./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8 --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 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --- 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-e04fb08 [2022-11-16 12:04:22,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:04:22,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:04:22,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:04:22,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:04:22,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:04:22,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:04:22,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:04:22,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:04:22,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:04:22,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:04:22,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:04:22,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:04:22,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:04:22,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:04:22,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:04:22,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:04:22,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:04:22,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:04:22,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:04:22,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:04:22,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:04:22,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:04:22,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:04:22,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:04:22,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:04:22,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:04:22,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:04:22,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:04:22,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:04:22,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:04:22,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:04:22,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:04:22,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:04:22,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:04:22,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:04:22,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:04:22,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:04:22,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:04:22,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:04:22,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:04:22,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:04:22,610 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:04:22,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:04:22,611 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:04:22,611 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:04:22,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:04:22,612 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:04:22,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:04:22,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:04:22,613 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:04:22,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:04:22,615 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:04:22,615 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:04:22,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:04:22,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:04:22,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:04:22,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:04:22,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:04:22,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:04:22,616 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:04:22,617 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:04:22,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:04:22,617 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:04:22,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:04:22,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:04:22,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:04:22,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:04:22,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:04:22,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:04:22,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:04:22,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:04:22,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:04:22,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:04:22,621 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:04:22,622 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:04:22,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:04:22,622 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_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf [2022-11-16 12:04:22,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:04:22,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:04:22,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:04:22,935 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:04:22,936 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:04:22,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2022-11-16 12:04:23,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/data/b04d05ddb/55e9b682f90e48f49352546324386c45/FLAGc2e9a787c [2022-11-16 12:04:23,614 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:04:23,615 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2022-11-16 12:04:23,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/data/b04d05ddb/55e9b682f90e48f49352546324386c45/FLAGc2e9a787c [2022-11-16 12:04:23,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/data/b04d05ddb/55e9b682f90e48f49352546324386c45 [2022-11-16 12:04:23,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:04:23,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:04:23,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:04:23,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:04:23,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:04:23,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:04:23" (1/1) ... [2022-11-16 12:04:23,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e60e8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:23, skipping insertion in model container [2022-11-16 12:04:23,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:04:23" (1/1) ... [2022-11-16 12:04:23,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:04:23,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:04:24,337 WARN L229 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_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[30176,30189] [2022-11-16 12:04:24,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:04:24,376 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:04:24,435 WARN L229 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_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[30176,30189] [2022-11-16 12:04:24,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:04:24,503 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:04:24,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24 WrapperNode [2022-11-16 12:04:24,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:04:24,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:04:24,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:04:24,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:04:24,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (1/1) ... [2022-11-16 12:04:24,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (1/1) ... [2022-11-16 12:04:24,548 INFO L138 Inliner]: procedures = 170, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-11-16 12:04:24,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:04:24,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:04:24,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:04:24,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:04:24,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (1/1) ... [2022-11-16 12:04:24,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (1/1) ... [2022-11-16 12:04:24,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (1/1) ... [2022-11-16 12:04:24,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (1/1) ... [2022-11-16 12:04:24,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (1/1) ... [2022-11-16 12:04:24,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (1/1) ... [2022-11-16 12:04:24,600 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (1/1) ... [2022-11-16 12:04:24,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (1/1) ... [2022-11-16 12:04:24,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:04:24,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:04:24,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:04:24,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:04:24,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (1/1) ... [2022-11-16 12:04:24,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:04:24,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:04:24,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:04:24,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:04:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:04:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:04:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:04:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:04:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:04:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:04:24,701 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:04:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:04:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:04:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:04:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:04:24,707 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:04:24,947 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:04:24,949 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:04:25,312 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:04:25,323 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:04:25,326 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-16 12:04:25,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:25 BoogieIcfgContainer [2022-11-16 12:04:25,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:04:25,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:04:25,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:04:25,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:04:25,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:04:23" (1/3) ... [2022-11-16 12:04:25,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558a97ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:04:25, skipping insertion in model container [2022-11-16 12:04:25,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:24" (2/3) ... [2022-11-16 12:04:25,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558a97ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:04:25, skipping insertion in model container [2022-11-16 12:04:25,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:25" (3/3) ... [2022-11-16 12:04:25,340 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2022-11-16 12:04:25,352 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:04:25,362 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:04:25,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 12:04:25,363 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:04:25,507 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 12:04:25,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 147 transitions, 302 flow [2022-11-16 12:04:25,657 INFO L130 PetriNetUnfolder]: 9/146 cut-off events. [2022-11-16 12:04:25,662 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:04:25,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 146 events. 9/146 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 290 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 96. Up to 3 conditions per place. [2022-11-16 12:04:25,668 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 147 transitions, 302 flow [2022-11-16 12:04:25,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 136 transitions, 275 flow [2022-11-16 12:04:25,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:04:25,688 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;@2c4d6862, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:04:25,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-16 12:04:25,711 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-11-16 12:04:25,712 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:04:25,712 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:25,713 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:25,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:25,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:25,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1607129543, now seen corresponding path program 1 times [2022-11-16 12:04:25,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:25,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491745435] [2022-11-16 12:04:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:25,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:26,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:26,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491745435] [2022-11-16 12:04:26,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491745435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:26,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:26,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:04:26,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290601770] [2022-11-16 12:04:26,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:26,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:04:26,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:26,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:04:26,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:26,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 147 [2022-11-16 12:04:26,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 136 transitions, 275 flow. Second operand has 6 states, 6 states have (on average 94.66666666666667) internal successors, (568), 6 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:26,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:26,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 147 [2022-11-16 12:04:26,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:27,611 INFO L130 PetriNetUnfolder]: 474/1649 cut-off events. [2022-11-16 12:04:27,611 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:04:27,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2672 conditions, 1649 events. 474/1649 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10667 event pairs, 41 based on Foata normal form. 232/1700 useless extension candidates. Maximal degree in co-relation 2623. Up to 550 conditions per place. [2022-11-16 12:04:27,627 INFO L137 encePairwiseOnDemand]: 124/147 looper letters, 110 selfloop transitions, 37 changer transitions 0/232 dead transitions. [2022-11-16 12:04:27,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 232 transitions, 761 flow [2022-11-16 12:04:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:04:27,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:04:27,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 741 transitions. [2022-11-16 12:04:27,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8401360544217688 [2022-11-16 12:04:27,651 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 741 transitions. [2022-11-16 12:04:27,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 741 transitions. [2022-11-16 12:04:27,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:27,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 741 transitions. [2022-11-16 12:04:27,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:27,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:27,674 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:27,676 INFO L175 Difference]: Start difference. First operand has 131 places, 136 transitions, 275 flow. Second operand 6 states and 741 transitions. [2022-11-16 12:04:27,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 232 transitions, 761 flow [2022-11-16 12:04:27,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 232 transitions, 760 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:04:27,687 INFO L231 Difference]: Finished difference. Result has 139 places, 162 transitions, 500 flow [2022-11-16 12:04:27,689 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=500, PETRI_PLACES=139, PETRI_TRANSITIONS=162} [2022-11-16 12:04:27,695 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 8 predicate places. [2022-11-16 12:04:27,695 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 162 transitions, 500 flow [2022-11-16 12:04:27,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.66666666666667) internal successors, (568), 6 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:27,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:27,697 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:27,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:04:27,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:27,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:27,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1163622051, now seen corresponding path program 1 times [2022-11-16 12:04:27,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:27,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684915936] [2022-11-16 12:04:27,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:27,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:28,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:28,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:28,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684915936] [2022-11-16 12:04:28,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684915936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:28,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:28,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:04:28,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993504033] [2022-11-16 12:04:28,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:28,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:04:28,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:28,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:04:28,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:28,170 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 147 [2022-11-16 12:04:28,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 162 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 95.33333333333333) internal successors, (572), 6 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:28,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:28,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 147 [2022-11-16 12:04:28,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:28,732 INFO L130 PetriNetUnfolder]: 494/1661 cut-off events. [2022-11-16 12:04:28,732 INFO L131 PetriNetUnfolder]: For 544/544 co-relation queries the response was YES. [2022-11-16 12:04:28,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3362 conditions, 1661 events. 494/1661 cut-off events. For 544/544 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10151 event pairs, 160 based on Foata normal form. 0/1525 useless extension candidates. Maximal degree in co-relation 3312. Up to 645 conditions per place. [2022-11-16 12:04:28,743 INFO L137 encePairwiseOnDemand]: 135/147 looper letters, 122 selfloop transitions, 18 changer transitions 0/224 dead transitions. [2022-11-16 12:04:28,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 224 transitions, 1024 flow [2022-11-16 12:04:28,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:04:28,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:04:28,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2022-11-16 12:04:28,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7414965986394558 [2022-11-16 12:04:28,746 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 654 transitions. [2022-11-16 12:04:28,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 654 transitions. [2022-11-16 12:04:28,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:28,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 654 transitions. [2022-11-16 12:04:28,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:28,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:28,752 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:28,752 INFO L175 Difference]: Start difference. First operand has 139 places, 162 transitions, 500 flow. Second operand 6 states and 654 transitions. [2022-11-16 12:04:28,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 224 transitions, 1024 flow [2022-11-16 12:04:28,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 224 transitions, 1024 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:04:28,761 INFO L231 Difference]: Finished difference. Result has 142 places, 160 transitions, 532 flow [2022-11-16 12:04:28,761 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=532, PETRI_PLACES=142, PETRI_TRANSITIONS=160} [2022-11-16 12:04:28,762 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 11 predicate places. [2022-11-16 12:04:28,762 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 160 transitions, 532 flow [2022-11-16 12:04:28,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.33333333333333) internal successors, (572), 6 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:28,763 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:28,763 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:28,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:04:28,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:28,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:28,764 INFO L85 PathProgramCache]: Analyzing trace with hash 9644237, now seen corresponding path program 1 times [2022-11-16 12:04:28,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:28,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739606675] [2022-11-16 12:04:28,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:28,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:29,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:29,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739606675] [2022-11-16 12:04:29,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739606675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:29,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:29,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:04:29,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029124109] [2022-11-16 12:04:29,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:29,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:04:29,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:29,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:04:29,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:29,120 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 147 [2022-11-16 12:04:29,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 160 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:29,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:29,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 147 [2022-11-16 12:04:29,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:29,658 INFO L130 PetriNetUnfolder]: 591/1943 cut-off events. [2022-11-16 12:04:29,658 INFO L131 PetriNetUnfolder]: For 712/712 co-relation queries the response was YES. [2022-11-16 12:04:29,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4125 conditions, 1943 events. 591/1943 cut-off events. For 712/712 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 12413 event pairs, 297 based on Foata normal form. 0/1786 useless extension candidates. Maximal degree in co-relation 4074. Up to 1148 conditions per place. [2022-11-16 12:04:29,669 INFO L137 encePairwiseOnDemand]: 132/147 looper letters, 90 selfloop transitions, 48 changer transitions 0/220 dead transitions. [2022-11-16 12:04:29,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 220 transitions, 1024 flow [2022-11-16 12:04:29,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:04:29,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:04:29,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 648 transitions. [2022-11-16 12:04:29,672 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7346938775510204 [2022-11-16 12:04:29,672 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 648 transitions. [2022-11-16 12:04:29,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 648 transitions. [2022-11-16 12:04:29,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:29,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 648 transitions. [2022-11-16 12:04:29,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:29,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:29,678 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:29,678 INFO L175 Difference]: Start difference. First operand has 142 places, 160 transitions, 532 flow. Second operand 6 states and 648 transitions. [2022-11-16 12:04:29,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 220 transitions, 1024 flow [2022-11-16 12:04:29,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 220 transitions, 988 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:04:29,687 INFO L231 Difference]: Finished difference. Result has 147 places, 203 transitions, 884 flow [2022-11-16 12:04:29,687 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=147, PETRI_TRANSITIONS=203} [2022-11-16 12:04:29,688 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 16 predicate places. [2022-11-16 12:04:29,688 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 203 transitions, 884 flow [2022-11-16 12:04:29,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:29,689 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:29,689 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:29,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:04:29,689 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:29,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:29,690 INFO L85 PathProgramCache]: Analyzing trace with hash 42894600, now seen corresponding path program 1 times [2022-11-16 12:04:29,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:29,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112982515] [2022-11-16 12:04:29,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:29,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:30,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:30,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112982515] [2022-11-16 12:04:30,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112982515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:30,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:30,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:04:30,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912361708] [2022-11-16 12:04:30,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:30,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:04:30,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:30,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:04:30,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:30,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 147 [2022-11-16 12:04:30,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 203 transitions, 884 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:30,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:30,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 147 [2022-11-16 12:04:30,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:30,692 INFO L130 PetriNetUnfolder]: 580/1905 cut-off events. [2022-11-16 12:04:30,692 INFO L131 PetriNetUnfolder]: For 1209/1215 co-relation queries the response was YES. [2022-11-16 12:04:30,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4704 conditions, 1905 events. 580/1905 cut-off events. For 1209/1215 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 12428 event pairs, 124 based on Foata normal form. 0/1803 useless extension candidates. Maximal degree in co-relation 4646. Up to 873 conditions per place. [2022-11-16 12:04:30,703 INFO L137 encePairwiseOnDemand]: 133/147 looper letters, 165 selfloop transitions, 75 changer transitions 4/330 dead transitions. [2022-11-16 12:04:30,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 330 transitions, 1936 flow [2022-11-16 12:04:30,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:04:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:04:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 690 transitions. [2022-11-16 12:04:30,706 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.782312925170068 [2022-11-16 12:04:30,706 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 690 transitions. [2022-11-16 12:04:30,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 690 transitions. [2022-11-16 12:04:30,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:30,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 690 transitions. [2022-11-16 12:04:30,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:30,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:30,716 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:30,716 INFO L175 Difference]: Start difference. First operand has 147 places, 203 transitions, 884 flow. Second operand 6 states and 690 transitions. [2022-11-16 12:04:30,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 330 transitions, 1936 flow [2022-11-16 12:04:30,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 330 transitions, 1918 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 12:04:30,731 INFO L231 Difference]: Finished difference. Result has 157 places, 273 transitions, 1642 flow [2022-11-16 12:04:30,731 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1642, PETRI_PLACES=157, PETRI_TRANSITIONS=273} [2022-11-16 12:04:30,733 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 26 predicate places. [2022-11-16 12:04:30,733 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 273 transitions, 1642 flow [2022-11-16 12:04:30,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:30,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:30,735 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:30,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:04:30,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:30,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:30,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1228163931, now seen corresponding path program 1 times [2022-11-16 12:04:30,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:30,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071807413] [2022-11-16 12:04:30,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:30,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:31,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:31,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:31,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071807413] [2022-11-16 12:04:31,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071807413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:31,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:31,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:04:31,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664158127] [2022-11-16 12:04:31,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:31,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:04:31,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:31,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:04:31,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:31,045 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 147 [2022-11-16 12:04:31,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 273 transitions, 1642 flow. Second operand has 6 states, 6 states have (on average 115.83333333333333) internal successors, (695), 6 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:31,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:31,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 147 [2022-11-16 12:04:31,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:31,271 INFO L130 PetriNetUnfolder]: 118/788 cut-off events. [2022-11-16 12:04:31,271 INFO L131 PetriNetUnfolder]: For 604/645 co-relation queries the response was YES. [2022-11-16 12:04:31,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1777 conditions, 788 events. 118/788 cut-off events. For 604/645 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4011 event pairs, 14 based on Foata normal form. 4/775 useless extension candidates. Maximal degree in co-relation 1705. Up to 135 conditions per place. [2022-11-16 12:04:31,275 INFO L137 encePairwiseOnDemand]: 138/147 looper letters, 18 selfloop transitions, 8 changer transitions 2/197 dead transitions. [2022-11-16 12:04:31,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 197 transitions, 1028 flow [2022-11-16 12:04:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:04:31,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:04:31,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 596 transitions. [2022-11-16 12:04:31,277 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8108843537414966 [2022-11-16 12:04:31,277 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 596 transitions. [2022-11-16 12:04:31,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 596 transitions. [2022-11-16 12:04:31,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:31,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 596 transitions. [2022-11-16 12:04:31,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:31,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:31,283 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:31,284 INFO L175 Difference]: Start difference. First operand has 157 places, 273 transitions, 1642 flow. Second operand 5 states and 596 transitions. [2022-11-16 12:04:31,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 197 transitions, 1028 flow [2022-11-16 12:04:31,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 197 transitions, 905 flow, removed 50 selfloop flow, removed 7 redundant places. [2022-11-16 12:04:31,294 INFO L231 Difference]: Finished difference. Result has 154 places, 192 transitions, 863 flow [2022-11-16 12:04:31,295 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=863, PETRI_PLACES=154, PETRI_TRANSITIONS=192} [2022-11-16 12:04:31,298 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 23 predicate places. [2022-11-16 12:04:31,298 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 192 transitions, 863 flow [2022-11-16 12:04:31,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.83333333333333) internal successors, (695), 6 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:31,298 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:31,299 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:31,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:04:31,299 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:31,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:31,300 INFO L85 PathProgramCache]: Analyzing trace with hash 254944672, now seen corresponding path program 1 times [2022-11-16 12:04:31,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:31,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187772622] [2022-11-16 12:04:31,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:31,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:31,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:31,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:31,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187772622] [2022-11-16 12:04:31,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187772622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:31,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:31,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:04:31,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63231842] [2022-11-16 12:04:31,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:31,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:04:31,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:31,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:04:31,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:31,747 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 147 [2022-11-16 12:04:31,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 192 transitions, 863 flow. Second operand has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:31,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:31,748 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 147 [2022-11-16 12:04:31,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:32,106 INFO L130 PetriNetUnfolder]: 351/1119 cut-off events. [2022-11-16 12:04:32,106 INFO L131 PetriNetUnfolder]: For 1135/1135 co-relation queries the response was YES. [2022-11-16 12:04:32,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3270 conditions, 1119 events. 351/1119 cut-off events. For 1135/1135 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5701 event pairs, 150 based on Foata normal form. 0/1097 useless extension candidates. Maximal degree in co-relation 3210. Up to 759 conditions per place. [2022-11-16 12:04:32,113 INFO L137 encePairwiseOnDemand]: 136/147 looper letters, 100 selfloop transitions, 31 changer transitions 14/228 dead transitions. [2022-11-16 12:04:32,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 228 transitions, 1359 flow [2022-11-16 12:04:32,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:04:32,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:04:32,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 623 transitions. [2022-11-16 12:04:32,115 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7063492063492064 [2022-11-16 12:04:32,115 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 623 transitions. [2022-11-16 12:04:32,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 623 transitions. [2022-11-16 12:04:32,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:32,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 623 transitions. [2022-11-16 12:04:32,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:32,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:32,119 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:32,120 INFO L175 Difference]: Start difference. First operand has 154 places, 192 transitions, 863 flow. Second operand 6 states and 623 transitions. [2022-11-16 12:04:32,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 228 transitions, 1359 flow [2022-11-16 12:04:32,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 228 transitions, 1339 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:04:32,131 INFO L231 Difference]: Finished difference. Result has 160 places, 210 transitions, 1089 flow [2022-11-16 12:04:32,132 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1089, PETRI_PLACES=160, PETRI_TRANSITIONS=210} [2022-11-16 12:04:32,132 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 29 predicate places. [2022-11-16 12:04:32,132 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 210 transitions, 1089 flow [2022-11-16 12:04:32,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:32,133 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:32,133 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:32,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:04:32,133 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:32,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:32,134 INFO L85 PathProgramCache]: Analyzing trace with hash -623372245, now seen corresponding path program 1 times [2022-11-16 12:04:32,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:32,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324238489] [2022-11-16 12:04:32,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:32,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:32,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:32,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324238489] [2022-11-16 12:04:32,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324238489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:32,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:32,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:04:32,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909781119] [2022-11-16 12:04:32,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:32,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:04:32,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:04:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:04:32,746 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 147 [2022-11-16 12:04:32,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 210 transitions, 1089 flow. Second operand has 12 states, 12 states have (on average 76.91666666666667) internal successors, (923), 12 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:32,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:32,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 147 [2022-11-16 12:04:32,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:33,476 INFO L130 PetriNetUnfolder]: 373/1256 cut-off events. [2022-11-16 12:04:33,477 INFO L131 PetriNetUnfolder]: For 1985/1993 co-relation queries the response was YES. [2022-11-16 12:04:33,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3874 conditions, 1256 events. 373/1256 cut-off events. For 1985/1993 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6680 event pairs, 78 based on Foata normal form. 11/1257 useless extension candidates. Maximal degree in co-relation 3800. Up to 680 conditions per place. [2022-11-16 12:04:33,485 INFO L137 encePairwiseOnDemand]: 136/147 looper letters, 162 selfloop transitions, 31 changer transitions 11/272 dead transitions. [2022-11-16 12:04:33,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 272 transitions, 1883 flow [2022-11-16 12:04:33,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:04:33,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:04:33,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 921 transitions. [2022-11-16 12:04:33,488 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5695732838589982 [2022-11-16 12:04:33,489 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 921 transitions. [2022-11-16 12:04:33,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 921 transitions. [2022-11-16 12:04:33,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:33,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 921 transitions. [2022-11-16 12:04:33,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.72727272727273) internal successors, (921), 11 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:33,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:33,497 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:33,497 INFO L175 Difference]: Start difference. First operand has 160 places, 210 transitions, 1089 flow. Second operand 11 states and 921 transitions. [2022-11-16 12:04:33,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 272 transitions, 1883 flow [2022-11-16 12:04:33,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 272 transitions, 1833 flow, removed 25 selfloop flow, removed 0 redundant places. [2022-11-16 12:04:33,513 INFO L231 Difference]: Finished difference. Result has 169 places, 208 transitions, 1095 flow [2022-11-16 12:04:33,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1035, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1095, PETRI_PLACES=169, PETRI_TRANSITIONS=208} [2022-11-16 12:04:33,515 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 38 predicate places. [2022-11-16 12:04:33,515 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 208 transitions, 1095 flow [2022-11-16 12:04:33,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 76.91666666666667) internal successors, (923), 12 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:33,516 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:33,516 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:33,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:04:33,516 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:33,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:33,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1316223310, now seen corresponding path program 1 times [2022-11-16 12:04:33,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:33,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243985129] [2022-11-16 12:04:33,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:33,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:34,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:34,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:34,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243985129] [2022-11-16 12:04:34,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243985129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:34,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:34,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:04:34,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586646839] [2022-11-16 12:04:34,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:34,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:04:34,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:34,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:04:34,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:34,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:34,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 208 transitions, 1095 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:34,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:34,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:34,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:35,299 INFO L130 PetriNetUnfolder]: 376/1306 cut-off events. [2022-11-16 12:04:35,299 INFO L131 PetriNetUnfolder]: For 1448/1457 co-relation queries the response was YES. [2022-11-16 12:04:35,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4163 conditions, 1306 events. 376/1306 cut-off events. For 1448/1457 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7175 event pairs, 71 based on Foata normal form. 21/1320 useless extension candidates. Maximal degree in co-relation 4085. Up to 483 conditions per place. [2022-11-16 12:04:35,308 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 153 selfloop transitions, 55 changer transitions 36/315 dead transitions. [2022-11-16 12:04:35,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 315 transitions, 1943 flow [2022-11-16 12:04:35,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:04:35,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:04:35,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1028 transitions. [2022-11-16 12:04:35,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6357452071737786 [2022-11-16 12:04:35,311 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1028 transitions. [2022-11-16 12:04:35,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1028 transitions. [2022-11-16 12:04:35,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:35,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1028 transitions. [2022-11-16 12:04:35,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 93.45454545454545) internal successors, (1028), 11 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) [2022-11-16 12:04:35,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:35,318 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:35,319 INFO L175 Difference]: Start difference. First operand has 169 places, 208 transitions, 1095 flow. Second operand 11 states and 1028 transitions. [2022-11-16 12:04:35,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 315 transitions, 1943 flow [2022-11-16 12:04:35,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 315 transitions, 1855 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-16 12:04:35,340 INFO L231 Difference]: Finished difference. Result has 171 places, 208 transitions, 1161 flow [2022-11-16 12:04:35,340 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1033, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1161, PETRI_PLACES=171, PETRI_TRANSITIONS=208} [2022-11-16 12:04:35,341 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 40 predicate places. [2022-11-16 12:04:35,341 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 208 transitions, 1161 flow [2022-11-16 12:04:35,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:35,342 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:35,342 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:35,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:04:35,342 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:35,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:35,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1532057336, now seen corresponding path program 2 times [2022-11-16 12:04:35,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:35,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537960557] [2022-11-16 12:04:35,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:35,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:35,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:35,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:35,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537960557] [2022-11-16 12:04:35,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537960557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:35,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:35,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:04:35,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751464592] [2022-11-16 12:04:35,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:35,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:04:35,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:35,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:04:35,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:04:35,852 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:35,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 208 transitions, 1161 flow. Second operand has 12 states, 12 states have (on average 78.83333333333333) internal successors, (946), 12 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:35,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:35,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:35,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:36,783 INFO L130 PetriNetUnfolder]: 492/1527 cut-off events. [2022-11-16 12:04:36,784 INFO L131 PetriNetUnfolder]: For 2743/2751 co-relation queries the response was YES. [2022-11-16 12:04:36,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5256 conditions, 1527 events. 492/1527 cut-off events. For 2743/2751 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 8541 event pairs, 25 based on Foata normal form. 32/1556 useless extension candidates. Maximal degree in co-relation 5175. Up to 438 conditions per place. [2022-11-16 12:04:36,794 INFO L137 encePairwiseOnDemand]: 136/147 looper letters, 237 selfloop transitions, 45 changer transitions 42/395 dead transitions. [2022-11-16 12:04:36,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 395 transitions, 2810 flow [2022-11-16 12:04:36,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:04:36,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:04:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1170 transitions. [2022-11-16 12:04:36,798 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6122448979591837 [2022-11-16 12:04:36,798 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1170 transitions. [2022-11-16 12:04:36,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1170 transitions. [2022-11-16 12:04:36,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:36,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1170 transitions. [2022-11-16 12:04:36,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.0) internal successors, (1170), 13 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:36,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:36,806 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:36,806 INFO L175 Difference]: Start difference. First operand has 171 places, 208 transitions, 1161 flow. Second operand 13 states and 1170 transitions. [2022-11-16 12:04:36,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 395 transitions, 2810 flow [2022-11-16 12:04:36,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 395 transitions, 2716 flow, removed 3 selfloop flow, removed 9 redundant places. [2022-11-16 12:04:36,833 INFO L231 Difference]: Finished difference. Result has 179 places, 232 transitions, 1495 flow [2022-11-16 12:04:36,833 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1495, PETRI_PLACES=179, PETRI_TRANSITIONS=232} [2022-11-16 12:04:36,834 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 48 predicate places. [2022-11-16 12:04:36,834 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 232 transitions, 1495 flow [2022-11-16 12:04:36,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 78.83333333333333) internal successors, (946), 12 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:36,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:36,835 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:36,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:04:36,835 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:36,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:36,836 INFO L85 PathProgramCache]: Analyzing trace with hash 731568238, now seen corresponding path program 3 times [2022-11-16 12:04:36,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:36,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779013754] [2022-11-16 12:04:36,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:36,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:37,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:37,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779013754] [2022-11-16 12:04:37,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779013754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:37,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:37,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:04:37,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018391121] [2022-11-16 12:04:37,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:37,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:04:37,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:37,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:04:37,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:37,546 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:37,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 232 transitions, 1495 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:37,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:37,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:37,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:38,812 INFO L130 PetriNetUnfolder]: 488/1592 cut-off events. [2022-11-16 12:04:38,813 INFO L131 PetriNetUnfolder]: For 4906/4915 co-relation queries the response was YES. [2022-11-16 12:04:38,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6059 conditions, 1592 events. 488/1592 cut-off events. For 4906/4915 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9166 event pairs, 72 based on Foata normal form. 21/1606 useless extension candidates. Maximal degree in co-relation 5972. Up to 643 conditions per place. [2022-11-16 12:04:38,825 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 182 selfloop transitions, 59 changer transitions 41/353 dead transitions. [2022-11-16 12:04:38,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 353 transitions, 2491 flow [2022-11-16 12:04:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:04:38,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:04:38,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1116 transitions. [2022-11-16 12:04:38,829 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2022-11-16 12:04:38,829 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1116 transitions. [2022-11-16 12:04:38,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1116 transitions. [2022-11-16 12:04:38,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:38,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1116 transitions. [2022-11-16 12:04:38,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:38,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:38,836 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:38,837 INFO L175 Difference]: Start difference. First operand has 179 places, 232 transitions, 1495 flow. Second operand 12 states and 1116 transitions. [2022-11-16 12:04:38,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 353 transitions, 2491 flow [2022-11-16 12:04:38,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 353 transitions, 2470 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:04:38,896 INFO L231 Difference]: Finished difference. Result has 186 places, 235 transitions, 1662 flow [2022-11-16 12:04:38,897 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1486, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1662, PETRI_PLACES=186, PETRI_TRANSITIONS=235} [2022-11-16 12:04:38,900 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 55 predicate places. [2022-11-16 12:04:38,900 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 235 transitions, 1662 flow [2022-11-16 12:04:38,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:38,903 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:38,903 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:38,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:04:38,903 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:38,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:38,904 INFO L85 PathProgramCache]: Analyzing trace with hash -463925136, now seen corresponding path program 4 times [2022-11-16 12:04:38,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:38,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424414066] [2022-11-16 12:04:38,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:38,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:39,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:39,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424414066] [2022-11-16 12:04:39,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424414066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:39,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:39,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:04:39,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255874305] [2022-11-16 12:04:39,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:39,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:04:39,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:39,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:04:39,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:39,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:39,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 235 transitions, 1662 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:39,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:39,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:39,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:40,908 INFO L130 PetriNetUnfolder]: 706/2225 cut-off events. [2022-11-16 12:04:40,909 INFO L131 PetriNetUnfolder]: For 9343/9351 co-relation queries the response was YES. [2022-11-16 12:04:40,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9018 conditions, 2225 events. 706/2225 cut-off events. For 9343/9351 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 14177 event pairs, 68 based on Foata normal form. 32/2244 useless extension candidates. Maximal degree in co-relation 8928. Up to 719 conditions per place. [2022-11-16 12:04:40,927 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 280 selfloop transitions, 79 changer transitions 55/485 dead transitions. [2022-11-16 12:04:40,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 485 transitions, 4059 flow [2022-11-16 12:04:40,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:04:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:04:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1135 transitions. [2022-11-16 12:04:40,931 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6434240362811792 [2022-11-16 12:04:40,931 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1135 transitions. [2022-11-16 12:04:40,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1135 transitions. [2022-11-16 12:04:40,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:40,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1135 transitions. [2022-11-16 12:04:40,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.58333333333333) internal successors, (1135), 12 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:40,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:40,939 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:40,939 INFO L175 Difference]: Start difference. First operand has 186 places, 235 transitions, 1662 flow. Second operand 12 states and 1135 transitions. [2022-11-16 12:04:40,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 485 transitions, 4059 flow [2022-11-16 12:04:40,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 485 transitions, 3867 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-11-16 12:04:41,003 INFO L231 Difference]: Finished difference. Result has 194 places, 274 transitions, 2307 flow [2022-11-16 12:04:41,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1536, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2307, PETRI_PLACES=194, PETRI_TRANSITIONS=274} [2022-11-16 12:04:41,004 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 63 predicate places. [2022-11-16 12:04:41,004 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 274 transitions, 2307 flow [2022-11-16 12:04:41,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:41,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:41,005 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:41,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:04:41,005 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:41,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:41,006 INFO L85 PathProgramCache]: Analyzing trace with hash -395925900, now seen corresponding path program 5 times [2022-11-16 12:04:41,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:41,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999593587] [2022-11-16 12:04:41,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:41,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:41,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:41,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:41,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999593587] [2022-11-16 12:04:41,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999593587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:41,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:41,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:04:41,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478578837] [2022-11-16 12:04:41,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:41,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:04:41,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:41,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:04:41,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:41,561 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:41,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 274 transitions, 2307 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:41,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:41,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:41,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:43,085 INFO L130 PetriNetUnfolder]: 843/2622 cut-off events. [2022-11-16 12:04:43,086 INFO L131 PetriNetUnfolder]: For 14536/14545 co-relation queries the response was YES. [2022-11-16 12:04:43,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11257 conditions, 2622 events. 843/2622 cut-off events. For 14536/14545 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 17565 event pairs, 135 based on Foata normal form. 32/2639 useless extension candidates. Maximal degree in co-relation 11161. Up to 961 conditions per place. [2022-11-16 12:04:43,113 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 265 selfloop transitions, 83 changer transitions 54/473 dead transitions. [2022-11-16 12:04:43,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 473 transitions, 4288 flow [2022-11-16 12:04:43,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:04:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:04:43,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1127 transitions. [2022-11-16 12:04:43,120 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2022-11-16 12:04:43,120 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1127 transitions. [2022-11-16 12:04:43,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1127 transitions. [2022-11-16 12:04:43,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:43,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1127 transitions. [2022-11-16 12:04:43,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.91666666666667) internal successors, (1127), 12 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:43,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:43,130 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:43,130 INFO L175 Difference]: Start difference. First operand has 194 places, 274 transitions, 2307 flow. Second operand 12 states and 1127 transitions. [2022-11-16 12:04:43,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 473 transitions, 4288 flow [2022-11-16 12:04:43,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 473 transitions, 4205 flow, removed 34 selfloop flow, removed 5 redundant places. [2022-11-16 12:04:43,290 INFO L231 Difference]: Finished difference. Result has 206 places, 300 transitions, 2854 flow [2022-11-16 12:04:43,291 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=2230, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2854, PETRI_PLACES=206, PETRI_TRANSITIONS=300} [2022-11-16 12:04:43,291 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 75 predicate places. [2022-11-16 12:04:43,292 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 300 transitions, 2854 flow [2022-11-16 12:04:43,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:43,292 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:43,293 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:43,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:04:43,293 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:43,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:43,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1327339904, now seen corresponding path program 6 times [2022-11-16 12:04:43,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:43,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657895346] [2022-11-16 12:04:43,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:43,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:43,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:43,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:43,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657895346] [2022-11-16 12:04:43,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657895346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:43,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:43,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:04:43,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032983720] [2022-11-16 12:04:43,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:43,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:04:43,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:43,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:04:43,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:43,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:43,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 300 transitions, 2854 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:43,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:43,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:43,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:45,720 INFO L130 PetriNetUnfolder]: 869/2776 cut-off events. [2022-11-16 12:04:45,720 INFO L131 PetriNetUnfolder]: For 20833/20841 co-relation queries the response was YES. [2022-11-16 12:04:45,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12563 conditions, 2776 events. 869/2776 cut-off events. For 20833/20841 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 19162 event pairs, 138 based on Foata normal form. 32/2792 useless extension candidates. Maximal degree in co-relation 12462. Up to 1322 conditions per place. [2022-11-16 12:04:45,742 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 257 selfloop transitions, 81 changer transitions 52/461 dead transitions. [2022-11-16 12:04:45,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 461 transitions, 4516 flow [2022-11-16 12:04:45,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:04:45,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:04:45,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1131 transitions. [2022-11-16 12:04:45,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.641156462585034 [2022-11-16 12:04:45,746 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1131 transitions. [2022-11-16 12:04:45,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1131 transitions. [2022-11-16 12:04:45,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:45,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1131 transitions. [2022-11-16 12:04:45,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.25) internal successors, (1131), 12 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:45,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:45,754 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:45,754 INFO L175 Difference]: Start difference. First operand has 206 places, 300 transitions, 2854 flow. Second operand 12 states and 1131 transitions. [2022-11-16 12:04:45,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 461 transitions, 4516 flow [2022-11-16 12:04:45,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 461 transitions, 4336 flow, removed 36 selfloop flow, removed 5 redundant places. [2022-11-16 12:04:45,905 INFO L231 Difference]: Finished difference. Result has 219 places, 316 transitions, 3292 flow [2022-11-16 12:04:45,906 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=2691, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3292, PETRI_PLACES=219, PETRI_TRANSITIONS=316} [2022-11-16 12:04:45,906 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 88 predicate places. [2022-11-16 12:04:45,906 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 316 transitions, 3292 flow [2022-11-16 12:04:45,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:45,907 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:45,907 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:45,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:04:45,908 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:45,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:45,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1641730998, now seen corresponding path program 7 times [2022-11-16 12:04:45,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:45,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115658876] [2022-11-16 12:04:45,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:45,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:46,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:46,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:46,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115658876] [2022-11-16 12:04:46,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115658876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:46,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:46,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:04:46,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519820898] [2022-11-16 12:04:46,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:46,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:04:46,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:46,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:04:46,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:46,426 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:46,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 316 transitions, 3292 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:46,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:46,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:46,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:48,057 INFO L130 PetriNetUnfolder]: 914/2994 cut-off events. [2022-11-16 12:04:48,057 INFO L131 PetriNetUnfolder]: For 29143/29152 co-relation queries the response was YES. [2022-11-16 12:04:48,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14159 conditions, 2994 events. 914/2994 cut-off events. For 29143/29152 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 21293 event pairs, 165 based on Foata normal form. 32/3010 useless extension candidates. Maximal degree in co-relation 14050. Up to 768 conditions per place. [2022-11-16 12:04:48,079 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 314 selfloop transitions, 97 changer transitions 54/536 dead transitions. [2022-11-16 12:04:48,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 536 transitions, 5759 flow [2022-11-16 12:04:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:04:48,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:04:48,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1128 transitions. [2022-11-16 12:04:48,082 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6394557823129252 [2022-11-16 12:04:48,082 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1128 transitions. [2022-11-16 12:04:48,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1128 transitions. [2022-11-16 12:04:48,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:48,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1128 transitions. [2022-11-16 12:04:48,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:48,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:48,090 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:48,091 INFO L175 Difference]: Start difference. First operand has 219 places, 316 transitions, 3292 flow. Second operand 12 states and 1128 transitions. [2022-11-16 12:04:48,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 536 transitions, 5759 flow [2022-11-16 12:04:48,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 536 transitions, 5721 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-11-16 12:04:48,336 INFO L231 Difference]: Finished difference. Result has 233 places, 340 transitions, 4003 flow [2022-11-16 12:04:48,337 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=3255, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4003, PETRI_PLACES=233, PETRI_TRANSITIONS=340} [2022-11-16 12:04:48,338 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 102 predicate places. [2022-11-16 12:04:48,338 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 340 transitions, 4003 flow [2022-11-16 12:04:48,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:48,339 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:48,339 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:48,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:04:48,340 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:48,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:48,341 INFO L85 PathProgramCache]: Analyzing trace with hash -244684534, now seen corresponding path program 8 times [2022-11-16 12:04:48,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:48,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474905432] [2022-11-16 12:04:48,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:48,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:48,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:48,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474905432] [2022-11-16 12:04:48,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474905432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:48,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:48,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:04:48,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827040465] [2022-11-16 12:04:48,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:48,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:04:48,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:48,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:04:48,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:48,889 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:48,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 340 transitions, 4003 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:48,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:48,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:48,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:50,523 INFO L130 PetriNetUnfolder]: 863/2880 cut-off events. [2022-11-16 12:04:50,523 INFO L131 PetriNetUnfolder]: For 35745/35754 co-relation queries the response was YES. [2022-11-16 12:04:50,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14614 conditions, 2880 events. 863/2880 cut-off events. For 35745/35754 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 20608 event pairs, 166 based on Foata normal form. 32/2893 useless extension candidates. Maximal degree in co-relation 14498. Up to 1290 conditions per place. [2022-11-16 12:04:50,567 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 298 selfloop transitions, 91 changer transitions 61/521 dead transitions. [2022-11-16 12:04:50,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 521 transitions, 5984 flow [2022-11-16 12:04:50,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:04:50,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:04:50,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1132 transitions. [2022-11-16 12:04:50,570 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6417233560090703 [2022-11-16 12:04:50,571 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1132 transitions. [2022-11-16 12:04:50,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1132 transitions. [2022-11-16 12:04:50,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:50,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1132 transitions. [2022-11-16 12:04:50,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.33333333333333) internal successors, (1132), 12 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:50,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:50,577 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:50,578 INFO L175 Difference]: Start difference. First operand has 233 places, 340 transitions, 4003 flow. Second operand 12 states and 1132 transitions. [2022-11-16 12:04:50,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 521 transitions, 5984 flow [2022-11-16 12:04:50,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 521 transitions, 5827 flow, removed 76 selfloop flow, removed 3 redundant places. [2022-11-16 12:04:50,796 INFO L231 Difference]: Finished difference. Result has 246 places, 358 transitions, 4466 flow [2022-11-16 12:04:50,797 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=3846, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4466, PETRI_PLACES=246, PETRI_TRANSITIONS=358} [2022-11-16 12:04:50,797 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 115 predicate places. [2022-11-16 12:04:50,798 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 358 transitions, 4466 flow [2022-11-16 12:04:50,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:50,798 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:50,798 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:50,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:04:50,798 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:50,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:50,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1331277914, now seen corresponding path program 9 times [2022-11-16 12:04:50,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:50,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104735183] [2022-11-16 12:04:50,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:50,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:51,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:51,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104735183] [2022-11-16 12:04:51,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104735183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:51,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:51,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:04:51,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541167149] [2022-11-16 12:04:51,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:51,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:04:51,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:51,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:04:51,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:51,323 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:51,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 358 transitions, 4466 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:51,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:51,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:51,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:53,016 INFO L130 PetriNetUnfolder]: 886/3030 cut-off events. [2022-11-16 12:04:53,016 INFO L131 PetriNetUnfolder]: For 47078/47087 co-relation queries the response was YES. [2022-11-16 12:04:53,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15796 conditions, 3030 events. 886/3030 cut-off events. For 47078/47087 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 22177 event pairs, 165 based on Foata normal form. 32/3043 useless extension candidates. Maximal degree in co-relation 15674. Up to 1117 conditions per place. [2022-11-16 12:04:53,036 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 308 selfloop transitions, 107 changer transitions 54/540 dead transitions. [2022-11-16 12:04:53,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 540 transitions, 6697 flow [2022-11-16 12:04:53,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:04:53,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:04:53,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1120 transitions. [2022-11-16 12:04:53,039 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2022-11-16 12:04:53,039 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1120 transitions. [2022-11-16 12:04:53,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1120 transitions. [2022-11-16 12:04:53,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:53,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1120 transitions. [2022-11-16 12:04:53,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.33333333333333) internal successors, (1120), 12 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:53,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:53,046 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:53,047 INFO L175 Difference]: Start difference. First operand has 246 places, 358 transitions, 4466 flow. Second operand 12 states and 1120 transitions. [2022-11-16 12:04:53,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 540 transitions, 6697 flow [2022-11-16 12:04:53,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 540 transitions, 6533 flow, removed 65 selfloop flow, removed 5 redundant places. [2022-11-16 12:04:53,406 INFO L231 Difference]: Finished difference. Result has 258 places, 372 transitions, 4934 flow [2022-11-16 12:04:53,407 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=4302, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4934, PETRI_PLACES=258, PETRI_TRANSITIONS=372} [2022-11-16 12:04:53,408 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 127 predicate places. [2022-11-16 12:04:53,408 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 372 transitions, 4934 flow [2022-11-16 12:04:53,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:53,409 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:53,409 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:53,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:04:53,410 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:53,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:53,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1569793752, now seen corresponding path program 10 times [2022-11-16 12:04:53,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:53,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849935439] [2022-11-16 12:04:53,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:53,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:53,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:53,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:53,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849935439] [2022-11-16 12:04:53,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849935439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:53,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:53,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:04:53,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174140205] [2022-11-16 12:04:53,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:53,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:04:53,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:53,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:04:53,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:53,982 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:53,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 372 transitions, 4934 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:53,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:53,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:53,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:55,929 INFO L130 PetriNetUnfolder]: 900/3141 cut-off events. [2022-11-16 12:04:55,929 INFO L131 PetriNetUnfolder]: For 60086/60095 co-relation queries the response was YES. [2022-11-16 12:04:55,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16935 conditions, 3141 events. 900/3141 cut-off events. For 60086/60095 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 23514 event pairs, 166 based on Foata normal form. 32/3154 useless extension candidates. Maximal degree in co-relation 16807. Up to 1345 conditions per place. [2022-11-16 12:04:55,948 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 276 selfloop transitions, 107 changer transitions 59/513 dead transitions. [2022-11-16 12:04:55,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 513 transitions, 6645 flow [2022-11-16 12:04:55,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:04:55,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:04:55,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1192 transitions. [2022-11-16 12:04:55,957 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6237571951857667 [2022-11-16 12:04:55,957 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1192 transitions. [2022-11-16 12:04:55,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1192 transitions. [2022-11-16 12:04:55,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:55,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1192 transitions. [2022-11-16 12:04:55,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 91.6923076923077) internal successors, (1192), 13 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:55,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:55,964 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:55,965 INFO L175 Difference]: Start difference. First operand has 258 places, 372 transitions, 4934 flow. Second operand 13 states and 1192 transitions. [2022-11-16 12:04:55,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 513 transitions, 6645 flow [2022-11-16 12:04:56,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 513 transitions, 6256 flow, removed 108 selfloop flow, removed 6 redundant places. [2022-11-16 12:04:56,398 INFO L231 Difference]: Finished difference. Result has 271 places, 381 transitions, 5159 flow [2022-11-16 12:04:56,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=4558, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5159, PETRI_PLACES=271, PETRI_TRANSITIONS=381} [2022-11-16 12:04:56,400 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 140 predicate places. [2022-11-16 12:04:56,400 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 381 transitions, 5159 flow [2022-11-16 12:04:56,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:56,401 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:56,401 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:56,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:04:56,401 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:56,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:56,402 INFO L85 PathProgramCache]: Analyzing trace with hash 300898658, now seen corresponding path program 11 times [2022-11-16 12:04:56,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:56,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811272209] [2022-11-16 12:04:56,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:56,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:56,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:56,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:56,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811272209] [2022-11-16 12:04:56,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811272209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:56,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:56,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:04:56,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913297479] [2022-11-16 12:04:56,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:56,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:04:56,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:56,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:04:56,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:56,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:56,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 381 transitions, 5159 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:56,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:56,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:56,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:58,812 INFO L130 PetriNetUnfolder]: 827/3001 cut-off events. [2022-11-16 12:04:58,812 INFO L131 PetriNetUnfolder]: For 54752/54761 co-relation queries the response was YES. [2022-11-16 12:04:58,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16282 conditions, 3001 events. 827/3001 cut-off events. For 54752/54761 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 22697 event pairs, 120 based on Foata normal form. 32/3020 useless extension candidates. Maximal degree in co-relation 16148. Up to 1262 conditions per place. [2022-11-16 12:04:58,829 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 282 selfloop transitions, 118 changer transitions 51/522 dead transitions. [2022-11-16 12:04:58,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 522 transitions, 6823 flow [2022-11-16 12:04:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:04:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:04:58,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1201 transitions. [2022-11-16 12:04:58,841 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6284667713239142 [2022-11-16 12:04:58,841 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1201 transitions. [2022-11-16 12:04:58,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1201 transitions. [2022-11-16 12:04:58,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:58,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1201 transitions. [2022-11-16 12:04:58,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 92.38461538461539) internal successors, (1201), 13 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:58,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:58,848 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:58,848 INFO L175 Difference]: Start difference. First operand has 271 places, 381 transitions, 5159 flow. Second operand 13 states and 1201 transitions. [2022-11-16 12:04:58,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 522 transitions, 6823 flow [2022-11-16 12:04:59,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 522 transitions, 6662 flow, removed 43 selfloop flow, removed 6 redundant places. [2022-11-16 12:04:59,134 INFO L231 Difference]: Finished difference. Result has 280 places, 387 transitions, 5475 flow [2022-11-16 12:04:59,135 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=5000, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5475, PETRI_PLACES=280, PETRI_TRANSITIONS=387} [2022-11-16 12:04:59,135 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 149 predicate places. [2022-11-16 12:04:59,135 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 387 transitions, 5475 flow [2022-11-16 12:04:59,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:59,136 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:59,136 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:59,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:04:59,136 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:04:59,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:59,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1372586038, now seen corresponding path program 12 times [2022-11-16 12:04:59,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:59,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892570081] [2022-11-16 12:04:59,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:59,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:59,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:59,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:59,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892570081] [2022-11-16 12:04:59,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892570081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:59,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:59,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:04:59,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550897835] [2022-11-16 12:04:59,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:59,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:04:59,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:59,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:04:59,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:59,638 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-16 12:04:59,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 387 transitions, 5475 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:59,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:59,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-16 12:04:59,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:05:01,236 INFO L130 PetriNetUnfolder]: 758/2892 cut-off events. [2022-11-16 12:05:01,237 INFO L131 PetriNetUnfolder]: For 57836/57845 co-relation queries the response was YES. [2022-11-16 12:05:01,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15696 conditions, 2892 events. 758/2892 cut-off events. For 57836/57845 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 21945 event pairs, 134 based on Foata normal form. 32/2908 useless extension candidates. Maximal degree in co-relation 15558. Up to 1181 conditions per place. [2022-11-16 12:05:01,263 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 266 selfloop transitions, 109 changer transitions 70/506 dead transitions. [2022-11-16 12:05:01,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 506 transitions, 6933 flow [2022-11-16 12:05:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:05:01,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:05:01,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1174 transitions. [2022-11-16 12:05:01,266 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6143380429094715 [2022-11-16 12:05:01,266 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1174 transitions. [2022-11-16 12:05:01,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1174 transitions. [2022-11-16 12:05:01,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:05:01,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1174 transitions. [2022-11-16 12:05:01,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.3076923076923) internal successors, (1174), 13 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:01,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:01,272 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:01,273 INFO L175 Difference]: Start difference. First operand has 280 places, 387 transitions, 5475 flow. Second operand 13 states and 1174 transitions. [2022-11-16 12:05:01,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 506 transitions, 6933 flow [2022-11-16 12:05:01,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 506 transitions, 6631 flow, removed 44 selfloop flow, removed 17 redundant places. [2022-11-16 12:05:01,613 INFO L231 Difference]: Finished difference. Result has 276 places, 372 transitions, 5365 flow [2022-11-16 12:05:01,613 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=5161, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5365, PETRI_PLACES=276, PETRI_TRANSITIONS=372} [2022-11-16 12:05:01,614 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 145 predicate places. [2022-11-16 12:05:01,614 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 372 transitions, 5365 flow [2022-11-16 12:05:01,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:01,615 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:05:01,615 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:01,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:05:01,615 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 12:05:01,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:01,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1863796834, now seen corresponding path program 1 times [2022-11-16 12:05:01,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:01,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470684734] [2022-11-16 12:05:01,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:01,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:02,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:02,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470684734] [2022-11-16 12:05:02,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470684734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:02,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:02,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:05:02,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557925659] [2022-11-16 12:05:02,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:02,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:05:02,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:02,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:05:02,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:05:02,140 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 147 [2022-11-16 12:05:02,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 372 transitions, 5365 flow. Second operand has 12 states, 12 states have (on average 77.91666666666667) internal successors, (935), 12 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:02,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:05:02,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 147 [2022-11-16 12:05:02,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:05:03,099 INFO L130 PetriNetUnfolder]: 643/2165 cut-off events. [2022-11-16 12:05:03,099 INFO L131 PetriNetUnfolder]: For 46576/46577 co-relation queries the response was YES. [2022-11-16 12:05:03,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12742 conditions, 2165 events. 643/2165 cut-off events. For 46576/46577 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 14740 event pairs, 286 based on Foata normal form. 44/2186 useless extension candidates. Maximal degree in co-relation 12609. Up to 1312 conditions per place. [2022-11-16 12:05:03,108 INFO L137 encePairwiseOnDemand]: 137/147 looper letters, 0 selfloop transitions, 0 changer transitions 480/480 dead transitions. [2022-11-16 12:05:03,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 480 transitions, 8303 flow [2022-11-16 12:05:03,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:05:03,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:05:03,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 909 transitions. [2022-11-16 12:05:03,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.562152133580705 [2022-11-16 12:05:03,111 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 909 transitions. [2022-11-16 12:05:03,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 909 transitions. [2022-11-16 12:05:03,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:05:03,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 909 transitions. [2022-11-16 12:05:03,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.63636363636364) internal successors, (909), 11 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:03,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:03,116 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:03,116 INFO L175 Difference]: Start difference. First operand has 276 places, 372 transitions, 5365 flow. Second operand 11 states and 909 transitions. [2022-11-16 12:05:03,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 480 transitions, 8303 flow [2022-11-16 12:05:03,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 480 transitions, 7487 flow, removed 112 selfloop flow, removed 21 redundant places. [2022-11-16 12:05:03,269 INFO L231 Difference]: Finished difference. Result has 253 places, 0 transitions, 0 flow [2022-11-16 12:05:03,270 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=4709, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=253, PETRI_TRANSITIONS=0} [2022-11-16 12:05:03,270 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 122 predicate places. [2022-11-16 12:05:03,270 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 0 transitions, 0 flow [2022-11-16 12:05:03,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 77.91666666666667) internal successors, (935), 12 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:03,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2022-11-16 12:05:03,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2022-11-16 12:05:03,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-11-16 12:05:03,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2022-11-16 12:05:03,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2022-11-16 12:05:03,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2022-11-16 12:05:03,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2022-11-16 12:05:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2022-11-16 12:05:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2022-11-16 12:05:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2022-11-16 12:05:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2022-11-16 12:05:03,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:05:03,277 INFO L444 BasicCegarLoop]: Path program histogram: [12, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:03,282 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:05:03,283 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:05:03,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:05:03 BasicIcfg [2022-11-16 12:05:03,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:05:03,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:05:03,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:05:03,289 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:05:03,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:25" (3/4) ... [2022-11-16 12:05:03,292 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:05:03,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 12:05:03,302 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-16 12:05:03,302 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:05:03,302 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:05:03,302 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:05:03,333 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:05:03,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:05:03,334 INFO L158 Benchmark]: Toolchain (without parser) took 39422.65ms. Allocated memory was 102.8MB in the beginning and 666.9MB in the end (delta: 564.1MB). Free memory was 69.0MB in the beginning and 513.7MB in the end (delta: -444.7MB). Peak memory consumption was 118.3MB. Max. memory is 16.1GB. [2022-11-16 12:05:03,335 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory was 56.1MB in the beginning and 56.0MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:05:03,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.87ms. Allocated memory is still 102.8MB. Free memory was 68.8MB in the beginning and 68.5MB in the end (delta: 321.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:05:03,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.72ms. Allocated memory is still 102.8MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:05:03,336 INFO L158 Benchmark]: Boogie Preprocessor took 54.41ms. Allocated memory is still 102.8MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:05:03,336 INFO L158 Benchmark]: RCFGBuilder took 726.36ms. Allocated memory is still 102.8MB. Free memory was 64.3MB in the beginning and 46.2MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 12:05:03,336 INFO L158 Benchmark]: TraceAbstraction took 37955.01ms. Allocated memory was 102.8MB in the beginning and 666.9MB in the end (delta: 564.1MB). Free memory was 45.4MB in the beginning and 516.9MB in the end (delta: -471.5MB). Peak memory consumption was 421.8MB. Max. memory is 16.1GB. [2022-11-16 12:05:03,337 INFO L158 Benchmark]: Witness Printer took 45.77ms. Allocated memory is still 666.9MB. Free memory was 516.9MB in the beginning and 513.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:05:03,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory was 56.1MB in the beginning and 56.0MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.87ms. Allocated memory is still 102.8MB. Free memory was 68.8MB in the beginning and 68.5MB in the end (delta: 321.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.72ms. Allocated memory is still 102.8MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.41ms. Allocated memory is still 102.8MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 726.36ms. Allocated memory is still 102.8MB. Free memory was 64.3MB in the beginning and 46.2MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 37955.01ms. Allocated memory was 102.8MB in the beginning and 666.9MB in the end (delta: 564.1MB). Free memory was 45.4MB in the beginning and 516.9MB in the end (delta: -471.5MB). Peak memory consumption was 421.8MB. Max. memory is 16.1GB. * Witness Printer took 45.77ms. Allocated memory is still 666.9MB. Free memory was 516.9MB in the beginning and 513.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: 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 3 procedures, 196 locations, 11 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: 37.7s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 26.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3074 SdHoareTripleChecker+Valid, 10.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3074 mSDsluCounter, 1715 SdHoareTripleChecker+Invalid, 8.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1002 mSDsCounter, 1526 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9937 IncrementalHoareTripleChecker+Invalid, 11463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1526 mSolverCounterUnsat, 713 mSDtfsCounter, 9937 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 369 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5475occurred in iteration=18, InterpolantAutomatonStates: 204, 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, 0.3s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 1596 NumberOfCodeBlocks, 1596 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1576 ConstructedInterpolants, 0 QuantifiedInterpolants, 10891 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:05:03,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32cde9-7472-4bb1-a7cb-60c2a9a6afa4/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE