11-02 20:36:59,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:59,678 INFO L130 PetriNetUnfolder]: 145/629 cut-off events. [2022-11-02 20:36:59,678 INFO L131 PetriNetUnfolder]: For 25/29 co-relation queries the response was YES. [2022-11-02 20:36:59,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 629 events. 145/629 cut-off events. For 25/29 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3326 event pairs, 63 based on Foata normal form. 0/504 useless extension candidates. Maximal degree in co-relation 771. Up to 182 conditions per place. [2022-11-02 20:36:59,694 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 21 selfloop transitions, 2 changer transitions 0/213 dead transitions. [2022-11-02 20:36:59,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 213 transitions, 482 flow [2022-11-02 20:36:59,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:36:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:36:59,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2022-11-02 20:36:59,697 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8715953307392996 [2022-11-02 20:36:59,698 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 672 transitions. [2022-11-02 20:36:59,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 672 transitions. [2022-11-02 20:36:59,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:59,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 672 transitions. [2022-11-02 20:36:59,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states 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 20:36:59,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:59,731 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:36:59,732 INFO L175 Difference]: Start difference. First operand has 208 places, 214 transitions, 438 flow. Second operand 3 states and 672 transitions. [2022-11-02 20:36:59,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 213 transitions, 482 flow [2022-11-02 20:36:59,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 213 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:36:59,738 INFO L231 Difference]: Finished difference. Result has 207 places, 213 transitions, 436 flow [2022-11-02 20:36:59,739 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=207, PETRI_TRANSITIONS=213} [2022-11-02 20:36:59,742 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -22 predicate places. [2022-11-02 20:36:59,742 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 213 transitions, 436 flow [2022-11-02 20:36:59,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states 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 20:36:59,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:59,745 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] [2022-11-02 20:36:59,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:36:59,745 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:36:59,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:59,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1761092144, now seen corresponding path program 1 times [2022-11-02 20:36:59,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:59,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528259713] [2022-11-02 20:36:59,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:59,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:59,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:59,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:59,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528259713] [2022-11-02 20:36:59,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528259713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:59,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:59,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:36:59,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106816975] [2022-11-02 20:36:59,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:59,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:59,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:59,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:59,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:59,877 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 257 [2022-11-02 20:36:59,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 213 transitions, 436 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states 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 20:36:59,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:59,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 257 [2022-11-02 20:36:59,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:00,086 INFO L130 PetriNetUnfolder]: 135/662 cut-off events. [2022-11-02 20:37:00,087 INFO L131 PetriNetUnfolder]: For 7/17 co-relation queries the response was YES. [2022-11-02 20:37:00,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 662 events. 135/662 cut-off events. For 7/17 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3421 event pairs, 26 based on Foata normal form. 2/538 useless extension candidates. Maximal degree in co-relation 797. Up to 91 conditions per place. [2022-11-02 20:37:00,102 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 24 selfloop transitions, 2 changer transitions 0/219 dead transitions. [2022-11-02 20:37:00,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 219 transitions, 502 flow [2022-11-02 20:37:00,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:00,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:00,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 684 transitions. [2022-11-02 20:37:00,107 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8871595330739299 [2022-11-02 20:37:00,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 684 transitions. [2022-11-02 20:37:00,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 684 transitions. [2022-11-02 20:37:00,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:00,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 684 transitions. [2022-11-02 20:37:00,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states 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 20:37:00,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:00,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:00,114 INFO L175 Difference]: Start difference. First operand has 207 places, 213 transitions, 436 flow. Second operand 3 states and 684 transitions. [2022-11-02 20:37:00,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 219 transitions, 502 flow [2022-11-02 20:37:00,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 219 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:37:00,121 INFO L231 Difference]: Finished difference. Result has 207 places, 213 transitions, 440 flow [2022-11-02 20:37:00,122 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=440, PETRI_PLACES=207, PETRI_TRANSITIONS=213} [2022-11-02 20:37:00,123 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -22 predicate places. [2022-11-02 20:37:00,124 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 213 transitions, 440 flow [2022-11-02 20:37:00,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states 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 20:37:00,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:00,125 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 20:37:00,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:37:00,126 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:00,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:00,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1671242356, now seen corresponding path program 1 times [2022-11-02 20:37:00,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:00,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215038962] [2022-11-02 20:37:00,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:00,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:00,200 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 20:37:00,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:00,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215038962] [2022-11-02 20:37:00,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215038962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:00,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:00,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:00,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178442031] [2022-11-02 20:37:00,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:00,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:00,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:00,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:00,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:00,206 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 257 [2022-11-02 20:37:00,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 213 transitions, 440 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states 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 20:37:00,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:00,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 257 [2022-11-02 20:37:00,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:00,466 INFO L130 PetriNetUnfolder]: 206/822 cut-off events. [2022-11-02 20:37:00,466 INFO L131 PetriNetUnfolder]: For 21/30 co-relation queries the response was YES. [2022-11-02 20:37:00,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 822 events. 206/822 cut-off events. For 21/30 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4484 event pairs, 31 based on Foata normal form. 2/693 useless extension candidates. Maximal degree in co-relation 1031. Up to 171 conditions per place. [2022-11-02 20:37:00,494 INFO L137 encePairwiseOnDemand]: 251/257 looper letters, 30 selfloop transitions, 3 changer transitions 0/220 dead transitions. [2022-11-02 20:37:00,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 220 transitions, 525 flow [2022-11-02 20:37:00,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:00,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2022-11-02 20:37:00,498 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8754863813229572 [2022-11-02 20:37:00,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 675 transitions. [2022-11-02 20:37:00,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 675 transitions. [2022-11-02 20:37:00,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:00,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 675 transitions. [2022-11-02 20:37:00,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 225.0) internal successors, (675), 3 states have internal predecessors, (675), 0 states have call successors, (0), 0 states 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 20:37:00,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:00,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:00,510 INFO L175 Difference]: Start difference. First operand has 207 places, 213 transitions, 440 flow. Second operand 3 states and 675 transitions. [2022-11-02 20:37:00,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 220 transitions, 525 flow [2022-11-02 20:37:00,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 220 transitions, 523 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:37:00,518 INFO L231 Difference]: Finished difference. Result has 206 places, 211 transitions, 445 flow [2022-11-02 20:37:00,519 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=445, PETRI_PLACES=206, PETRI_TRANSITIONS=211} [2022-11-02 20:37:00,523 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -23 predicate places. [2022-11-02 20:37:00,524 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 211 transitions, 445 flow [2022-11-02 20:37:00,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states 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 20:37:00,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:00,525 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, 1, 1, 1] [2022-11-02 20:37:00,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:37:00,526 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:00,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:00,527 INFO L85 PathProgramCache]: Analyzing trace with hash 214228203, now seen corresponding path program 1 times [2022-11-02 20:37:00,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:00,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075581415] [2022-11-02 20:37:00,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:00,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:00,630 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 20:37:00,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:00,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075581415] [2022-11-02 20:37:00,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075581415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:00,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:00,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:00,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743376036] [2022-11-02 20:37:00,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:00,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:00,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:00,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:00,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:00,635 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 257 [2022-11-02 20:37:00,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 211 transitions, 445 flow. Second operand has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states 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 20:37:00,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:00,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 257 [2022-11-02 20:37:00,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:00,871 INFO L130 PetriNetUnfolder]: 198/885 cut-off events. [2022-11-02 20:37:00,871 INFO L131 PetriNetUnfolder]: For 35/43 co-relation queries the response was YES. [2022-11-02 20:37:00,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 885 events. 198/885 cut-off events. For 35/43 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4954 event pairs, 44 based on Foata normal form. 2/722 useless extension candidates. Maximal degree in co-relation 838. Up to 120 conditions per place. [2022-11-02 20:37:00,888 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 24 selfloop transitions, 2 changer transitions 0/217 dead transitions. [2022-11-02 20:37:00,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 217 transitions, 511 flow [2022-11-02 20:37:00,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:00,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 684 transitions. [2022-11-02 20:37:00,894 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8871595330739299 [2022-11-02 20:37:00,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 684 transitions. [2022-11-02 20:37:00,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 684 transitions. [2022-11-02 20:37:00,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:00,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 684 transitions. [2022-11-02 20:37:00,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states 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 20:37:00,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:00,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:00,938 INFO L175 Difference]: Start difference. First operand has 206 places, 211 transitions, 445 flow. Second operand 3 states and 684 transitions. [2022-11-02 20:37:00,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 217 transitions, 511 flow [2022-11-02 20:37:00,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 217 transitions, 508 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:37:00,952 INFO L231 Difference]: Finished difference. Result has 207 places, 211 transitions, 450 flow [2022-11-02 20:37:00,953 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=450, PETRI_PLACES=207, PETRI_TRANSITIONS=211} [2022-11-02 20:37:00,954 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -22 predicate places. [2022-11-02 20:37:00,954 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 211 transitions, 450 flow [2022-11-02 20:37:00,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states 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 20:37:00,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:00,956 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, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:00,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:37:00,956 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:00,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash -248262492, now seen corresponding path program 1 times [2022-11-02 20:37:00,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:00,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332247428] [2022-11-02 20:37:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:00,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:01,032 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 20:37:01,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:01,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332247428] [2022-11-02 20:37:01,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332247428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:01,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:01,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:01,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435068652] [2022-11-02 20:37:01,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:01,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:01,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:01,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:01,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:01,046 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 257 [2022-11-02 20:37:01,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 211 transitions, 450 flow. Second operand has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states 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 20:37:01,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:01,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 257 [2022-11-02 20:37:01,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:01,438 INFO L130 PetriNetUnfolder]: 324/1467 cut-off events. [2022-11-02 20:37:01,439 INFO L131 PetriNetUnfolder]: For 66/68 co-relation queries the response was YES. [2022-11-02 20:37:01,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 1467 events. 324/1467 cut-off events. For 66/68 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9999 event pairs, 80 based on Foata normal form. 0/1204 useless extension candidates. Maximal degree in co-relation 1365. Up to 240 conditions per place. [2022-11-02 20:37:01,466 INFO L137 encePairwiseOnDemand]: 251/257 looper letters, 29 selfloop transitions, 3 changer transitions 0/217 dead transitions. [2022-11-02 20:37:01,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 217 transitions, 530 flow [2022-11-02 20:37:01,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:01,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:01,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 674 transitions. [2022-11-02 20:37:01,469 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.874189364461738 [2022-11-02 20:37:01,469 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 674 transitions. [2022-11-02 20:37:01,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 674 transitions. [2022-11-02 20:37:01,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:01,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 674 transitions. [2022-11-02 20:37:01,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 0 states 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 20:37:01,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:01,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:01,476 INFO L175 Difference]: Start difference. First operand has 207 places, 211 transitions, 450 flow. Second operand 3 states and 674 transitions. [2022-11-02 20:37:01,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 217 transitions, 530 flow [2022-11-02 20:37:01,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 217 transitions, 528 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:37:01,485 INFO L231 Difference]: Finished difference. Result has 206 places, 209 transitions, 455 flow [2022-11-02 20:37:01,487 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=206, PETRI_TRANSITIONS=209} [2022-11-02 20:37:01,488 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -23 predicate places. [2022-11-02 20:37:01,488 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 209 transitions, 455 flow [2022-11-02 20:37:01,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states 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 20:37:01,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:01,489 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:01,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:37:01,490 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:01,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:01,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1395490109, now seen corresponding path program 1 times [2022-11-02 20:37:01,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:01,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883438004] [2022-11-02 20:37:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:01,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:01,599 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 20:37:01,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:01,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883438004] [2022-11-02 20:37:01,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883438004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:01,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:01,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:01,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218811421] [2022-11-02 20:37:01,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:01,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:01,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:01,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:01,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:01,603 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 257 [2022-11-02 20:37:01,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 209 transitions, 455 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states 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 20:37:01,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:01,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 257 [2022-11-02 20:37:01,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:01,913 INFO L130 PetriNetUnfolder]: 241/1115 cut-off events. [2022-11-02 20:37:01,913 INFO L131 PetriNetUnfolder]: For 37/43 co-relation queries the response was YES. [2022-11-02 20:37:01,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1512 conditions, 1115 events. 241/1115 cut-off events. For 37/43 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 7092 event pairs, 86 based on Foata normal form. 0/925 useless extension candidates. Maximal degree in co-relation 1258. Up to 255 conditions per place. [2022-11-02 20:37:01,938 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 29 selfloop transitions, 2 changer transitions 0/214 dead transitions. [2022-11-02 20:37:01,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 214 transitions, 529 flow [2022-11-02 20:37:01,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:01,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 664 transitions. [2022-11-02 20:37:01,941 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8612191958495461 [2022-11-02 20:37:01,941 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 664 transitions. [2022-11-02 20:37:01,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 664 transitions. [2022-11-02 20:37:01,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:01,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 664 transitions. [2022-11-02 20:37:01,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states 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 20:37:01,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:01,947 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:01,948 INFO L175 Difference]: Start difference. First operand has 206 places, 209 transitions, 455 flow. Second operand 3 states and 664 transitions. [2022-11-02 20:37:01,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 214 transitions, 529 flow [2022-11-02 20:37:01,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 214 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:37:01,955 INFO L231 Difference]: Finished difference. Result has 206 places, 208 transitions, 454 flow [2022-11-02 20:37:01,956 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=206, PETRI_TRANSITIONS=208} [2022-11-02 20:37:01,956 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -23 predicate places. [2022-11-02 20:37:01,957 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 208 transitions, 454 flow [2022-11-02 20:37:01,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states 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 20:37:01,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:01,958 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:01,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:37:01,958 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:01,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:01,959 INFO L85 PathProgramCache]: Analyzing trace with hash 688564801, now seen corresponding path program 1 times [2022-11-02 20:37:01,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:01,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748381755] [2022-11-02 20:37:01,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:01,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:02,003 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 20:37:02,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:02,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748381755] [2022-11-02 20:37:02,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748381755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:02,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:02,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:02,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072246636] [2022-11-02 20:37:02,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:02,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:02,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:02,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:02,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:02,008 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 257 [2022-11-02 20:37:02,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 208 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states 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 20:37:02,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:02,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 257 [2022-11-02 20:37:02,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:02,246 INFO L130 PetriNetUnfolder]: 196/918 cut-off events. [2022-11-02 20:37:02,247 INFO L131 PetriNetUnfolder]: For 61/73 co-relation queries the response was YES. [2022-11-02 20:37:02,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1217 conditions, 918 events. 196/918 cut-off events. For 61/73 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5448 event pairs, 50 based on Foata normal form. 4/760 useless extension candidates. Maximal degree in co-relation 867. Up to 136 conditions per place. [2022-11-02 20:37:02,261 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 24 selfloop transitions, 2 changer transitions 0/214 dead transitions. [2022-11-02 20:37:02,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 214 transitions, 520 flow [2022-11-02 20:37:02,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:02,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 684 transitions. [2022-11-02 20:37:02,265 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8871595330739299 [2022-11-02 20:37:02,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 684 transitions. [2022-11-02 20:37:02,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 684 transitions. [2022-11-02 20:37:02,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:02,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 684 transitions. [2022-11-02 20:37:02,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states 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 20:37:02,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:02,272 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:02,272 INFO L175 Difference]: Start difference. First operand has 206 places, 208 transitions, 454 flow. Second operand 3 states and 684 transitions. [2022-11-02 20:37:02,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 214 transitions, 520 flow [2022-11-02 20:37:02,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 214 transitions, 516 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:37:02,278 INFO L231 Difference]: Finished difference. Result has 206 places, 208 transitions, 458 flow [2022-11-02 20:37:02,279 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=206, PETRI_TRANSITIONS=208} [2022-11-02 20:37:02,280 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -23 predicate places. [2022-11-02 20:37:02,280 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 208 transitions, 458 flow [2022-11-02 20:37:02,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states 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 20:37:02,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:02,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:02,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:37:02,282 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:02,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:02,282 INFO L85 PathProgramCache]: Analyzing trace with hash 270967385, now seen corresponding path program 1 times [2022-11-02 20:37:02,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:02,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252962197] [2022-11-02 20:37:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:02,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:02,325 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 20:37:02,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:02,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252962197] [2022-11-02 20:37:02,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252962197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:02,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:02,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:02,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484641268] [2022-11-02 20:37:02,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:02,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:02,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:02,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:02,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:02,330 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 257 [2022-11-02 20:37:02,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 208 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states 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 20:37:02,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:02,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 257 [2022-11-02 20:37:02,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:02,631 INFO L130 PetriNetUnfolder]: 276/1170 cut-off events. [2022-11-02 20:37:02,631 INFO L131 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2022-11-02 20:37:02,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 1170 events. 276/1170 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 7612 event pairs, 74 based on Foata normal form. 0/1008 useless extension candidates. Maximal degree in co-relation 1100. Up to 252 conditions per place. [2022-11-02 20:37:02,647 INFO L137 encePairwiseOnDemand]: 251/257 looper letters, 28 selfloop transitions, 3 changer transitions 0/213 dead transitions. [2022-11-02 20:37:02,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 213 transitions, 533 flow [2022-11-02 20:37:02,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:02,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:02,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 673 transitions. [2022-11-02 20:37:02,651 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8728923476005188 [2022-11-02 20:37:02,651 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 673 transitions. [2022-11-02 20:37:02,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 673 transitions. [2022-11-02 20:37:02,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:02,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 673 transitions. [2022-11-02 20:37:02,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states 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 20:37:02,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:02,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:02,658 INFO L175 Difference]: Start difference. First operand has 206 places, 208 transitions, 458 flow. Second operand 3 states and 673 transitions. [2022-11-02 20:37:02,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 213 transitions, 533 flow [2022-11-02 20:37:02,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 213 transitions, 531 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:37:02,665 INFO L231 Difference]: Finished difference. Result has 205 places, 206 transitions, 463 flow [2022-11-02 20:37:02,666 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=463, PETRI_PLACES=205, PETRI_TRANSITIONS=206} [2022-11-02 20:37:02,667 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -24 predicate places. [2022-11-02 20:37:02,668 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 206 transitions, 463 flow [2022-11-02 20:37:02,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states 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 20:37:02,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:02,669 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:02,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:37:02,669 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:02,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:02,670 INFO L85 PathProgramCache]: Analyzing trace with hash -597950227, now seen corresponding path program 1 times [2022-11-02 20:37:02,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:02,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142834984] [2022-11-02 20:37:02,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:02,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:02,723 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 20:37:02,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:02,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142834984] [2022-11-02 20:37:02,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142834984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:02,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:02,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:02,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139433809] [2022-11-02 20:37:02,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:02,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:02,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:02,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:02,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:02,727 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 257 [2022-11-02 20:37:02,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 206 transitions, 463 flow. Second operand has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states 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 20:37:02,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:02,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 257 [2022-11-02 20:37:02,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:03,073 INFO L130 PetriNetUnfolder]: 382/1570 cut-off events. [2022-11-02 20:37:03,073 INFO L131 PetriNetUnfolder]: For 108/116 co-relation queries the response was YES. [2022-11-02 20:37:03,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2288 conditions, 1570 events. 382/1570 cut-off events. For 108/116 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 10655 event pairs, 126 based on Foata normal form. 0/1342 useless extension candidates. Maximal degree in co-relation 1515. Up to 390 conditions per place. [2022-11-02 20:37:03,131 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 29 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2022-11-02 20:37:03,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 211 transitions, 537 flow [2022-11-02 20:37:03,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:03,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 664 transitions. [2022-11-02 20:37:03,137 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8612191958495461 [2022-11-02 20:37:03,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 664 transitions. [2022-11-02 20:37:03,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 664 transitions. [2022-11-02 20:37:03,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:03,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 664 transitions. [2022-11-02 20:37:03,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states 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 20:37:03,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:03,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:03,147 INFO L175 Difference]: Start difference. First operand has 205 places, 206 transitions, 463 flow. Second operand 3 states and 664 transitions. [2022-11-02 20:37:03,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 211 transitions, 537 flow [2022-11-02 20:37:03,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 211 transitions, 534 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:37:03,156 INFO L231 Difference]: Finished difference. Result has 205 places, 205 transitions, 462 flow [2022-11-02 20:37:03,157 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=205, PETRI_TRANSITIONS=205} [2022-11-02 20:37:03,158 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -24 predicate places. [2022-11-02 20:37:03,159 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 205 transitions, 462 flow [2022-11-02 20:37:03,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states 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 20:37:03,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:03,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:03,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:37:03,160 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:03,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:03,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1938646850, now seen corresponding path program 1 times [2022-11-02 20:37:03,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:03,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949975056] [2022-11-02 20:37:03,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:03,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:03,708 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 20:37:03,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:03,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949975056] [2022-11-02 20:37:03,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949975056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:03,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:03,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:03,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909335045] [2022-11-02 20:37:03,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:03,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:37:03,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:03,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:37:03,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:37:03,713 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 257 [2022-11-02 20:37:03,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 205 transitions, 462 flow. Second operand has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 20:37:03,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:03,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 257 [2022-11-02 20:37:03,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:04,140 INFO L130 PetriNetUnfolder]: 512/1208 cut-off events. [2022-11-02 20:37:04,141 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:37:04,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1976 conditions, 1208 events. 512/1208 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5914 event pairs, 22 based on Foata normal form. 0/1072 useless extension candidates. Maximal degree in co-relation 1705. Up to 480 conditions per place. [2022-11-02 20:37:04,168 INFO L137 encePairwiseOnDemand]: 252/257 looper letters, 53 selfloop transitions, 4 changer transitions 0/228 dead transitions. [2022-11-02 20:37:04,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 228 transitions, 622 flow [2022-11-02 20:37:04,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:37:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:37:04,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1282 transitions. [2022-11-02 20:37:04,173 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8313878080415046 [2022-11-02 20:37:04,173 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1282 transitions. [2022-11-02 20:37:04,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1282 transitions. [2022-11-02 20:37:04,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:04,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1282 transitions. [2022-11-02 20:37:04,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.66666666666666) internal successors, (1282), 6 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states 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 20:37:04,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states 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 20:37:04,183 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states 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 20:37:04,184 INFO L175 Difference]: Start difference. First operand has 205 places, 205 transitions, 462 flow. Second operand 6 states and 1282 transitions. [2022-11-02 20:37:04,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 228 transitions, 622 flow [2022-11-02 20:37:04,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 228 transitions, 618 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:37:04,190 INFO L231 Difference]: Finished difference. Result has 207 places, 204 transitions, 464 flow [2022-11-02 20:37:04,191 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=464, PETRI_PLACES=207, PETRI_TRANSITIONS=204} [2022-11-02 20:37:04,192 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -22 predicate places. [2022-11-02 20:37:04,192 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 204 transitions, 464 flow [2022-11-02 20:37:04,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 20:37:04,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:04,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:04,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:37:04,194 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:04,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:04,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1360256092, now seen corresponding path program 1 times [2022-11-02 20:37:04,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:04,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469234614] [2022-11-02 20:37:04,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:04,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,246 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 20:37:04,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:04,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469234614] [2022-11-02 20:37:04,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469234614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:04,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:04,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:04,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513440312] [2022-11-02 20:37:04,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:04,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:04,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:04,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:04,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:04,250 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 257 [2022-11-02 20:37:04,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 204 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states 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 20:37:04,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:04,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 257 [2022-11-02 20:37:04,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:04,540 INFO L130 PetriNetUnfolder]: 215/1149 cut-off events. [2022-11-02 20:37:04,540 INFO L131 PetriNetUnfolder]: For 39/46 co-relation queries the response was YES. [2022-11-02 20:37:04,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 1149 events. 215/1149 cut-off events. For 39/46 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6815 event pairs, 70 based on Foata normal form. 0/1001 useless extension candidates. Maximal degree in co-relation 1312. Up to 227 conditions per place. [2022-11-02 20:37:04,562 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 25 selfloop transitions, 2 changer transitions 0/209 dead transitions. [2022-11-02 20:37:04,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 209 transitions, 530 flow [2022-11-02 20:37:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:04,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:04,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2022-11-02 20:37:04,565 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8793774319066148 [2022-11-02 20:37:04,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 678 transitions. [2022-11-02 20:37:04,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 678 transitions. [2022-11-02 20:37:04,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:04,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 678 transitions. [2022-11-02 20:37:04,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states 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 20:37:04,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:04,604 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:04,604 INFO L175 Difference]: Start difference. First operand has 207 places, 204 transitions, 464 flow. Second operand 3 states and 678 transitions. [2022-11-02 20:37:04,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 209 transitions, 530 flow [2022-11-02 20:37:04,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 209 transitions, 523 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:37:04,610 INFO L231 Difference]: Finished difference. Result has 204 places, 203 transitions, 459 flow [2022-11-02 20:37:04,611 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=459, PETRI_PLACES=204, PETRI_TRANSITIONS=203} [2022-11-02 20:37:04,612 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -25 predicate places. [2022-11-02 20:37:04,612 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 203 transitions, 459 flow [2022-11-02 20:37:04,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states 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 20:37:04,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:04,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:04,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:37:04,614 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:04,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:04,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1144336836, now seen corresponding path program 1 times [2022-11-02 20:37:04,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:04,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394156952] [2022-11-02 20:37:04,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:04,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,666 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 20:37:04,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:04,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394156952] [2022-11-02 20:37:04,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394156952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:04,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:04,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:04,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929843252] [2022-11-02 20:37:04,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:04,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:04,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:04,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:04,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:04,670 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 257 [2022-11-02 20:37:04,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 203 transitions, 459 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states 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 20:37:04,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:04,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 257 [2022-11-02 20:37:04,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:04,923 INFO L130 PetriNetUnfolder]: 296/1015 cut-off events. [2022-11-02 20:37:04,924 INFO L131 PetriNetUnfolder]: For 129/141 co-relation queries the response was YES. [2022-11-02 20:37:04,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 1015 events. 296/1015 cut-off events. For 129/141 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 6434 event pairs, 134 based on Foata normal form. 0/892 useless extension candidates. Maximal degree in co-relation 1555. Up to 360 conditions per place. [2022-11-02 20:37:04,942 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 29 selfloop transitions, 2 changer transitions 0/208 dead transitions. [2022-11-02 20:37:04,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 208 transitions, 533 flow [2022-11-02 20:37:04,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:04,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 664 transitions. [2022-11-02 20:37:04,945 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8612191958495461 [2022-11-02 20:37:04,945 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 664 transitions. [2022-11-02 20:37:04,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 664 transitions. [2022-11-02 20:37:04,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:04,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 664 transitions. [2022-11-02 20:37:04,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states 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 20:37:04,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:04,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:04,951 INFO L175 Difference]: Start difference. First operand has 204 places, 203 transitions, 459 flow. Second operand 3 states and 664 transitions. [2022-11-02 20:37:04,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 208 transitions, 533 flow [2022-11-02 20:37:04,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 208 transitions, 529 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:37:04,958 INFO L231 Difference]: Finished difference. Result has 203 places, 202 transitions, 457 flow [2022-11-02 20:37:04,958 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=457, PETRI_PLACES=203, PETRI_TRANSITIONS=202} [2022-11-02 20:37:04,959 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -26 predicate places. [2022-11-02 20:37:04,959 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 202 transitions, 457 flow [2022-11-02 20:37:04,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states 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 20:37:04,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:04,960 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, 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 20:37:04,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:37:04,961 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:04,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:04,961 INFO L85 PathProgramCache]: Analyzing trace with hash 208893492, now seen corresponding path program 1 times [2022-11-02 20:37:04,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:04,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869599480] [2022-11-02 20:37:04,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:04,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:05,011 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 20:37:05,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:05,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869599480] [2022-11-02 20:37:05,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869599480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:05,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:05,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:05,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434806026] [2022-11-02 20:37:05,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:05,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:05,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:05,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:05,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:05,016 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 257 [2022-11-02 20:37:05,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 202 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states 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 20:37:05,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:05,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 257 [2022-11-02 20:37:05,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:05,336 INFO L130 PetriNetUnfolder]: 330/1469 cut-off events. [2022-11-02 20:37:05,337 INFO L131 PetriNetUnfolder]: For 96/108 co-relation queries the response was YES. [2022-11-02 20:37:05,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2136 conditions, 1469 events. 330/1469 cut-off events. For 96/108 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 9609 event pairs, 100 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 1417. Up to 322 conditions per place. [2022-11-02 20:37:05,359 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 25 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2022-11-02 20:37:05,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 207 transitions, 523 flow [2022-11-02 20:37:05,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:05,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:05,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2022-11-02 20:37:05,362 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8793774319066148 [2022-11-02 20:37:05,362 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 678 transitions. [2022-11-02 20:37:05,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 678 transitions. [2022-11-02 20:37:05,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:05,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 678 transitions. [2022-11-02 20:37:05,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states 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 20:37:05,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:05,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:05,368 INFO L175 Difference]: Start difference. First operand has 203 places, 202 transitions, 457 flow. Second operand 3 states and 678 transitions. [2022-11-02 20:37:05,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 207 transitions, 523 flow [2022-11-02 20:37:05,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 207 transitions, 519 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:37:05,375 INFO L231 Difference]: Finished difference. Result has 202 places, 201 transitions, 455 flow [2022-11-02 20:37:05,376 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=202, PETRI_TRANSITIONS=201} [2022-11-02 20:37:05,377 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -27 predicate places. [2022-11-02 20:37:05,377 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 201 transitions, 455 flow [2022-11-02 20:37:05,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states 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 20:37:05,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:05,378 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, 1, 1, 1, 1, 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 20:37:05,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:37:05,378 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:05,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:05,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1646766708, now seen corresponding path program 1 times [2022-11-02 20:37:05,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:05,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342125247] [2022-11-02 20:37:05,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:05,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:05,554 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 20:37:05,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:05,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342125247] [2022-11-02 20:37:05,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342125247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:05,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:05,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:37:05,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725205250] [2022-11-02 20:37:05,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:05,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:05,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:05,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:05,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:05,560 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 257 [2022-11-02 20:37:05,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 201 transitions, 455 flow. Second operand has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states 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 20:37:05,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:05,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 257 [2022-11-02 20:37:05,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:05,782 INFO L130 PetriNetUnfolder]: 173/921 cut-off events. [2022-11-02 20:37:05,783 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-02 20:37:05,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 921 events. 173/921 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4955 event pairs, 26 based on Foata normal form. 0/825 useless extension candidates. Maximal degree in co-relation 1262. Up to 120 conditions per place. [2022-11-02 20:37:05,802 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 25 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2022-11-02 20:37:05,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 211 transitions, 531 flow [2022-11-02 20:37:05,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:05,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:05,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2022-11-02 20:37:05,805 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9040207522697795 [2022-11-02 20:37:05,806 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 697 transitions. [2022-11-02 20:37:05,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 697 transitions. [2022-11-02 20:37:05,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:05,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 697 transitions. [2022-11-02 20:37:05,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states 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 20:37:05,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:05,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:05,811 INFO L175 Difference]: Start difference. First operand has 202 places, 201 transitions, 455 flow. Second operand 3 states and 697 transitions. [2022-11-02 20:37:05,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 211 transitions, 531 flow [2022-11-02 20:37:05,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 211 transitions, 527 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:37:05,818 INFO L231 Difference]: Finished difference. Result has 203 places, 202 transitions, 463 flow [2022-11-02 20:37:05,818 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=463, PETRI_PLACES=203, PETRI_TRANSITIONS=202} [2022-11-02 20:37:05,819 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -26 predicate places. [2022-11-02 20:37:05,819 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 202 transitions, 463 flow [2022-11-02 20:37:05,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states 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 20:37:05,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:05,820 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, 1, 1, 1, 1, 1, 1, 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 20:37:05,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:37:05,825 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:05,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:05,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1211600597, now seen corresponding path program 1 times [2022-11-02 20:37:05,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:05,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129353239] [2022-11-02 20:37:05,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:05,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:05,887 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 20:37:05,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:05,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129353239] [2022-11-02 20:37:05,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129353239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:05,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:05,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:05,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60451066] [2022-11-02 20:37:05,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:05,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:05,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:05,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:05,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:05,892 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 257 [2022-11-02 20:37:05,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 202 transitions, 463 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states 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 20:37:05,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:05,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 257 [2022-11-02 20:37:05,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:06,196 INFO L130 PetriNetUnfolder]: 263/971 cut-off events. [2022-11-02 20:37:06,196 INFO L131 PetriNetUnfolder]: For 59/71 co-relation queries the response was YES. [2022-11-02 20:37:06,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1462 conditions, 971 events. 263/971 cut-off events. For 59/71 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5894 event pairs, 96 based on Foata normal form. 0/858 useless extension candidates. Maximal degree in co-relation 1024. Up to 285 conditions per place. [2022-11-02 20:37:06,219 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 25 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2022-11-02 20:37:06,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 207 transitions, 529 flow [2022-11-02 20:37:06,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:06,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:06,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2022-11-02 20:37:06,223 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8793774319066148 [2022-11-02 20:37:06,223 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 678 transitions. [2022-11-02 20:37:06,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 678 transitions. [2022-11-02 20:37:06,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:06,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 678 transitions. [2022-11-02 20:37:06,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states 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 20:37:06,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:06,230 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:06,231 INFO L175 Difference]: Start difference. First operand has 203 places, 202 transitions, 463 flow. Second operand 3 states and 678 transitions. [2022-11-02 20:37:06,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 207 transitions, 529 flow [2022-11-02 20:37:06,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 207 transitions, 527 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:37:06,239 INFO L231 Difference]: Finished difference. Result has 203 places, 201 transitions, 463 flow [2022-11-02 20:37:06,240 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=463, PETRI_PLACES=203, PETRI_TRANSITIONS=201} [2022-11-02 20:37:06,241 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -26 predicate places. [2022-11-02 20:37:06,241 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 201 transitions, 463 flow [2022-11-02 20:37:06,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states 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 20:37:06,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:06,243 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:06,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:37:06,243 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:06,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:06,244 INFO L85 PathProgramCache]: Analyzing trace with hash 341106718, now seen corresponding path program 1 times [2022-11-02 20:37:06,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:06,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983485554] [2022-11-02 20:37:06,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:06,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:06,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:06,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:06,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983485554] [2022-11-02 20:37:06,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983485554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:06,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:06,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:37:06,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581145731] [2022-11-02 20:37:06,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:06,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:06,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:06,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:06,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:06,458 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 257 [2022-11-02 20:37:06,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 201 transitions, 463 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states 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 20:37:06,459 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:06,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 257 [2022-11-02 20:37:06,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:06,716 INFO L130 PetriNetUnfolder]: 265/1025 cut-off events. [2022-11-02 20:37:06,716 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-02 20:37:06,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1568 conditions, 1025 events. 265/1025 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5811 event pairs, 18 based on Foata normal form. 0/944 useless extension candidates. Maximal degree in co-relation 1526. Up to 287 conditions per place. [2022-11-02 20:37:06,738 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 26 selfloop transitions, 2 changer transitions 0/210 dead transitions. [2022-11-02 20:37:06,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 210 transitions, 539 flow [2022-11-02 20:37:06,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:06,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:06,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 692 transitions. [2022-11-02 20:37:06,744 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8975356679636836 [2022-11-02 20:37:06,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 692 transitions. [2022-11-02 20:37:06,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 692 transitions. [2022-11-02 20:37:06,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:06,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 692 transitions. [2022-11-02 20:37:06,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states 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 20:37:06,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:06,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:06,750 INFO L175 Difference]: Start difference. First operand has 203 places, 201 transitions, 463 flow. Second operand 3 states and 692 transitions. [2022-11-02 20:37:06,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 210 transitions, 539 flow [2022-11-02 20:37:06,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 210 transitions, 535 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:37:06,757 INFO L231 Difference]: Finished difference. Result has 204 places, 202 transitions, 471 flow [2022-11-02 20:37:06,759 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=471, PETRI_PLACES=204, PETRI_TRANSITIONS=202} [2022-11-02 20:37:06,760 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -25 predicate places. [2022-11-02 20:37:06,760 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 202 transitions, 471 flow [2022-11-02 20:37:06,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states 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 20:37:06,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:06,763 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:06,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:37:06,764 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:06,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:06,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1474008414, now seen corresponding path program 1 times [2022-11-02 20:37:06,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:06,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734986890] [2022-11-02 20:37:06,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:06,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:07,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 20:37:07,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:07,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734986890] [2022-11-02 20:37:07,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734986890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:07,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:07,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:07,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118046710] [2022-11-02 20:37:07,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:07,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:37:07,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:07,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:37:07,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:37:07,329 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 257 [2022-11-02 20:37:07,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 202 transitions, 471 flow. Second operand has 6 states, 6 states have (on average 207.16666666666666) internal successors, (1243), 6 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states 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 20:37:07,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:07,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 257 [2022-11-02 20:37:07,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:07,757 INFO L130 PetriNetUnfolder]: 450/1227 cut-off events. [2022-11-02 20:37:07,757 INFO L131 PetriNetUnfolder]: For 2/13 co-relation queries the response was YES. [2022-11-02 20:37:07,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1969 conditions, 1227 events. 450/1227 cut-off events. For 2/13 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7232 event pairs, 177 based on Foata normal form. 0/1053 useless extension candidates. Maximal degree in co-relation 1523. Up to 464 conditions per place. [2022-11-02 20:37:07,781 INFO L137 encePairwiseOnDemand]: 252/257 looper letters, 44 selfloop transitions, 4 changer transitions 0/217 dead transitions. [2022-11-02 20:37:07,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 217 transitions, 597 flow [2022-11-02 20:37:07,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:37:07,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:37:07,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1273 transitions. [2022-11-02 20:37:07,786 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8255512321660181 [2022-11-02 20:37:07,786 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1273 transitions. [2022-11-02 20:37:07,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1273 transitions. [2022-11-02 20:37:07,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:07,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1273 transitions. [2022-11-02 20:37:07,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.16666666666666) internal successors, (1273), 6 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states 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 20:37:07,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states 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 20:37:07,795 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states 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 20:37:07,796 INFO L175 Difference]: Start difference. First operand has 204 places, 202 transitions, 471 flow. Second operand 6 states and 1273 transitions. [2022-11-02 20:37:07,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 217 transitions, 597 flow [2022-11-02 20:37:07,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 217 transitions, 595 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:37:07,802 INFO L231 Difference]: Finished difference. Result has 207 places, 201 transitions, 475 flow [2022-11-02 20:37:07,802 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=475, PETRI_PLACES=207, PETRI_TRANSITIONS=201} [2022-11-02 20:37:07,803 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -22 predicate places. [2022-11-02 20:37:07,803 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 201 transitions, 475 flow [2022-11-02 20:37:07,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 207.16666666666666) internal successors, (1243), 6 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states 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 20:37:07,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:07,805 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:07,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 20:37:07,805 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:07,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:07,806 INFO L85 PathProgramCache]: Analyzing trace with hash -291882294, now seen corresponding path program 1 times [2022-11-02 20:37:07,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:07,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102776590] [2022-11-02 20:37:07,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:07,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:08,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 20:37:08,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:08,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102776590] [2022-11-02 20:37:08,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102776590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:08,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:08,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:37:08,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777646919] [2022-11-02 20:37:08,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:08,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:37:08,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:08,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:37:08,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:37:08,465 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 257 [2022-11-02 20:37:08,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 201 transitions, 475 flow. Second operand has 6 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states 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 20:37:08,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:08,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 257 [2022-11-02 20:37:08,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:08,871 INFO L130 PetriNetUnfolder]: 455/1229 cut-off events. [2022-11-02 20:37:08,871 INFO L131 PetriNetUnfolder]: For 5/17 co-relation queries the response was YES. [2022-11-02 20:37:08,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1991 conditions, 1229 events. 455/1229 cut-off events. For 5/17 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7286 event pairs, 204 based on Foata normal form. 0/1050 useless extension candidates. Maximal degree in co-relation 1708. Up to 545 conditions per place. [2022-11-02 20:37:08,902 INFO L137 encePairwiseOnDemand]: 252/257 looper letters, 35 selfloop transitions, 4 changer transitions 0/208 dead transitions. [2022-11-02 20:37:08,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 208 transitions, 567 flow [2022-11-02 20:37:08,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:37:08,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:37:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1264 transitions. [2022-11-02 20:37:08,908 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8197146562905318 [2022-11-02 20:37:08,908 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1264 transitions. [2022-11-02 20:37:08,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1264 transitions. [2022-11-02 20:37:08,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:08,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1264 transitions. [2022-11-02 20:37:08,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states 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 20:37:08,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states 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 20:37:08,918 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states 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 20:37:08,918 INFO L175 Difference]: Start difference. First operand has 207 places, 201 transitions, 475 flow. Second operand 6 states and 1264 transitions. [2022-11-02 20:37:08,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 208 transitions, 567 flow [2022-11-02 20:37:08,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 208 transitions, 560 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:37:08,924 INFO L231 Difference]: Finished difference. Result has 207 places, 200 transitions, 474 flow [2022-11-02 20:37:08,925 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=474, PETRI_PLACES=207, PETRI_TRANSITIONS=200} [2022-11-02 20:37:08,926 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -22 predicate places. [2022-11-02 20:37:08,926 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 200 transitions, 474 flow [2022-11-02 20:37:08,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states 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 20:37:08,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:08,928 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:08,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 20:37:08,928 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-02 20:37:08,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:08,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2041431378, now seen corresponding path program 1 times [2022-11-02 20:37:08,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:08,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511028115] [2022-11-02 20:37:08,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:08,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 20:37:09,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:09,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511028115] [2022-11-02 20:37:09,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511028115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:09,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:09,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:09,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758142819] [2022-11-02 20:37:09,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:09,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:37:09,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:09,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:37:09,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:37:09,013 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 257 [2022-11-02 20:37:09,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 200 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states 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 20:37:09,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:09,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 257 [2022-11-02 20:37:09,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:09,226 INFO L130 PetriNetUnfolder]: 129/943 cut-off events. [2022-11-02 20:37:09,226 INFO L131 PetriNetUnfolder]: For 12/18 co-relation queries the response was YES. [2022-11-02 20:37:09,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1251 conditions, 943 events. 129/943 cut-off events. For 12/18 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5075 event pairs, 32 based on Foata normal form. 4/836 useless extension candidates. Maximal degree in co-relation 1202. Up to 121 conditions per place. [2022-11-02 20:37:09,240 INFO L137 encePairwiseOnDemand]: 255/257 looper letters, 0 selfloop transitions, 0 changer transitions 199/199 dead transitions. [2022-11-02 20:37:09,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 199 transitions, 498 flow [2022-11-02 20:37:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:37:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 689 transitions. [2022-11-02 20:37:09,244 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.893644617380026 [2022-11-02 20:37:09,244 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 689 transitions. [2022-11-02 20:37:09,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 689 transitions. [2022-11-02 20:37:09,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:09,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 689 transitions. [2022-11-02 20:37:09,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:09,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:09,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states 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 20:37:09,250 INFO L175 Difference]: Start difference. First operand has 207 places, 200 transitions, 474 flow. Second operand 3 states and 689 transitions. [2022-11-02 20:37:09,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 199 transitions, 498 flow [2022-11-02 20:37:09,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 199 transitions, 491 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:37:09,255 INFO L231 Difference]: Finished difference. Result has 204 places, 0 transitions, 0 flow [2022-11-02 20:37:09,256 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=204, PETRI_TRANSITIONS=0} [2022-11-02 20:37:09,257 INFO L287 CegarLoopForPetriNet]: 229 programPoint places, -25 predicate places. [2022-11-02 20:37:09,257 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 0 transitions, 0 flow [2022-11-02 20:37:09,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states 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 20:37:09,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (72 of 73 remaining) [2022-11-02 20:37:09,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (71 of 73 remaining) [2022-11-02 20:37:09,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (70 of 73 remaining) [2022-11-02 20:37:09,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (69 of 73 remaining) [2022-11-02 20:37:09,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (68 of 73 remaining) [2022-11-02 20:37:09,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (67 of 73 remaining) [2022-11-02 20:37:09,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (66 of 73 remaining) [2022-11-02 20:37:09,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (65 of 73 remaining) [2022-11-02 20:37:09,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (64 of 73 remaining) [2022-11-02 20:37:09,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (63 of 73 remaining) [2022-11-02 20:37:09,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (62 of 73 remaining) [2022-11-02 20:37:09,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (61 of 73 remaining) [2022-11-02 20:37:09,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (60 of 73 remaining) [2022-11-02 20:37:09,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (59 of 73 remaining) [2022-11-02 20:37:09,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (58 of 73 remaining) [2022-11-02 20:37:09,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (57 of 73 remaining) [2022-11-02 20:37:09,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (56 of 73 remaining) [2022-11-02 20:37:09,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (55 of 73 remaining) [2022-11-02 20:37:09,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (54 of 73 remaining) [2022-11-02 20:37:09,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (53 of 73 remaining) [2022-11-02 20:37:09,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (52 of 73 remaining) [2022-11-02 20:37:09,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (51 of 73 remaining) [2022-11-02 20:37:09,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (50 of 73 remaining) [2022-11-02 20:37:09,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (49 of 73 remaining) [2022-11-02 20:37:09,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (48 of 73 remaining) [2022-11-02 20:37:09,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (47 of 73 remaining) [2022-11-02 20:37:09,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (46 of 73 remaining) [2022-11-02 20:37:09,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (45 of 73 remaining) [2022-11-02 20:37:09,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (44 of 73 remaining) [2022-11-02 20:37:09,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (43 of 73 remaining) [2022-11-02 20:37:09,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 73 remaining) [2022-11-02 20:37:09,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 73 remaining) [2022-11-02 20:37:09,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 73 remaining) [2022-11-02 20:37:09,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 73 remaining) [2022-11-02 20:37:09,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 73 remaining) [2022-11-02 20:37:09,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (37 of 73 remaining) [2022-11-02 20:37:09,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (36 of 73 remaining) [2022-11-02 20:37:09,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (35 of 73 remaining) [2022-11-02 20:37:09,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 73 remaining) [2022-11-02 20:37:09,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 73 remaining) [2022-11-02 20:37:09,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 73 remaining) [2022-11-02 20:37:09,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 73 remaining) [2022-11-02 20:37:09,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 73 remaining) [2022-11-02 20:37:09,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 73 remaining) [2022-11-02 20:37:09,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (28 of 73 remaining) [2022-11-02 20:37:09,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (27 of 73 remaining) [2022-11-02 20:37:09,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (26 of 73 remaining) [2022-11-02 20:37:09,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (25 of 73 remaining) [2022-11-02 20:37:09,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (24 of 73 remaining) [2022-11-02 20:37:09,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (23 of 73 remaining) [2022-11-02 20:37:09,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (22 of 73 remaining) [2022-11-02 20:37:09,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (21 of 73 remaining) [2022-11-02 20:37:09,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (20 of 73 remaining) [2022-11-02 20:37:09,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 73 remaining) [2022-11-02 20:37:09,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 73 remaining) [2022-11-02 20:37:09,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 73 remaining) [2022-11-02 20:37:09,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 73 remaining) [2022-11-02 20:37:09,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (15 of 73 remaining) [2022-11-02 20:37:09,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (14 of 73 remaining) [2022-11-02 20:37:09,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (13 of 73 remaining) [2022-11-02 20:37:09,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (12 of 73 remaining) [2022-11-02 20:37:09,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (11 of 73 remaining) [2022-11-02 20:37:09,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (10 of 73 remaining) [2022-11-02 20:37:09,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (9 of 73 remaining) [2022-11-02 20:37:09,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (8 of 73 remaining) [2022-11-02 20:37:09,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (7 of 73 remaining) [2022-11-02 20:37:09,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (6 of 73 remaining) [2022-11-02 20:37:09,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (5 of 73 remaining) [2022-11-02 20:37:09,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (4 of 73 remaining) [2022-11-02 20:37:09,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (3 of 73 remaining) [2022-11-02 20:37:09,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (2 of 73 remaining) [2022-11-02 20:37:09,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (1 of 73 remaining) [2022-11-02 20:37:09,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (0 of 73 remaining) [2022-11-02 20:37:09,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 20:37:09,284 INFO L444 BasicCegarLoop]: Path program 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] [2022-11-02 20:37:09,291 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:37:09,291 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:37:09,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:37:09 BasicIcfg [2022-11-02 20:37:09,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:37:09,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:37:09,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:37:09,303 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:37:09,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:55" (3/4) ... [2022-11-02 20:37:09,307 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:37:09,314 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-02 20:37:09,315 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-02 20:37:09,315 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-02 20:37:09,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-02 20:37:09,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 20:37:09,323 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:37:09,323 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:37:09,384 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:37:09,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:37:09,386 INFO L158 Benchmark]: Toolchain (without parser) took 15212.72ms. Allocated memory was 92.3MB in the beginning and 325.1MB in the end (delta: 232.8MB). Free memory was 58.9MB in the beginning and 137.8MB in the end (delta: -78.9MB). Peak memory consumption was 154.2MB. Max. memory is 16.1GB. [2022-11-02 20:37:09,387 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 92.3MB. Free memory was 45.4MB in the beginning and 45.4MB in the end (delta: 45.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:37:09,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.20ms. Allocated memory was 92.3MB in the beginning and 121.6MB in the end (delta: 29.4MB). Free memory was 58.7MB in the beginning and 95.4MB in the end (delta: -36.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:37:09,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.27ms. Allocated memory is still 121.6MB. Free memory was 95.4MB in the beginning and 93.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:37:09,388 INFO L158 Benchmark]: Boogie Preprocessor took 42.54ms. Allocated memory is still 121.6MB. Free memory was 93.7MB in the beginning and 91.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:37:09,388 INFO L158 Benchmark]: RCFGBuilder took 1132.25ms. Allocated memory is still 121.6MB. Free memory was 91.6MB in the beginning and 96.9MB in the end (delta: -5.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2022-11-02 20:37:09,390 INFO L158 Benchmark]: TraceAbstraction took 13337.69ms. Allocated memory was 121.6MB in the beginning and 325.1MB in the end (delta: 203.4MB). Free memory was 96.4MB in the beginning and 140.9MB in the end (delta: -44.5MB). Peak memory consumption was 158.5MB. Max. memory is 16.1GB. [2022-11-02 20:37:09,392 INFO L158 Benchmark]: Witness Printer took 82.50ms. Allocated memory is still 325.1MB. Free memory was 140.9MB in the beginning and 137.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:37:09,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 92.3MB. Free memory was 45.4MB in the beginning and 45.4MB in the end (delta: 45.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 523.20ms. Allocated memory was 92.3MB in the beginning and 121.6MB in the end (delta: 29.4MB). Free memory was 58.7MB in the beginning and 95.4MB in the end (delta: -36.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.27ms. Allocated memory is still 121.6MB. Free memory was 95.4MB in the beginning and 93.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.54ms. Allocated memory is still 121.6MB. Free memory was 93.7MB in the beginning and 91.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1132.25ms. Allocated memory is still 121.6MB. Free memory was 91.6MB in the beginning and 96.9MB in the end (delta: -5.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13337.69ms. Allocated memory was 121.6MB in the beginning and 325.1MB in the end (delta: 203.4MB). Free memory was 96.4MB in the beginning and 140.9MB in the end (delta: -44.5MB). Peak memory consumption was 158.5MB. Max. memory is 16.1GB. * Witness Printer took 82.50ms. Allocated memory is still 325.1MB. Free memory was 140.9MB in the beginning and 137.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 112]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 115]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 122]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 123]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 124]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 126]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 362 locations, 73 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.1s, OverallIterations: 24, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 219 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 219 mSDsluCounter, 220 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 335 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1052 IncrementalHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 220 mSDtfsCounter, 1052 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=486occurred in iteration=0, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1756 NumberOfCodeBlocks, 1756 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1732 ConstructedInterpolants, 0 QuantifiedInterpolants, 2183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 40 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:37:09,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c9a69f-0471-4019-a93c-1117aa5d5ec1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE